Re: [PVE-User] Discard transmission between VM / LVM / mdadm layers ?

[Michael Rasmussen via pve-user]

--- Begin Message ---
On Sun, 15 Dec 2019 12:51:01 +0100
Frédéric MASSOT  wrote:

> Le 13/12/2019 à 13:15, Alexandre DERUMIER a écrit :
> > When a VM sends a discard/trim command, is it sent to the SSD, LVM
> > does not block the command?
> > 
> > Hi, yes it's working with lvm (lvm thin only)  
> 
> Hi,
> 
> I opened a bug report to the debian-installer package to see if it
> could add lvm-thin support.
> 
LVM supports discard so there is no need to change to lvm-thin for that
reason.

From lvm.conf:
"# Configuration option devices/issue_discards.
# Issue discards to PVs that are no longer used by an LV.
# Discards are sent to an LV's underlying physical volumes when
the LV # is no longer using the physical volumes' space, e.g. lvremove,
# lvreduce. Discards inform the storage that a region is no
longer # used. Storage that supports discards advertise the
protocol-specific # way discards should be issued by the kernel (TRIM,
UNMAP, or # WRITE SAME with UNMAP bit set). Not all storage will
support or # benefit from discards, but SSDs and thinly provisioned LUNs
# generally do. If enabled, discards will only be issued if
both the # storage and kernel provide support.
    issue_discards = 0
"

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Re: [PVE-User] SQL server 2014 poor performances

[Michael Rasmussen via pve-user]

--- Begin Message ---
On Mon, 28 Oct 2019 15:47:18 +0100 (CET)
Fabrizio Cuseo  wrote:

> Hello.
> I have a customer with proxmox 5.X, 4 x SSD (WD blue) in raid-10 ZFS
> configuration, Poweredge R710 dual xeon and 144Gbyte RAM. Same
> problem with 4 x SAS 15k rpm drives.
> 
Are you sure it is SSD? I don't recollect that WD has produced WD blue
as SSD.

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Re: [PVE-User] RBD move disk : what about "sparse" blocks ?

[Michael Rasmussen via pve-user]

--- Begin Message ---
On Thu, 9 May 2019 17:54:30 +0200
Florent B  wrote:

> 
> I don't know why my Debian/Ubuntu VMs can't trim all disk space after
> moving rbd disk. I need to reboot VM to do it (simple reboot is
> enough)
> 
> I always use LVM, is it related ?
> 
Try searching for issue_discards in /etc/lvm/lvm.conf

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Re: [PVE-User] just planing upgrade path

[Michael Rasmussen via pve-user]

--- Begin Message ---
On Mon, 1 Apr 2019 13:15:12 -0400
David Lawley  wrote:

> vm only, understand openvz was dropped for lxc, which I don't use
> 
Personally I haven't tried but if it is vm only I cannot see why it
should not work. If it is important though, I would try it in a test
configuration.

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Re: [PVE-User] just planing upgrade path

[Michael Rasmussen via pve-user]

--- Begin Message ---
On Mon, 1 Apr 2019 13:06:27 -0400
David Lawley  wrote:

> are backups made with 3.4 (via backup at the Datacenter options)
> compatible with 5.3 PVE, to restore from?
> 
I depends whether the backups are VM's or containers.

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Re: [PVE-User] Loadbalancing SPICE

[Michael Rasmussen]

On Tue, 19 Feb 2019 10:03:10 +0100
Mark Schouten  wrote:

> 
> Has anyone succeeded in loadbalancing SPICE, or does anybody know
> what I should change in Proxmox settings to make this possible?
> 
> Thanks!
> 
My haproxy has this configuration to handle spice:
listen proxmox_spice
bind *:3128
option tcpka
balance source
server esx1 :3128 check
server esx2 :3128 check



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Re: [PVE-User] Vzdump with and without pigz

[Michael Rasmussen]

On Tue, 4 Sep 2018 12:50:49 -0300
Gilberto Nunes  wrote:

> Yes. I use the default lzo.
> 
To be able to compare you need to use gzip.

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Re: [PVE-User] Vzdump with and without pigz

[Michael Rasmussen]

On Tue, 4 Sep 2018 12:24:18 -0300
Gilberto Nunes  wrote:

> 
> With pigz and bwlimit it's not suppose to increase the performance or
> I miss something?
> 
Without pigz do you then use gzip or the default lzo? Otherwise you
compare apples to pairs.

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Re: [PVE-User] DHCP for non cloudinit VM

[Michael Rasmussen]

On Tue, 21 Aug 2018 08:18:14 +0200
José Manuel Giner  wrote:

> It's not that simple when IP allocation depends on the VM MAC addres, if you 
> have a few VMs it may not be a problem, but hosting companies that handle 
> thousands of VMs do not want to assign any random IP to a VPS and would be 
> better to have a native integration, at least at the API level.
> 
The MAC address is configurable for a VM to match a IP <-> MAC relation
with fixed addresses.

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Re: [PVE-User] ZFS Node failing to boot

[Michael Rasmussen]

On Sat, 23 Sep 2017 09:38:21 +1000
Lindsay Mathieson <lindsay.mathie...@gmail.com> wrote:

> 
> Do not work for me as the keyboard does not work when booting in debug mode!
> 
What kind of keyboard. USB or PS/2?
If USB are your keyboard connected through a USB3 port?

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Re: [PVE-User] proxmox boot from usb

[Michael Rasmussen]

On Sun, 10 Sep 2017 14:41:20 +0200
Gregor Burck <gre...@aeppelbroe.de> wrote:

> Hi,
> 
> and now the next question:
> 
> Is it recommended to boot from a USB Stick?
> 
If your motherboard has a M.2 socket I would strongly recommend using
that. The default Debian distribution which Proxmox is build upon is
not designed to be used from a USB stick.

See more of M.2 here: https://en.wikipedia.org/wiki/M.2

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Re: [PVE-User] PVE ZFS Over ISCSI

[Michael Rasmussen]

On Fri, 11 Aug 2017 19:55:39 +0300
Mikhail <m...@plus-plus.su> wrote:

> FreeNAS and NAS4Free will fail because they're based on FreeBSD which
> uses ctld (CAM Target Layer) as a iSCSI target. ctld is not supported by
> Proxmox.
I have written a storage plugin for FreeNAS which works with the
FreeNAS API. The plugin is currently under review by the proxmox devs
but hopefully it should be available soon in proxmox 5.0 (I have it
running here both under 4.4 and 5.0).

This plugin also uses the native SCSI subsystem on the host - no
libiscsi, so MPIO is supported.

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Re: [PVE-User] Shared storage on NAS speed - LVM(over iSCSI) vs NFS

[Michael Rasmussen]

On Thu, 20 Jul 2017 00:49:29 +0300
Mikhail <m...@plus-plus.su> wrote:

> 
> I heard about original OmniOS, by OmniTI, is being discountinued and
> that OmniOSCE takes care of it.
> But I could not find installation ISO images of the OmniOSCE. Which
> procedure to follow to get OmniOSCE installed? I guess it is to get
> latest available OmniOS installation ISO from
> https://omnios.omniti.com/wiki.php/Installation and then follow
> procedure described on the http://www.omniosce.org/ page to convert it
> into OmniOSCE?
> 
This is correct. Pay attention to upgrade to latest kernel release
r151022i if you have HBA's based on LSI SAS >= 2300 (using mr_sas
driver)

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Re: [PVE-User] Shared storage on NAS speed - LVM(over iSCSI) vs NFS

[Michael Rasmussen]

On Thu, 20 Jul 2017 00:07:44 +0300
Mikhail <m...@plus-plus.su> wrote:

> 
> The time to give OmniOS a try has come, I also noticed that X550 NICs
> are supported by OmniOS since late autumn 2016. Luckily Proxmox supports
> online storage migration (Move disk) without bringing vms down - this
> simplifies storage migration a lot in live environment!
> 
Remember to get it here: http://www.omniosce.org/

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Re: [PVE-User] Shared storage on NAS speed - LVM(over iSCSI) vs NFS

[Michael Rasmussen]

On Wed, 19 Jul 2017 18:30:01 +0300
Mikhail <m...@plus-plus.su> wrote:

> 
> Basically, it looks like MDADM array, and LVM on top (and possibly FS
> inside the VMs) need to be created with manual calculations for
> alignment and these calculations need to be specified on the command
> line at the time of creation. It is pity to find out this now, when
> server is in active use - many manuals mention that MDADM, LVM, etc are
> smart enough these days to make these calculations automatically at the
> time of creation, but this does not appear to be true and that's where
> problems come from later on.
> 
Your problem is that your disks is native 4k which advertises 512b as
well. This means lvm and mdadm got confused ;-)

> I guess my only way to fix this is to migrate everything off that server
> and reinstall it from scratch, throwing away things like MDADM and LVM
> this time and replacing them with ZFS for storage purposes.
> 
You mentioned before that you hoped to use Omnios. Latest stable
now supports your nics.

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Re: [PVE-User] Shared storage on NAS speed - LVM(over iSCSI) vs NFS

[Michael Rasmussen]

On Wed, 19 Jul 2017 15:10:22 +0300
Mikhail <m...@plus-plus.su> wrote:

> Here's what I can see now:
> 
> 1) fdisk output for one of disks in array:
> # fdisk -l /dev/sda
> 
> Disk /dev/sda: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors
> Units: sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 4096 bytes
> I/O size (minimum/optimal): 4096 bytes / 4096 bytes
> Disklabel type: gpt
> Disk identifier: 482FED1A-9CD0-4AEF-ACFC-D981C9916FE2
> 
> Device   StartEndSectors  Size Type
> /dev/sda1 204819537911951744  953M Linux filesystem
> /dev/sda2  1953792 7814035455 7812081664  3.7T Linux RAID
> 
> 2) MDADM array details:
> 
> # mdadm --detail /dev/md0
> /dev/md0:
> Version : 1.2
>   Creation Time : Fri Mar 18 18:27:06 2016
>  Raid Level : raid10
>  Array Size : 7811819520 (7449.93 GiB 7999.30 GB)
>   Used Dev Size : 3905909760 (3724.97 GiB 3999.65 GB)
>Raid Devices : 4
>   Total Devices : 4
> Persistence : Superblock is persistent
> 
>   Intent Bitmap : Internal
> 
> Update Time : Wed Jul 19 14:58:57 2017
>   State : active, checking
>  Active Devices : 4
> Working Devices : 4
>  Failed Devices : 0
>   Spare Devices : 0
> 
>  Layout : near=2
>  Chunk Size : 512K
> 
Try do read here:
http://dennisfleurbaaij.blogspot.dk/2013/01/setting-up-linux-mdadm-raid-array-with.html

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Re: [PVE-User] qm migrate: strange output

[Michael Rasmussen]

The former is for HA vm's the latter for non HA vm's

On June 20, 2017 6:19:36 PM GMT+02:00, Uwe Sauter  
wrote:
>Hi all,
>
>usually when I update my PVE cluster I do it in a rolling fashion:
>1) empty one node from running VMs
>2) update & reboot that node
>3) go to next node
>4) migrate all running VMs to already updated node
>5) go to 2 until no more nodes need update
>
>For step 1 (or 4) I usually do:
>
># qm list
>  VMID NAME STATUS MEM(MB)BOOTDISK(GB) PID
>   106 test1running2048  32.00 4993
>   112 test2running1024  16.00 5218
>
># for i in 106 112; do qm migrate $i px-bravo-cluster --online; done
>
>Usually I get multiple lines like:
>
>Executing HA migrate for VM 106 to node px-bravo-cluster
>Executing HA migrate for VM 112 to node px-bravo-cluster
>
>But once in a while (in the last few days more often) I get:
>
>Jun 20 18:15:42 starting migration of VM 106 to node 'px-bravo-cluster'
>(169.254.42.49)
>Jun 20 18:15:42 copying disk images
>Jun 20 18:15:42 starting VM 106 on remote node 'px-bravo-cluster'
>Jun 20 18:15:46 start remote tunnel
>Jun 20 18:15:46 starting online/live migration on
>unix:/run/qemu-server/106.migrate
>Jun 20 18:15:46 migrate_set_speed: 8589934592
>Jun 20 18:15:46 migrate_set_downtime: 0.1
>Jun 20 18:15:46 set migration_caps
>Jun 20 18:15:46 set cachesize: 214748364
>Jun 20 18:15:46 start migrate command to
>unix:/run/qemu-server/106.migrate
>Jun 20 18:15:48 migration status: active (transferred 632787397,
>remaining 463048704), total 2156732416)
>Jun 20 18:15:48 migration xbzrle cachesize: 134217728 transferred 0
>pages 0 cachemiss 0 overflow 0
>Jun 20 18:15:50 migration speed: 512.00 MB/s - downtime 81 ms
>Jun 20 18:15:50 migration status: completed
>Jun 20 18:15:54 migration finished successfully (duration 00:00:13)
>Jun 20 18:15:55 starting migration of VM 112 to node 'px-bravo-cluster'
>(169.254.42.49)
>Jun 20 18:15:55 copying disk images
>Jun 20 18:15:55 starting VM 112 on remote node 'px-bravo-cluster'
>Jun 20 18:15:58 start remote tunnel
>Jun 20 18:15:58 starting online/live migration on
>unix:/run/qemu-server/112.migrate
>Jun 20 18:15:58 migrate_set_speed: 8589934592
>Jun 20 18:15:58 migrate_set_downtime: 0.1
>Jun 20 18:15:58 set migration_caps
>Jun 20 18:15:58 set cachesize: 107374182
>Jun 20 18:15:58 start migrate command to
>unix:/run/qemu-server/112.migrate
>Jun 20 18:16:00 migration status: active (transferred 876920642,
>remaining 143405056), total 1082990592)
>Jun 20 18:16:00 migration xbzrle cachesize: 67108864 transferred 0
>pages 0 cachemiss 0 overflow 0
>Jun 20 18:16:02 migration speed: 256.00 MB/s - downtime 66 ms
>Jun 20 18:16:02 migration status: completed
>Jun 20 18:16:06 migration finished successfully (duration 00:00:12)
>
>
>Can someone explain under which circumstances this output is displayed
>instead of just the short message that migration
>was started?
>
>
>Regards,
>
>   Uwe
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Re: [PVE-User] PVE (Enterprise) getting error trying to update?

[Michael Rasmussen]

On Sun, 4 Jun 2017 15:04:40 -0700
Devin Acosta <de...@pabstatencio.com> wrote:

> I have activated my subscription over a day ago and everything appears to
> be alright on my side as far as the instance being activated. However I get
> server certification validation error?
> 
> root@pve:/etc/apt/sources.list.d# apt-get update
> Hit:1 http://ftp.us.debian.org/debian stretch InRelease
Proxmox 5 is not released yet so you wont find it in enterprise repo.
It is only available in repo stretch test:
deb http://download.proxmox.com/debian/pve stretch pvetest

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Re: [PVE-User] VLAN between LXC containers on differents proxmox 4

[Michael Rasmussen]

On Tue, 4 Apr 2017 22:48:54 +0200
Guillaume <prox...@shadowprojects.org> wrote:

> The vrack system already took care of that, that's why i didn't speak about 
> that part at all on my initial email.
> 
Ok. The next thing is that I do not think it is possible to configure
vlans inside of a LXC you need to configure the bridge on the proxmox
node to handle the vlan stuff.

This is a working example from my installation:
Proxmox:
auto vmbr1000
iface vmbr1000 inet manual
bridge_ports bond0.1000
bridge_stp off
bridge_fd 0

LXC:
net0: name=eth0,bridge=vmbr1000,hwaddr=3A:66:32:39:38:65,ip=dhcp,type=veth  


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Re: [PVE-User] VLAN between LXC containers on differents proxmox 4

[Michael Rasmussen]

On Tue, 4 Apr 2017 17:34:45 +0200
Guillaume <prox...@shadowprojects.org> wrote:

> Is my proxmox network config right ?
> What about the need to create a network interface on the host inside the vlan 
> used by the lxc containers ?
> >
Before you can positive confirm that your proxmox nodes are connected
through a trunk port the rest can wait.

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Re: [PVE-User] VLAN between LXC containers on differents proxmox 4

[Michael Rasmussen]

On Tue, 4 Apr 2017 16:58:37 +0200
Guillaume <prox...@shadowprojects.org> wrote:

> They support vlan between servers in the vrack.
> 
Then you need to have a trunk port instead of an access port in the
switch where the servers are connected.

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Re: [PVE-User] VLAN between LXC containers on differents proxmox 4

[Michael Rasmussen]

On Tue, 4 Apr 2017 12:43:32 +0200
Guillaume <prox...@shadowprojects.org> wrote:

> VLAN works between containers on the same proxmox (101 & 103), but isn't 
> between containers on differents proxmox (101 & 102 or 103 & 102).
> 
To be able to use vlans between different proxmox nodes the switch must
support vlan so you should ask OVH support whether vlans between
servers are supported.

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Re: [PVE-User] VM migrates then locks up

[Michael Rasmussen]

On Fri, 10 Feb 2017 14:18:00 -0600
Gerald Brandt <g...@majentis.com> wrote:

> 
> Xeon:
> root@gbr-proxmox-2:~# lscpu
> Architecture:  x86_64
> CPU op-mode(s):32-bit, 64-bit
> Byte Order:Little Endian
> CPU(s):4
> On-line CPU(s) list:   0-3
> Thread(s) per core:1
> Core(s) per socket:2
> Socket(s): 2
> NUMA node(s):  1
> Vendor ID: GenuineIntel
> CPU family:6
> Model: 15
> Model name:Intel(R) Xeon(R) CPU 5148  @ 2.33GHz
> Stepping:  11
> CPU MHz:   2333.205
> BogoMIPS:  4666.69
> Virtualization:VT-x
> L1d cache: 32K
> L1i cache: 32K
> L2 cache:  4096K
> NUMA node0 CPU(s): 0-3
> 
This is a very old cpu (Q206):
https://ark.intel.com/products/27223/Intel-Xeon-Processor-LV-5148-4M-Cache-2_33-GHz-1333-MHz-FSB

So chances are you will never be able to migrate from the AMD
FX(tm)-8150 to the Intel Xeon since proxmox does not specify a lowest common 
cpu denominator between the 2 cpu's unless you manually disable some cpu flags 
in the config file for your VM's. As I recall it this was also the case 
somewhere 2.x or maybe early 3.x.

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Re: [PVE-User] VM migrates then locks up

[Michael Rasmussen]

On Fri, 10 Feb 2017 14:18:00 -0600
Gerald Brandt <g...@majentis.com> wrote:

> 
> Xeon:
> root@gbr-proxmox-2:~# lscpu
> Architecture:  x86_64
> CPU op-mode(s):32-bit, 64-bit
> Byte Order:Little Endian
> CPU(s):4
> On-line CPU(s) list:   0-3
> Thread(s) per core:1
> Core(s) per socket:2
> Socket(s): 2
> NUMA node(s):  1
> Vendor ID: GenuineIntel
> CPU family:6
> Model: 15
> Model name:Intel(R) Xeon(R) CPU 5148  @ 2.33GHz
> Stepping:  11
> CPU MHz:   2333.205
> BogoMIPS:  4666.69
> Virtualization:VT-x
> L1d cache: 32K
> L1i cache: 32K
> L2 cache:  4096K
> NUMA node0 CPU(s): 0-3
> 
> 
> Intel:
> root@gbr-proxmox-1:~# lscpu
> Architecture:  x86_64
> CPU op-mode(s):32-bit, 64-bit
> Byte Order:Little Endian
> CPU(s):8
> On-line CPU(s) list:   0-7
> Thread(s) per core:2
> Core(s) per socket:4
> Socket(s): 1
> NUMA node(s):  1
> Vendor ID: AuthenticAMD
> CPU family:21
> Model: 1
> Model name:AMD FX(tm)-8150 Eight-Core Processor
> Stepping:  2
> CPU MHz:   4153.955
> BogoMIPS:  8307.91
> Virtualization:AMD-V
> L1d cache: 16K
> L1i cache: 64K
> L2 cache:  2048K
> L3 cache:  8192K
> NUMA node0 CPU(s): 0-7
> 
I need to see the cpu flags so could you do on both proxmox hosts:
cat /proc/cpuinfo |grep -m 1 flags

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Re: [PVE-User] VM migrates then locks up

[Michael Rasmussen]

On Fri, 10 Feb 2017 13:17:55 -0600
Gerald Brandt <g...@majentis.com> wrote:

> No change. Migration from the Xeon system to the AMD works just fine.
> 
This was an issue way back which perhaps has reemerged from the big
void.

Please provide:

From both proxmox nodes and from the VM (if it is Linux):
lscpu

If VM is *BSD: dmesg -a |grep -i features

If VM is Windows ask somebody else.

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Re: [PVE-User] VM migrates then locks up

[Michael Rasmussen]

On Fri, 10 Feb 2017 12:16:07 -0600
Gerald Brandt <g...@majentis.com> wrote:

> 
> No errors on migration and processor type is KVM 64
> 
Try qemu 64 instead.

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Re: [PVE-User] OOM Killer problem

[Michael Rasmussen]

Latest pve kernel has a fix for a serious oom killer bug. I would try upgrading 
your kernel before anything else.

On February 4, 2017 3:16:05 PM GMT+01:00, Michele Bonera  
wrote:
>On 04/02/2017 12:35, Alwin Antreich wrote:
>
>> Hi Michele,
>>
>> On 02/04/2017 10:44 AM, Michele Bonera wrote:
>>> Hi.
>>>
>>> I have an issue with OOM Killer (Proxmox 4.4-5 - Kernel
>4.4.35-1-pve) on
>>> my infrastructure: even if there is a lot of free memory (15GB used
>over
>>> 32GB available), OOM Killer is still killing my VM processes.
>>
>> Are you over committing your machines?
>
>Not at all: the total amount of RAM assigned to the VMs running on this
>
>node is 12GB (and the host has 32GB).
>
>> Another consideration could be NUMA, if one node runs out of memory
>the
>> kernel might also kill processes.
>
>This is plausible. I'll do some checks... Thanks for the hint.
>
>>> This morning I had 3 over 6 VM powered down because OOM Killer
>decided
>>> to kill the related processes even if there were a lot of free
>memory.
>>>
>>>   total   used   free sharedbuffers cached
>>> Mem:  32725572   32286280 439292 1964283772084  
>18648708
>>> -/+:   9865488   22860084
>>> Swap:  1499124  337361465388
>>
>> It could also be possible that your swap space can't be utilized
>> properly due to your workload.
>
>I exclude this: the cpu utilization rarely exceed 20%
>
>Bye
>-- 
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Re: [PVE-User] One cluster at two sites with an even number of nodes

[Michael Rasmussen]

On Mon, 30 Jan 2017 17:48:48 +
"Marco M. Gabriel" <marcomgabr...@gmail.com> wrote:

> 
> Any other hints maybe? Or is this a no go?
> 
It is possible but the costs is high. 300,000-400,000 € hardware at each
datacenter (Virtual cluster, infrastructure, and SAN). Our computer
facilities supports 30,000 users.

At work we have two datacenters, actually three, on campus which is all
interconnected with dual 10 Gb fibers. The clusters remains at the two
datacenters while the central switch center using the Cisco phone
system cluster acts as witness for the other two datacenters.

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Re: [PVE-User] software RAID in 4.2

[Michael Rasmussen]

On Mon, 23 Jan 2017 19:02:22 +0100
Mehmet <prox...@elchaka.de> wrote:

> For datasafety i would not disable Barrier!
>  But do you mean realy write Performance? As i know hdparm is used for read 
> Performance...
> 
For what reason should barrier not be disabled? Barrier is disabled on
ext3 by default so I guess this means you manually add barrier=1 to
all your ext3 mount points?

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Re: [PVE-User] software RAID in 4.2

[Michael Rasmussen]

On Mon, 23 Jan 2017 18:34:11 +0100
Miguel González <miguel_3_gonza...@yahoo.es> wrote:

> Considering hdparm reports same speed for the underlying disk and the
> soft raid seems some settings that need to be set. I´m asking here just
> to be safe in terms of proxmox and not to be too aggressive. My
> impression is that with ext3 I got better performance.
> 
You can achieve the same performance and security level with ext4 as
you did with ext3 by using this mount option: barrier=0

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Re: [PVE-User] Cross datacenter HA

[Michael Rasmussen]

On Thu, 29 Dec 2016 11:23:49 +0100
Emmanuel Kasper <e.kas...@proxmox.com> wrote:

> You could also set up HA beween your two DCs at the application level,
> for instance using a bunch of stateless applications servers connecting
> to a DB, where you want only need to setup HA at the DB level (Hint:
> streaming replication if using PostgreSQL)
A word of caution. If you use Postgres streaming replication in
synchronous mode you must have at least 2 slaves since a write in
this mode requires minimum 2 commits to finish so if you only have one
slave then your cluster will hang if the slave or the master is down
which effectively means you have a single point of failure. Adding an
extra slave makes you resilient to one node down.

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Re: [PVE-User] ZFS on iSCSI + Pacemaker/corosync/DRBD

[Michael Rasmussen]

On Wed, 23 Nov 2016 09:40:55 +
Mark Adams <m...@openvs.co.uk> wrote:

> 
> Has anyone else tried to get this or a similar setup working? Any views
> greatly received.
> 
What you are trying to achieve is not a good idea with
corosync/pacemaker since iSCSI is a block device. To create a cluster
over a LUN will require a cluster aware filesystem like NFS, CIFS etc.
The proper way of doing this with iSCSI would be using multipath to a
SAN since iSCSI LUNs cannot be shared. Unfortunately the current
implementation of ZFS over iSCSI does not support multipath (a
limitation in libiscsi). Also may I remind you that Iet development has
stopped in favor of LIO targets (http://linux-iscsi.org/wiki/LIO). I am
currently working on making an implementation of LIO for proxmox which
will use a different architecture than the current ZFS over iSCSI
implementation. The new implementation will support multipath. As this
is developed in my spare time progress is not a high as it could be.

Alternatively you could look at this:
http://www.napp-it.org/doc/downloads/z-raid.pdf

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Re: [PVE-User] Cluster disaster

[Michael Rasmussen]

On Tue, 22 Nov 2016 18:04:39 +
Dhaussy Alexandre <adhau...@voyages-sncf.com> wrote:

> Le 22/11/2016 à 18:48, Michael Rasmussen a écrit :
> > Have you tested your filter rules?  
> Yes, i set this filter at install :
> 
> global_filter = [ "r|sd[b-z].*|", "r|disk|", "r|dm-.*|", 
> "r|vm.*disk.*|", "r|/dev/zd.*|", "r|/dev/mapper/pve-.*|", "a|.*|" ]
> 
Does vgscan and lvscan list the expected?

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Re: [PVE-User] Cluster disaster

[Michael Rasmussen]

Have you tested your filter rules?

On November 22, 2016 6:12:27 PM GMT+01:00, Dhaussy Alexandre 
<adhau...@voyages-sncf.com> wrote:
>
>Le 22/11/2016 à 17:56, Michael Rasmussen a écrit :
>> On Tue, 22 Nov 2016 16:35:08 +
>> Dhaussy Alexandre <adhau...@voyages-sncf.com> wrote:
>>
>>> I don't know how, but i feel that every node i add to the cluster
>currently slows down LVM scan a little more...until it ends up
>interfering with cluster services at boot...
>> Maybe you need to tune the filter rules in /etc/lvm/lvm.conf.
>
>Yep, i already tuned filters in lvm config, before that i had
>"duplicate 
>PVs' messages because of multipath devices.
>Anyway if i'm not wrong, LVM still has a lot of LVs to activate at
>boot.
>
>nov. 22 02:16:21 proxmoxt34 lvm[7279]: 1644 logical volume(s) in volume
>
>group "T_proxmox_1" now active
>nov. 22 02:16:21 proxmoxt34 lvm[7279]: 2 logical volume(s) in volume 
>group "proxmoxt34-vg" now active
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Re: [PVE-User] Cluster disaster

[Michael Rasmussen]

On Tue, 22 Nov 2016 16:35:08 +
Dhaussy Alexandre <adhau...@voyages-sncf.com> wrote:

> 
> I don't know how, but i feel that every node i add to the cluster currently 
> slows down LVM scan a little more...until it ends up interfering with cluster 
> services at boot...
Maybe you need to tune the filter rules in /etc/lvm/lvm.conf.

My own rules as an inspiration:
# Do not scan ZFS zvols (to avoid problems on ZFS zvols snapshots)
global_filter = [ "r|/dev/zd.*|", "r|/dev/mapper/pve-.*|" ]

# Only scan for volumes on local disk and on iSCSI target from Qnap NAS. 
Block scanning from all
# other block devices.
filter = [ "a|ata-OCZ-AGILITY3_OCZ-QMZN8K4967DA9NGO.*|", 
"a|scsi-36001405e38e9f02ddef9d4573db7a0d0|", "r|.*|" ]


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Re: [PVE-User] Cluster disaster

[Michael Rasmussen]

A long shot. Do you have a hardware watchdog enabled in bios?

On November 11, 2016 4:28:09 PM GMT+01:00, Dhaussy Alexandre 
 wrote:
>> Do you have a hint why there is no messages in the logs when watchdog
>> actually seems to trigger fencing ?
>> Because when a node suddently reboots, i can't be sure if it's the
>watchdog,
>> a hardware bug, kernel bug or whatever..
>
>Responding to myself, i find this interesting :
>
>Nov  8 10:39:01 proxmoxt35 corosync[35250]:  [TOTEM ] A new membership
>(10.xx.xx.11:684) was formed. Members joined: 13
>Nov  8 10:39:58 proxmoxt35 watchdog-mux[28239]: client watchdog expired
>- disable watchdog updates
>
>Nov  8 10:39:01 proxmoxt31 corosync[23483]:  [TOTEM ] A new membership
>(10.xx.xx.11:684) was formed. Members joined: 13
>Nov  8 10:40:01 proxmoxt31 watchdog-mux[22395]: client watchdog expired
>- disable watchdog updates
>
>Nov  8 10:39:01 proxmoxt30 corosync[24634]:  [TOTEM ] A new membership
>(10.xx.xx.11:684) was formed. Members joined: 13
>Nov  8 10:40:00 proxmoxt30 watchdog-mux[23492]: client watchdog expired
>- disable watchdog updates
>
>
>Nov  9 10:05:41 proxmoxt20 corosync[42543]:  [TOTEM ] A new membership
>(10.xx.xx.11:796) was formed. Members left: 7
>Nov  9 10:05:46 proxmoxt20 corosync[42543]:  [TOTEM ] A new membership
>(10.xx.xx.11:800) was formed. Members joined: 7
>Nov  9 10:06:42 proxmoxt20 watchdog-mux[41401]: client watchdog expired
>- disable watchdog updates
>
>Nov  9 10:05:41 proxmoxt21 corosync[16184]:  [TOTEM ] A new membership
>(10.xx.xx.11:796) was formed. Members left: 7
>Nov  9 10:05:46 proxmoxt21 corosync[16184]:  [TOTEM ] A new membership
>(10.xx.xx.11:800) was formed. Members joined: 7
>Nov  9 10:06:42 proxmoxt21 watchdog-mux[42853]: client watchdog expired
>- disable watchdog updates
>
>Nov  9 10:05:41 proxmoxt30 corosync[16159]:  [TOTEM ] A new membership
>(10.xx.xx.11:796) was formed. Members left: 7
>Nov  9 10:05:46 proxmoxt30 corosync[16159]:  [TOTEM ] A new membership
>(10.xx.xx.11:800) was formed. Members joined: 7
>Nov  9 10:06:42 proxmoxt30 watchdog-mux[43148]: client watchdog expired
>- disable watchdog updates
>
>Nov  9 10:05:41 proxmoxt31 corosync[16297]:  [TOTEM ] A new membership
>(10.xx.xx.11:796) was formed. Members left: 7
>Nov  9 10:05:46 proxmoxt31 corosync[16297]:  [TOTEM ] A new membership
>(10.xx.xx.11:800) was formed. Members joined: 7
>Nov  9 10:06:42 proxmoxt31 watchdog-mux[42761]: client watchdog expired
>- disable watchdog updates
>
>Nov  9 10:05:41 proxmoxt34 corosync[41330]:  [TOTEM ] A new membership
>(10.xx.xx.11:796) was formed. Members left: 7
>Nov  9 10:05:46 proxmoxt34 corosync[41330]:  [TOTEM ] A new membership
>(10.xx.xx.11:800) was formed. Members joined: 7
>Nov  9 10:06:42 proxmoxt34 watchdog-mux[40262]: client watchdog expired
>- disable watchdog updates
>
>Nov  9 10:05:41 proxmoxt35 corosync[16158]:  [TOTEM ] A new membership
>(10.xx.xx.11:796) was formed. Members left: 7
>Nov  9 10:05:46 proxmoxt35 corosync[16158]:  [TOTEM ] A new membership
>(10.xx.xx.11:800) was formed. Members joined: 7
>Nov  9 10:06:42 proxmoxt35 watchdog-mux[42684]: client watchdog expired
>- disable watchdog updates
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Re: [PVE-User] Safe remove node from cluster...

[Michael Rasmussen]

On Tue, 8 Nov 2016 14:18:58 -0200
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> I need migrate one single VM to Promox 4.2.
> Proxmox 4.2 already has a GlusterFS storage.
> I already set this storage to Proxmox 4.3 and I am able to move disk from
> PVE 4.3 to PVE4.2, but I need migrate the running VM from PVE 4.3 to PVE
> 4.2.
> 
AFAIK this is not possible since pve 4.2 uses an older version of qemu.

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Re: [PVE-User] VM (linux, debian) does not shutdown... ACPI?

[Michael Rasmussen]

acpi-support-base is sufficient.

On November 3, 2016 3:53:33 PM GMT+01:00, Karsten Becker 
 wrote:
>Hi,
>
>I also got this prob when setting up our new Jessie based VMs... the
>solution is simple.
>
>The package acpid on Debian just installs the daemon. But not the
>scripts/mechanic, that detects for example a power button press.
>
>Installing the package acpi-support fixed that.
>
>Regards from Berlin
>Karsten
>
>On 03.11.2016 15:37, Marco Gaiarin wrote:
>> 
>> I've googled into forum, but all hint are roughly 'install acpid'.
>> 
>> I've a VM, debian wheezy amd64, that does not shut down, eg if i shut
>down
>> the node or do an explicit shutdown for that VM, does nothing.
>> 
>>  invernomuto:~# dpkg -l | grep acpi
>>  ii  acpid  
>1:2.0.16-1+deb7u1 amd64Advanced Configuration
>and Power Interface event daemon
>>  invernomuto:~# ps aux | grep [a]cpid
>>  root  2207  0.0  0.0   4124   564 ?Ss   nov02   0:00
>/usr/sbin/acpid
>> 
>> Clearly, if i logon to 'invernomuto' and explicit do a 'poweroff' or
>> 'reboot', the machine stop/reboot.
>> 
>> What i'm missing?
>
>
>Ecologic Institut gemeinnuetzige GmbH
>Pfalzburger Str. 43/44, D-10717 Berlin
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Re: [PVE-User] OVS Bonds

[Michael Rasmussen]

On Sun, 30 Oct 2016 08:21:34 +1000
Lindsay Mathieson <lindsay.mathie...@gmail.com> wrote:

> Any particular reason why the webui only supports active-backup, balance-slb 
> and balance-tcp bonds?
> 
> 
AFAIK these are the bonding modes available in OVS bonds.

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Re: [PVE-User] Help for new server

[Michael Rasmussen]

On Wed, 26 Oct 2016 18:11:03 +0200
Info  --  Asistar srl <i...@asistar.it> wrote:

> thanks for the reply.
> I buy the model DL380 Gen9 E5-2620V4 with 64Gb RAM
Remember ECC RAM.

> I also need the battery for smart arrays?
> 
If you do not plan to use ZFS, which sort of nullifies the use of a
RAID controller, then yes. If you care for your data a BBU is
absolutely vital and will give you a noticeable performance boost.

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Re: [PVE-User] Promox 4.3 cluster issue

[Michael Rasmussen]

Is it possible to switch to 802.3ad bond mode?

On October 26, 2016 11:12:06 AM GMT+02:00, "Szabolcs F."  
wrote:
>Hi Lutz,
>
>my bondXX files look like this: http://pastebin.com/GX8x3ZaN
>and my corosync.conf : http://pastebin.com/2ss0AAEr
>
>Mutlicast is enabled on my switches.
>
>The problem is I don't have a way to to replicate the problem, it seems
>to
>happen randomly, so I'm unsure how to do more tests. At the moment my
>cluster is working fine for about 16 hours. Any ideas forcing the
>issue?
>
>Thanks,
>Szabolcs
>
>On Wed, Oct 26, 2016 at 9:17 AM, Lutz Willek
>
>wrote:
>
>> Am 24.10.2016 um 15:16 schrieb Szabolcs F.:
>>
>>> Corosync has a lot of these in the /var/logs/daemon.log :
>>> http://pastebin.com/ajhE8Rb9
>>>
>>
>> please carefully check your (node/switch/multicast) network
>configuration,
>> and please paste your corosync configuration file and output of
>> /proc/net/bonding/bondXX
>>
>> just a guess:
>>
>> * powerdown 1/3 - 1/2 of your nodes, adjust quorum (pvecm expect)
>>   --> Problems still occours?
>>
>> * during "problem time"
>>   --> omping is still ok?
>>
>> https://pve.proxmox.com/wiki/Troubleshooting_multicast,_quor
>> um_and_cluster_issues
>>
>>
>> Freundliche Grüße / Best Regards
>>
>>  Lutz Willek
>>
>> --
>> creating IT solutions
>> Lutz Willek science + computing ag
>> Senior Systems Engineer Geschäftsstelle Berlin
>> IT Services Berlin  Friedrichstraße 187
>> phone +49(0)30 2007697-21   10117 Berlin, Germany
>> fax   +49(0)30 2007697-11   http://de.atos.net/sc
>>
>> S/MIME-Sicherheit:
>> http://www.science-computing.de/cacert.crt
>> http://www.science-computing.de/cacert-sha512.crt
>>
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Re: [PVE-User] kernel: Neighbour table overflow.

[Michael Rasmussen]

On Sat, 22 Oct 2016 13:28:06 +0200
"sebast...@debianfan.de" <sebast...@debianfan.de> wrote:

> 
> What's up now ?
> 
Read this from CheckPoint support:
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails==sk43772

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Re: [PVE-User] Feedback wanted - Cluster Dashboard

[Michael Rasmussen]

On Tue, 18 Oct 2016 12:41:25 +0200
Kevin Lemonnier <lemonni...@ulrar.net> wrote:

> 
> I had not considered network bandwith, that would indeed be interesting .. 
> Seems a bit less
> easy to do though, cpu and ram are the big things I think, at least ar first.
> 
But if using network backed storage you could still have lots of free
CPU and RAM but still see VM's running in slow motion due to network
congestion. 

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Re: [PVE-User] Feedback wanted - Cluster Dashboard

[Michael Rasmussen]

On Mon, 17 Oct 2016 15:58:35 +0200
Dominik Csapak <d.csa...@proxmox.com> wrote:

> so cpu is the node average
Why average on not total? If this is supposed to be a cluster wide
dashboard average gives no mening.

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Re: [PVE-User] Feedback wanted - Cluster Dashboard

[Michael Rasmussen]

On Mon, 17 Oct 2016 16:17:48 +0200
Michael Rasmussen <m...@miras.org> wrote:

> I would say 5 out of 6 cores is in use so 83,33 % CPU usage in the
> cluster.
> 
Forgot to mention: For people coming from VmWare this makes sense since
that is how vSphere cluster client displays it.

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Re: [PVE-User] Feedback wanted - Cluster Dashboard

[Michael Rasmussen]

On Mon, 17 Oct 2016 16:14:37 +0200
Dominik Csapak <d.csa...@proxmox.com> wrote:

> On 10/17/2016 04:04 PM, Michael Rasmussen wrote:
> > On Mon, 17 Oct 2016 15:58:35 +0200
> > Dominik Csapak <d.csa...@proxmox.com> wrote:
> >  
> >> so cpu is the node average  
> > Why average on not total? If this is supposed to be a cluster wide
> > dashboard average gives no mening.
> >  
> 
> i agree, but with cpu usage it is not so easy
> 
> for example:
> 
> if you have 1 node with 50% usage and 2 cores
> and 1 with 100% usage and 4 cores
> 
> what would you display here?
> 
I would say 5 out of 6 cores is in use so 83,33 % CPU usage in the
cluster.

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Re: [PVE-User] HA question

[Michael Rasmussen]

On Wed, 5 Oct 2016 17:35:28 +0200
Michael Rasmussen <m...@miras.org> wrote:

> My biggest issue with the current functionality is that I sometimes
> forgets a VM is HA enabled so pressing 'Shutdown' to be able to do
> maintenance has the unwanted side effect of a reboot. Maybe the
> shutdown and stop button could be configurable in cluster.cfg defaulting
> to current functionality with the option of having:
> shutdown: HA-stop -> shutdown
> stop: HA-stop -> stop
> 
Added to the bug report.

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Re: [PVE-User] HA question

[Michael Rasmussen]

On Wed, 5 Oct 2016 17:17:22 +0200
Thomas Lamprecht <t.lampre...@proxmox.com> wrote:

> 
> We can pick it up again, if someone is willing to open a bug report at
> https://bugzilla.proxmox.com/ to help me track this issue would be great.
> I can do it too myself tomorrow..
> As changing the behaviour between releases seems not that good, we have
> a) postpone it to 5.0
> b) find another way for now.
> 
My biggest issue with the current functionality is that I sometimes
forgets a VM is HA enabled so pressing 'Shutdown' to be able to do
maintenance has the unwanted side effect of a reboot. Maybe the
shutdown and stop button could be configurable in cluster.cfg defaulting
to current functionality with the option of having:
shutdown: HA-stop -> shutdown
stop: HA-stop -> stop

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Re: [PVE-User] HA question

[Michael Rasmussen]

On Wed, 5 Oct 2016 17:01:23 +0200
Thomas Lamprecht <t.lampre...@proxmox.com> wrote:

> 
> Our reason for this is that a HA enabled service should be *cleanly* shutdown.
> Stopping a VM is like pulling the power cord out, which can be bad :)
> We can re evaluate that. For us HA managed service are thought for service
> which have to run and do that always.
> "Killing" them often seems not very highly available, gracefully shutting them
> down for maintenance or such things seems more correct, or am I missing
> something here?
I think the issue here is that 'Stop' and 'Shutdown' behaves
differently whether used on a HA enabled VM or not.

For a non-HA:
Shutdown: Clean shutdown
Stop: Unclean shutdown

For a HA:
Shutdown: Reboot
Stop: Clean shutdown

So either non-HA misses the reboot option or the HA misses the unclean
shutdown option.

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Re: [PVE-User] Proxmox 4.2 : Online Migration Successful but VM stops

[Michael Rasmussen]

On Fri, 30 Sep 2016 16:28:19 +0200
Kevin Lemonnier <lemonni...@ulrar.net> wrote:

> Hi,
> 
> Firstly thanks, I had no idea that existed. I've been hoping for memory 
> hotplug in proxmox for months,
> if not years, and was starting to get very surprised that this feature didn't 
> exist. Turns out it does,
> for some reason it's just hidden.
> 
The reason it is hidden is because it is not stable yet.

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Re: [PVE-User] NFS storage issues

[Michael Rasmussen]

On Tue, 27 Sep 2016 17:00:07 +0200
Eneko Lacunza <elacu...@binovo.es> wrote:

> Hi all,
> 
> In the process of configuring a NFS storage on a PVE 4.2 server, I'm having 
> issues.
> 
> NFS server is firewalled, and only TCP port 2049 (NFS) is open.
> 
> I can mount the export from command line with "mount", but Proxmox NFS 
> storage is unable to mount, because is seems to do some kind of "pvesm 
> nfsscan" and needs working rpcbind and friends.
> 
Maybe your Proxmox is configured to use NFSv3. Using port 2049 is for
NFSv4. You can simply add ver=4 under your storage configuration in
storage.cfg

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Re: [PVE-User] storpool

[Michael Rasmussen]

Omniti.com offers enterprise support for Omnios.

On September 15, 2016 12:24:23 PM GMT+02:00, Dimitris Beletsiotis 
 wrote:
>I am aware of a cloud provider that is using storpool and has 
>encountered a lot of problems with storage availability resulting in 
>downtimes.
>
>For stable zfs box/appliance look at Omnios+Napp-it for free or look at
>
>nexenta if you need enterprise product and support.
>
>Regards,
>Dimitris
>
>On 15-Sep-16 13:07, admin-at-extremeshok-dot-com wrote:
>> 
>>
>> StorPool Other Integrations: CloudStack, LVM, Docker, LXC, libvirt,
>Proxmox
>> StorPool is compatible with almost all technologies in the Linux
>stack,
>> including CloudStack, LVM, Docker, LXC, libvirt, Proxmox, to name the
>> more common. If you run any of these systems and would like to
>benefit
>> from the performance, scalability and reliability of StorPool, do not
>> hesitate to contact us to explore this opportunity.
>>
>> 
>>
>> As to the us$17,000 license fees ... hahahaha.
>>
>>   __.https://eXtremeSHOK.com
>.__
>>
>> On 15-Sep-16 2:55 AM, Jean R. Franco wrote:
>>> I looked and I'm not considering.
>>>
>>> Are they nuts?
>>>
>>> Check Ceph.
>>>
>>> Best regards,
>>>
>>> Jean Franco
>>>
>>> - Mensagem original -
>>> De: "Brian ::" 
>>> Para: "PVE User List" 
>>> Enviadas: Quarta-feira, 14 de setembro de 2016 18:07:23
>>> Assunto: [PVE-User] storpool
>>>
>>> Anyone looked at it or considered using it with Proxmox?
>>>
>>>
>>> https://storpool.com/
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Re: [PVE-User] TASK ERROR: host NUMA node1 doesn't exist when starting

[Michael Rasmussen]

On Thu, 8 Sep 2016 10:10:47 -0500
Hexis <lists@hexis.consulting> wrote:

> Apparently it does! Thanks. What exactly does that do?
> 
https://en.wikipedia.org/wiki/Non-uniform_memory_access 

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Re: [PVE-User] TASK ERROR: host NUMA node1 doesn't exist when starting

[Michael Rasmussen]

Does unchecking numa support in the vm help?

On September 8, 2016 4:41:03 PM GMT+02:00, Hexis  wrote:
>I have had a Linux Mint VM running on ProxMox VE for about 4 months,
>for 
>the past 2 months it has been powered down and not in use. A couple of 
>updates later I tried to power it on today and I get the error: "TASK 
>ERROR: host NUMA node1 doesn't exist" and the boot fails.
>
>Has anyone else encountered this issue?
>
>Thanks,
>
>Hexis
>
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Re: [PVE-User] scsi0 boot OK, scsi1 boot NOK

[Michael Rasmussen]

On Tue, 26 Jul 2016 23:42:10 +0200
Florent B <flor...@coppint.com> wrote:

> 
> Is it expected ?
> 
For Windows it is.

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Re: [PVE-User] PVE 4.2 and 802.3ad bonding

[Michael Rasmussen]

On Wed, 6 Jul 2016 05:12:58 -0300
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> hum... I miss this part too... Why create a bridge over a bond???
> 
That is the preferred way in Proxmox.

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Re: [PVE-User] PVE 4.2 and 802.3ad bonding

[Michael Rasmussen]

On Tue, 5 Jul 2016 16:30:44 -0300
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> - PVE 4.2:
> 
> auto eth1
> iface eth1 inet manual
> bond-master bond0
> 
> auto eth2
>  iface eth2 inet manual
>  bond-master bond0
> 
> auto eth3
>  iface eth3 inet manual
>  bond-master bond0
> 
> auto bond0
>  iface bond0 inet static
>  address 10.0.0.100
>  netmask 255.255.255.0
>  bond-mode 802.3ad
>  bond-miimon 100
>  bond-downdelay 200
>  bond-updelay 200
>  bond-slaves none
> 
> 
A bond in Debian is configured differently that Ubuntu. Try this
instead:

auto eth1
iface eth1 inet manual

auto eth2
iface eth2 inet manual

auto eth3
iface eth3 inet manual

auto bond0
iface bond0 inet static
  slaves eth1 eth2 eth3
  address 10.0.0.100
  netmask 255.255.255.0
  bond-mode 802.3ad
  bond-miimon 100
  bond-downdelay 200
  bond-updelay 200

PS. it is a bad design to assign an address directly to the bond.
Instead create bridges over this bond and assign addresses to the
bridges.


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Re: [PVE-User] vm's disk io lower with local highspeed disk?

[Michael Rasmussen]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

Your test is completely useless. It does not proof anything.

On June 17, 2016 9:06:45 AM GMT+02:00, haoyun  wrote:
>First of all,thank you for answering.
>the result is : it is not vm's problem,it is raid card problem,raid
>card without cache.
>I test again ,the data as below:
>dd if=/dev/zero of=dd.img bs=1M count=2000
>-
>use single thread:
>/root/fio -filename=/mnt/dd.img -direct=1 -iodepth 1 -thread
>-rw=randwrite -ioengine=psync -bs=16k -size=1G -numjobs=1 -runtime=60
>-group_reporting -name=mytest
>R330(H330 0MB-cache,SAS 10K 600G * 6, Raid-10)  : bw=3028.7KB/s,
>iops=189
>NX3200 (H710 Mini 512MB-cache,SAS 7.2K 4T * 10,Raid-5) : bw=14555KB/s,
>iops=909
>MD3200i (2GB-cache,SAS 15K 600G * 12 ,Raid-5) : bw=24120KB/s, iops=1507
>R710 (PERC 6/i Integrated RAID Controller 256MB-cache,SAS 15K 600G * 2,
>Raid-1) : bw=16183KB/s, iops=1011
>R410 (SAS 6/iR Integrated Controller 0MB-cache,SAS 15K 300G * 2,Raid-1)
>: bw=3397.6KB/s, iops=212
>
>
>
>
>
>At 2016-06-15 12:22:35, "Alexandre DERUMIER" 
>wrote:
>>raid10 is physical host's Raid-10 with 6 disks(SAS 10k 600G)
>>
>>
local-highspeed is LogicalVolume on Raid-10
>>
>>lvm volume ?  classic lvm or thin lvm ?
>>
>>
raid10 is physical host's Raid-10 with 6 disks(SAS 10k 600G)
"do you have cache on your raid controller ?" I don't know what's
>means?
>>
>>Well, generally (for hdd mainly), hardware raid controller have memory
>to handle writes fast, then flush them to disk.
>>what is your model ?
>>
>>
>>
fio command is : ./fio -filename=/dev/vda -direct=1 -iodepth 1
>-thread -rw=randwrite -ioengine=psync -bs=16k -size=4G -numjobs=30
>-runtime=100 -group_reporting -name=mytest
>>
>>So you are doing sync write,
>>that mean that it should bypass all caches (including raid controller
>cache, disk cache) to be sure that data are correctly written to the
>disk platters.
>>
>>I'm surprised than you can reach iops=1344 with 6 SAS 10K in raid10.
>(should be 250 iops by disk , x3 because of raid10, so around 750iops).
>>
>>
>>Now, some raid hardware controller, can handle the sync writes,
>without transmit them to disk platter (They need to have a batery, or
>persistent memory).
>>Could explain why you have better performance with your san.
>>
>>
>>can you do fio benchmark with ioengin : libaio , and increase iodepth
>to 32
>>
>>./fio -filename=/dev/vda -direct=1 -iodepth 32 -rw=randwrite
>-ioengine=libaiO -bs=16k -size=4G -numjobs=30 -runtime=100
>-group_reporting -name=mytest
>>
>>
>>then compare with --sync=1 option
>>
>>./fio -filename=/dev/vda -direct=1 -iodepth 32 -thread -rw=randwrite
>-ioengine=libaiO -bs=16k -size=4G -numjobs=30 -runtime=100
>-group_reporting -name=mytest
>>
>>- Mail original -
>>De: "haoyun" 
>>À: "proxmoxve" 
>>Envoyé: Mercredi 15 Juin 2016 03:51:03
>>Objet: Re: [PVE-User] vm's disk io lower with local highspeed disk?
>>
>>fio command is : ./fio -filename=/dev/vda -direct=1 -iodepth 1 -thread
>-rw=randwrite -ioengine=psync -bs=16k -size=4G -numjobs=30 -runtime=100
>-group_reporting -name=mytest
>>
>>
>>vmconfig:
>>balloon: 1024
>>bootdisk: virtio2
>>cores: 2
>>ide2: none,media=cdrom
>>memory: 4096
>>name: tt
>>net0: bridge=vmbr0,e1000=66:37:31:32:34:37
>>numa: 0
>>ostype: l26
>>smbios1: uuid=ce775a6f-6652-43c4-aa92-69ffd3d20013
>>sockets: 1
>>virtio0: local-highspeed:vm-255-disk-2,size=60G
>>virtio2: local-highspeed:vm-255-disk-1,size=8G
>>
>>
>>raid10 is physical host's Raid-10 with 6 disks(SAS 10k 600G)
>>
>>
>>local-highspeed is LogicalVolume on Raid-10
>>
>>"do you have cache on your raid controller ?" I don't know what's
>means?
>>
>>
>>
>>At 2016-06-14 17:59:17, "Alexandre DERUMIER" 
>wrote:
>Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await
>svctm %util
>vda 0.00 71.00 8.00 226.00 64.00 2368.00 10.39 1.37 5.85 4.24 99.10
>
>but I test disk random write is better with fio tools,
>bw=21518KB/s iops=1344
>>>
>>>
>>>do you have cache on your raid controller ?
>>>
>>>can you send the fio job config?
>>>
>>>can you send vmconfig ?
>>>
>>>what is the local raid10 filesystem ?
>>>
>>>
>>>
>>>
>>>- Mail original -
>>>De: "haoyun" 
>>>À: "proxmoxve" 
>>>Envoyé: Mardi 14 Juin 2016 07:53:29
>>>Objet: [PVE-User] vm's disk io lower with local highspeed disk?
>>>
>>>hello everyone~
>>>
>>>
>>>I have a problem,
>>>I have a new host is Dell R330,
>>>run pve4.2 os
>>>disk with 2 raid,one is raid1,another is raid10(sas 10k 600G * 6)
>>>raid1 as system disk,raid10 as vm images
>>>my mysql slave run on this vm with raid10 local disk(lvm).
>>>the question is this vm's disk io is very slow,
>>>that's why?
>>>Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz await
>svctm %util
>>>vda 0.00 71.00 8.00 226.00 64.00 

Re: [PVE-User] Containers and DHCP

[Michael Rasmussen]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512

Have you tried changing the MAC?

On May 27, 2016 9:03:48 AM GMT+02:00, Lindsay Mathieson 
 wrote:
>On 27 May 2016 at 00:56, Alwin Antreich 
>wrote:
>> may you please post your CT config, as I use the debian8 proxmox
>templates without these issues?
>
>
>arch: amd64
>cpulimit: 1
>cpuunits: 1024
>hostname: ctest0
>memory: 512
>net0: name=eth0,bridge=vmbr0,hwaddr=66:38:30:64:31:64,ip=dhcp,type=veth
>ostype: debian
>rootfs: volume=gtest:subvol-920-disk-1,size=8G
>swap: 512
>
>
>debian 8.4 has come up once, after a few minutes delay. It had no ip
>on the network, which I think also indicates dhcp issues. Haven't been
>able to get it up again since though.
>
>thanks,
>
>--
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Re: [PVE-User] run vm in two physical machine with the same disk image

[Michael Rasmussen]

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Split brain. Do you use two_node option in corosync?

On May 23, 2016 5:24:45 AM GMT+02:00, haoyun  wrote:
>hello everyone~
>my pve cluster with shared storage,
>I run a vm in this physical machine,and I active this volumes in
>another physical machine and run the same vm,
>I don't know what happend,
>I has been tested,found they can run at the same time and VMs's data
>different,
>why？
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Re: [PVE-User] delnode not possible

[Michael Rasmussen]

On Sun, 22 May 2016 16:16:29 +0200
Daniel Eschner <dan...@linux-nerd.de> wrote:

> Is that correct?
> 
> root@host01:~# omping host02
> omping: Can't find local address in arguments
> 
> when i omping host01 it works
> 
> host01 : waiting for response msg
> host01 : joined (S,G) = (*, 232.43.211.234), pinging
> host01 :   unicast, seq=1, size=69 bytes, dist=0, time=0.006ms
> host01 : multicast, seq=1, size=69 bytes, dist=0, time=0.010ms
> host01 :   unicast, seq=2, size=69 bytes, dist=0, time=0.017ms
> host01 : multicast, seq=2, size=69 bytes, dist=0, time=0.020ms
> 
Is /etc/hosts identical on all nodes?

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Re: [PVE-User] delnode not possible

[Michael Rasmussen]

On Sun, 22 May 2016 15:57:32 +0200
Daniel Eschner <dan...@linux-nerd.de> wrote:

> 
> Its a typical Nework design without VLANs an so on. Just a Simple Switch 
> where the Servers are connected.
> Nothink special. After a couple if minutes its running. Realy strange.
Brand and model of the switch?

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Re: [PVE-User] delnode not possible

[Michael Rasmussen]

On Sun, 22 May 2016 15:47:59 +0200
Daniel Eschner <dan...@linux-nerd.de> wrote:

> Mhh 
> 
> have corosync problem with bonding maybe?
> 
Looks more like multicast problem to me.

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Re: [PVE-User] delnode not possible

[Michael Rasmussen]

On Sun, 22 May 2016 14:20:23 +0200
Daniel Eschner <dan...@linux-nerd.de> wrote:

> Hope yes ;)
> 
> Just one Node of 10 Nodes making trouble :-(
> Is there anyway to test it easily?
> 
https://pve.proxmox.com/wiki/Troubleshooting_multicast,_quorum_and_cluster_issues

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Re: [PVE-User] PVE 4.2 Kernel 4.4.6-1 and USB3

[Michael Rasmussen]

On Tue, 17 May 2016 17:55:25 +0200
Eneko Lacunza <elacu...@binovo.es> wrote:

> 
> We're having trouble connecting a SATA to USB3 dock with kernel 4.4.6-1 . 
> Details:
> 
Is it a USB 3.1 device?

USB 3.1 is first supported from kernel 4.6.

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Re: [PVE-User] VLAN and 4.2 upgrade

[Michael Rasmussen]

On Fri, 6 May 2016 09:22:56 -0500
Adam Thompson <athom...@athompso.net> wrote:

> Has this bug (http://openvswitch.org/pipermail/discuss/2015-July/018242.html) 
> ever been found & fixed?
> If not, using OVS in this scenario will still break your cluster horribly.
> It causes no problem whatsoever with a single non-clustered host.
> Also, AFAIK, OVS *still* doesn't implement an IGMP querier, so if you were 
> relying on the Linux Bridge IGMP querier (like I am), you're screwed there, 
> too.  (My switches support IGMP snooping, but my router doesn't have an IGMP 
> querier.)
> 
What kind of switch do you have?


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Re: [PVE-User] HP MSA 1040 SAN, multipath and LVM... (PGP Inline)

[Michael Rasmussen]

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On Wed, 4 May 2016 16:22:06 +0200
Marco Gaiarin <g...@sv.lnf.it> wrote:

> 2) i've not found a way to setup correctly the volume to accept .qcow
>  disks, eg i've followed:
> 
>   
> http://pve.proxmox.com/wiki/Storage_Model#LVM_Groups_with_Network_Backing
> 
> but the volumes created accept only RAW disk format.
> 
> There's some way to make a iSCSI target accept other format?
> 
qcow format requires a filesystem below and since iscsi is a raw block
device you cannot create qcow files directly on the target. If you want
be to able to make both raw and qcow disk formats your option is to
export two targets from your san. One target is used for lvm-raw disks
and on the other target you create a filesystem for qcow based disks.
Only downside to this is that you cannot use such a disk for shared
storage (the storage will be treated as a local disk on the proxmox
host).

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Re: [PVE-User] HP MSA 1040 SAN, multipath and LVM... (PGP MIME)

[Michael Rasmussen]

On Wed, 4 May 2016 16:22:06 +0200
Marco Gaiarin <g...@sv.lnf.it> wrote:

> 2) i've not found a way to setup correctly the volume to accept .qcow
>  disks, eg i've followed:
> 
>   
> http://pve.proxmox.com/wiki/Storage_Model#LVM_Groups_with_Network_Backing
> 
> but the volumes created accept only RAW disk format.
> 
> There's some way to make a iSCSI target accept other format?
> 
qcow format requires a filesystem below and since iscsi is a raw block
device you cannot create qcow files directly on the target. If you want
be to able to make both raw and qcow disk formats your option is to
export two targets from your san. One target is used for lvm-raw disks
and on the other target you create a filesystem for qcow based disks.
Only downside to this is that you cannot use such a disk for shared
storage (the storage will be treated as a local disk on the proxmox
host).

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[PVE-User] Test without digital signature

[Michael Rasmussen]

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Re: [PVE-User] Migration VM from VMWare 5 (.vmdk) to Proxmox

[Michael Rasmussen]

I would try setting disk controler in proxmox to sata.

On April 1, 2016 11:06:30 AM GMT+02:00, Edgardo Ghibaudo 
 wrote:
>Il 31/03/2016 13:43, Emmanuel Kasper ha scritto:
>> On 03/31/2016 12:39 PM, Edgardo Ghibaudo wrote:
>>> Hi Emmanuel,
>>> In VMware5, the RHEL4 guest has no VMware guest extension.
>>> I tried different SCSI controllers (VMware PVSCSI, MegaRAID SAS
>>> 8708EM2), but the VM always crash (kernel panic) with the same
>message
>>>
>>> Thank you,
>>> Edgardo
>>>
>> Hi again
>>
>> As Alessandro said this is probably a mismatch of the root device.
>>
>> Do you have your old VM running on VmWare ?
>> If yes please note there the value of the root device in
>/proc/cmdline
>> it should be something like  root=/dev/mapper/susa--vg-root
>>
>> this /dev/ something should be a path to your root file system and
>> should appear when you do
>>
>> ls -l /dev/mapper/susa--vg-root
>> lrwxrwxrwx 1 root root 7 Mar 31 09:31 /dev/mapper/susa--vg-root ->
>../dm-0
>>
>>
>>
>> Now when running the VM in Proxmox, after the error you see, you
>should
>> be dropped to a rescue shell
>>
>> in this rescue shell, check if the same 'ls -l' command return
>something
>>
>> if 'ls' returns nothing,
>>
>> tries the command vgchange -ay
>>
>> and try 'ls -l ' again
>>
>>
>> if ls still fails, please run ls -l /dev/*da in the rescue shell and
>> post the output here
>>
>>
>> BTW, it would be nice if you post your findings in the bottom of the
>> previous mails ( see https://it.wikipedia.org/wiki/Top-posting to
>know
>> why )
>>
>>
>>
>>
>>
>>
>>
>>
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>Hello Emmanuel,
>
>In the old VM running in VMware5 the /proc/cmdline is *ro
>root=/dev/sda1 
>rhgb quiet console=tty0*
>When I try to start using Knoppix7 ... I see the file system, but /dev 
>is EMPTY
>When I try to start using RHEL4 rescue, I receive the following
>message:
> It has not found any fixed disk. It is probably that the device 
>drivers must be selected manually to proceed with the installation
>
>Thank you, Edgardo
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Re: [PVE-User] VM clone with 2 disks fails on ZFS-iSCSI IET storage

[Michael Rasmussen]

On Fri, 18 Mar 2016 17:59:09 +0300
Mikhail <m...@plus-plus.su> wrote:

> 
> 
> So I guess this has something to do with IET.
> 
I have just tested with a server containing 2 disks, both
zfs-over-iscsi to a solaris server. It works as expected so I think
this is a problem with ietd.

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Re: [PVE-User] VM clone with 2 disks fails on ZFS-iSCSI IET storage

[Michael Rasmussen]

On Fri, 18 Mar 2016 18:31:10 +0300
Mikhail <m...@plus-plus.su> wrote:

> 
> So I think it is now about time to switch to old school LVM over iSCSI
> in my case, until I put some real data on this cluster..
> 
before you drop this why not try a solaris based solution?
I can recommend omnios.

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Re: [PVE-User] Proxmox VE 3.4 - Support Lifecycle

[Michael Rasmussen]

On Thu, 25 Feb 2016 17:49:04 +0100
Denys Duchier <denys.duch...@univ-orleans.fr> wrote:

> 
> due to the iSCSI bug in PVE 4.1, this is currently not a great option if
> you have one of the affected SANs (which we do).
> 
If you are talking about the iSCSI/LVM bug then a fix for this has been
found and should come to a repo near you soon;-)

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Re: [PVE-User] Proxmox ZFS over ISCSI - OmniOS Comstar

[Michael Rasmussen]

On Sat, 20 Feb 2016 16:28:10 -0200
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> Do you think that could take a long time, like 10 or 20 hours to migrate
> the disk between GlusterFS and OmnisOSBox??
> 
I would guess you should be able to transfer averagely approximately 100
MB/s. The rest is simpel math ;-)

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Re: [PVE-User] Proxmox ZFS over ISCSI - OmniOS Comstar

[Michael Rasmussen]

On Sat, 20 Feb 2016 14:49:10 -0200
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> Ok. Now I run into trouble here...
> I am able to see the iSCSI storage...
> But when I try move the disk, I get this error:
> 
> create full clone of drive virtio0 (STG-GLUSTERFS:120/vm-120-disk-1.qcow2)
> transferred: 0 bytes remaining: 268435456 bytes total: 268435456
> bytes progression: 0.00 %
> qemu-img: Could not open 'iscsi://
> 192.168.1.100/iqn.2010-09.org.napp-it:1455980233/0': iSCSI: Failed to
> connect to LUN : SENSE KEY:ILLEGAL_REQUEST(5)
> ASCQ:INVALID_OPERATION_CODE(0x2000)
> TASK ERROR: storage migration failed: copy failed: command
> '/usr/bin/qemu-img convert -t writeback -p -n -f qcow2 -O raw
> gluster://storage100/storage/images/120/vm-120-disk-1.qcow2 iscsi://
> 192.168.1.100/iqn.2010-09.org.napp-it:1455980233/0' failed: exit code 1
> 
You are stumbling into an old unresolved missing feature in qemu-img.
See this thread:
http://pve.proxmox.com/pipermail/pve-devel/2014-March/010517.html

Bottom line: You cannot use host group since qemu-img does not submit
initiator-name to libiscsi.

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Re: [PVE-User] Proxmox ZFS over ISCSI - OmniOS Comstar

[Michael Rasmussen]

On Sat, 20 Feb 2016 17:18:06 +0100
Christian Kivalo <ml+pve-u...@valo.at> wrote:

> Isn't there a way in napp-it to manage snapshots? i haven't used it so can't 
> say.
> 
'Snapshots' tab -> 'Create Datasnap'

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Re: [PVE-User] Proxmox ZFS over ISCSI - OmniOS Comstar

[Michael Rasmussen]

On Sat, 20 Feb 2016 13:59:40 -0200
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> > How can I take snapshot from iSCSI storage?  
> >> Use the VM's snapshot tab  
> 
> Ok. I know about it... I meant ZFS snapshots... How can I do it??
> 
Log into Omnios and use standard ZFS commands.
http://www.datadisk.co.uk/html_docs/sun/sun_zfs_cs.htm

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Re: [PVE-User] Proxmox ZFS over ISCSI - OmniOS Comstar

[Michael Rasmussen]

On Sat, 20 Feb 2016 13:34:15 -0200
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> Now here's my doubt: can I create or migrate my current VM file from
> glusterFS storage to this new iSCSI storage?
Use 'Move disk' from the hardware tab.
> How can I take snapshot from iSCSI storage?
Use the VM's snapshot tab
> Is there some CLI for Proxmox or some command?
All the standard CLI commands in Proxmox works with your new storage.

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Re: [PVE-User] ZFS over iSCSI...

[Michael Rasmussen]

On Thu, 18 Feb 2016 14:20:12 +0300
Mikhail <m...@plus-plus.su> wrote:

> 
> Looks like there will be a problem with Omnios on my hardware -
> according to
> http://hardforum.com/threads/10gbe-for-omnios.1891004/#post-1042131880
> Intel's X550 NIC is not supported yet. This NIC will be used in my nodes
> built on Supermicro X11SSH-CTF motherboard.
> 
A working driver is under heavy test so I expect it will come to latest
stable and LTS version very soon.

> What's the main advantage of using Omnios instead of regular Linux
> distro with zfs?
> 
"The reasons for a Solaris based ZFS System
- 100% focus on ZFS that was developed for Solaris 10 years ago and is most 
stable and complete there
- a complete storage OS from one hand, not the toolbox with a core OS and many 
options and vendors
- stable support for mirrorred ZFS boot systems with boot environments (restore 
a former bootable OS state)
- WWN enumeration of disks (disk unique identification) to keeps disk id 
identical over controller, server or OS
- fault management with active hot-spares that replaces faulted disks 
automatically
- SMB, NFS and iSCSI integrated in the core OS and maintained by Oracle or 
Illumos (OmniOS)
- virtual networking with virtual switches and virtual nics with vlan support
- service management SMF with service auto restart
- Solaris CIFS server with NFS4 ACL (more Windows NTFS alike than Posix ACL) 
and AD support,
 Windows SID as extended ZFS attribute (Permissions stay intact after a restore 
to another AD server),
- ZFS snaps as Windows „previous version“, stable and just working out of the 
box since years"
(http://www.napp-it.org/doc/downloads/napp-it.pdf)

The fastest, most stable, most scalable, and mature iSCSI implementation which 
is also maintained in Core OS. Complete cli available so no fiddling around 
with config files. (my add-on :-)

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Re: [PVE-User] ZFS over iSCSI...

[Michael Rasmussen]

On Wed, 17 Feb 2016 23:31:50 +0300
Mikhail <m...@plus-plus.su> wrote:

> 
> So after your and Steffen's responses I'm going to give it a try as per
> Wiki instructions with Omnios over 10Gbit network.
> 
Should any of you run into a problem we have a discussion list for
omnios here: http://lists.omniti.com/mailman/listinfo/omnios-discuss

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Re: [PVE-User] ZFS over iSCSI...

[Michael Rasmussen]

On Wed, 17 Feb 2016 17:14:41 -0200
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> Wow! That's nice... I do not know Omnios... I will give a try...
> 
If you ned GUI you can fetch napp-it (web based administration):
https://www.napp-it.org/index_en.html

I good installation guide for Omnios (and napp-it):
http://www.napp-it.org/doc/downloads/napp-it.pdf

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Re: [PVE-User] ZFS over iSCSI...

[Michael Rasmussen]

On Wed, 17 Feb 2016 17:00:07 -0200
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> As I am a poor guy here, and I can't and prehaps even needed infinitband
> and whatever,
> I suppose if I deploy an Ubuntu Server with iscsi-target act as an storage
> serve will work also, don't you agreed?
> 
I have not tried Ubuntu, or any Linux for that matter, as ZFS storage
server so I cannot give any advice. Why not try Omnios? (the cost is as
Ubuntu - only your own precious time ;-)

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Re: [PVE-User] ZFS over iSCSI...

[Michael Rasmussen]

On Wed, 17 Feb 2016 20:12:34 +0300
Mikhail <m...@plus-plus.su> wrote:

> Good question. I'm also in process of setting up new production HA
> cluster with iSCSI shared storage over 10Gbit network and I also thought
> of ZFS of course with all it's features. One thing that bothers me is
> that ZFS is known and designed to work well with direct access to the
> drives, which is not about iSCSI of course..
> 
Do you mean iSCSI is not suited for ZFS? I say on the contrary. iSCSI
and ZFS is a match in heaven;-)

Regarding wiki for ZFS over iSCSI: There simply is not more to it -
follow the advice and you are up and running.

As Steffen mentions: A two or three node setup using a Solaris (Omnios
in my case) based ZFS shared storage and the performance is unbeaten.
Steffen uses 10 Gb ethernet while I use Infiniband DDR with this setup
and a proper RAID 10 ZFS should give you:
Random read I/0: ca. 4000 iops
Random write I/O: ca. 1200-1500 iops

Add to this: Life migration, life snapshots, linked clones.

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Re: [PVE-User] BTRFS...

[Michael Rasmussen]

On Tue, 2 Feb 2016 11:53:51 -0500
brian mullan <bmullan.m...@gmail.com> wrote:

> Matter of fact I just changed my machine to use btrfs raid10 (btrfs raid
> not mdm raid).   In btrfs this is only 1 command:
> 
How about raid 5 and 6? Are these still not considered production ready?

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Re: [PVE-User] HDD errors in VMs

[Michael Rasmussen]

On Thu, 7 Jan 2016 15:48:08 +0100
Michael Pöllinger <m.poellin...@wds-tech.de> wrote:

> 
> Only for info i can only repeat that this problems occour only on new VMs 
> we´ve isntalled on debian 8.x with ext4.
> Older Systems with ext3 run and run and run without any errors.
> 
> So i guess no hardware errors, cause there should be any error information or 
> different behave in those VMs
> 
Since you use RAID controllers (I assume with BBU) try using proxmox
cache setting 'write through' or 'directsync'. Read here:
https://pve.proxmox.com/wiki/Performance_Tweaks

Default mount options for ext4 in debian 8.2: type ext4
(rw,noatime,data=ordered)

You could try: rw,noatime,data=ordered,barrier=1

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Re: [PVE-User] problem during installation of proxmox

[Michael Rasmussen]

On Sun, 3 Jan 2016 16:50:35 +0500
Muhammad Yousuf Khan <sir...@gmail.com> wrote:

> 
> dpkg: error processing package proxmox-ve (--configure):
>  dependency problems - leaving unconfigured
> Errors were encountered while processing:
>  pve-manager
>  proxmox-ve
> E: Sub-process /usr/bin/dpkg returned an error code (1)
> 
> 
Try from CLI:
sudo dpkg --configure -a
sudo apt-get dist-upgrade (Just to be sure)

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Re: [PVE-User] vzdump backup timing out

[Michael Rasmussen]

On Wed, 11 Nov 2015 16:40:11 +0100
John Crisp <jcr...@safeandsoundit.co.uk> wrote:

> 
> Yes it is a configuration option under storage. But what does it
> actually control as it doesn't appear to be clear ?
> 
It controls the number of backups for each VM so if this number is two
this means you can have at most 2 backups of this VM on the backup
storage at any given time.

For manual backups this means a backup job will fail if there is
already 2 backups of this VM at the storage. For the automatic backup
schedule it means the backup scheduler will add a new backup and if
this backup succeeds it will delete the oldest backup ensuring there is
only 2 backups at any given time.

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Re: [PVE-User] vzdump backup timing out

[Michael Rasmussen]

On Sat, 7 Nov 2015 16:03:25 -0500 (EST)
Daniel Bayerdorffer <dani...@numberall.com> wrote:

> Hi Alain, 
> 
> Thanks in advance for your help. At first I thought my storage was full as 
> well. So I deleted any existing backups and tried again. It worked when I did 
> a manual backup, but again failed on a scheduled backup. 
> 
> VM101 is about 100 Gig, and VM102 is about 9 Gig. 
> 
I think it is caused by congestion on your backup device/network. When
you do a manual backup there is only 1 backup running concurrently but
when the scheduled backup runs it will start backup concurrently if the
VM's which is to be backed up is running on different Proxmox host. To
overcome this problem you should make a scheduled backup for each
proxmox host running on a different time scale so that there at any
time only runs a scheduled backup of one VM.

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Re: [PVE-User] IP not reachable from KVM Centos 7

[Michael Rasmussen]

On Wed, 4 Nov 2015 18:29:52 +
Ikenna Okpala <m...@ikennaokpala.com> wrote:

> I already tried disabling firewalld
> 
> systemctl disable firewalld
> 
> Problem still there..
> 
Could it by any chance be related to a duplicated MAC address?

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Re: [PVE-User] IP not reachable from KVM Centos 7

[Michael Rasmussen]

On Wed, 4 Nov 2015 17:40:30 +
Ikenna Okpala <m...@ikennaokpala.com> wrote:

> 
> Can anyone give me Idea what I may be doing wrong?
> 
Local firewall aktive in Centos7?

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Re: [PVE-User] Windows 2008R2 BSOD after Clonezilla

[Michael Rasmussen]

On Mon, 2 Nov 2015 20:16:14 -0200
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> Mergeide.reg perhaps???
> 
See:
https://pve.proxmox.com/wiki/Migration_of_servers_to_Proxmox_VE#Physical_server_to_Proxmox_VE_.28KVM.29_using_Clonezilla_Live_CDs

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Re: [PVE-User] Windows 2008R2 BSOD after Clonezilla

[Michael Rasmussen]

On Mon, 2 Nov 2015 20:05:56 -0200
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> Hi friends
> 
> I was sucessfuly clone baremetal Windows 2008R2 server to image with
> Clonezilla, but when boot, get BSOD with stop 0x7b...
> Somebody here get the same results and how to fix it?!?!
> 
> Thanks for any help
> 
Isn't you suppose to run a script which resets the hardware settings?

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Re: [PVE-User] I try hard but...

[Michael Rasmussen]

What cache settings do you have for the disks?

On October 29, 2015 2:09:33 PM CET, Gilberto Nunes  
wrote:
>Disk is virtio, alright!
>Because I need live migration and HA.
>With IDE/SATA there is no way to do that, AFAIK!
>
>2015-10-29 11:07 GMT-02:00 Luis G. Coralle
>:
>
>> Disk virtio too?
>>
>> 2015-10-29 10:03 GMT-03:00 Gilberto Nunes
>:
>>
>>> I alredy test with/without virtio. With E1000, with realtek.
>>> Same results...
>>>
>>> 2015-10-29 10:55 GMT-02:00 Luis G. Coralle
>
>>> :
>>>
 Hi, network is virtio?

 2015-10-25 20:33 GMT-03:00 Gilberto Nunes
>:

> Well friends...
>
> I really try hard to work with PVE, but is a pain in the ass...
> Nothing seems to work..
> I deploy Ubuntu with NFS storage connected through direct cable (
>1 gb
> ) and beside follow all docs available in the wiki and internet,
>one single
> VM continue to crash over and over again...
>
> So I realise that is time to say good bye to Proxmox...
>
> Live long and prosper...
>
>
>
>
> --
>
> Gilberto Ferreira
> +55 (47) 9676-7530
> Skype: gilberto.nunes36
>
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>>>
>>>
>>> --
>>>
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>>
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>
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>Gilberto Ferreira
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Re: [PVE-User] mixed linux bridges and openvswitch

[Michael Rasmussen]

On Thu, 29 Oct 2015 15:51:29 -0400
David Lawley <da...@upilab.com> wrote:

> 
> This behaviour is happening on all the nodes ( 1 2 and 4) that have linux 
> bridges..
> 
> I know there is a lot of reading between the lines here.  I have kind of 
> glossed over the issue.
> 
> Just wondering if that last node with OVS is affecting the other 3?
> 
> If you have had some experience in this area your help would be appreciated 
> backing out of OVS.
> 
The thing is that linux bridge and openvswitch is mutually exclusive
since both needs to load kernel modules which is supposed to hook into
the network stack the same place. What you discover is that when
migrating between a linux bridge and an openvswitch node the running vm
talks either language but not both at the same time (so to speak)

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Re: [PVE-User] I try hard but...

[Michael Rasmussen]

Remember softlocks is dangerous and can cause data loss.

On October 27, 2015 2:58:25 PM CET, Gilberto Nunes  
wrote:
>Now the VM seems to doing well...
>
>I put some limits on the Virtual HD ( Thanks Dmitry), mount NFS with
>soft
>and proto=udp, and right now stress the VM with a lot of impasync jobs,
>in
>order to migrate huge mailbox to oldserver to the VM...
>I will performe others tests yet, but I thing there peace here again...
>Thanks for help and sorry to blame proxmox, guys!
>My apologies!
>
>
>2015-10-26 17:55 GMT-02:00 Hector Suarez Planas
>
>:
>
>> ...
>>
>> Answer my own question: yes! There is a bug related NFS on kernel
>3.13
>>> that is the default on Ubuntu 14.04...
>>> I will try with kernel 3.19...
>>> Sorry for sent this to the list...
>>>
>>
>> Rectify is wise. Do not blame Proxmox for every bad thing that
>happens to
>> you with it. You must have patience with things that come from the
>world of
>> Open Source.
>>
>> :-)
>>
>> --
>> =
>> Lic. Hector Suarez Planas
>> Administrador Nodo CODESA
>> Santiago de Cuba
>> -
>> Blog: http://nihilanthlnxc.cubava.cu/
>> ICQ ID: 681729738
>> Conferendo ID: hspcuba
>> =
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>
>
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>
>
>
>
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Re: [PVE-User] Pve4 two nodes HA

[Michael Rasmussen]

On Thu, 8 Oct 2015 13:06:16 -0300
Gilberto Nunes <gilberto.nune...@gmail.com> wrote:

> Hi
> 
> Although is not recommended for production environment, you can edit
> /etc/pve/corosync.conf and set quorum in this file...
What should be changed/added to make that possible?

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Re: [PVE-User] Maximal disk image size

[Michael Rasmussen]

This is only a problem with 32-bit VM's

On September 29, 2015 1:16:54 PM CEST, Dmitry Petuhov  
wrote:
>Hello, all.
>
>There's question arouse. Does KVM in PVE have some limitation on disk 
>size? I've seen reports that with qcow2 there are problems with >2TB. 
>Are there same difficluties with RAW images? Or can I connect, say, 512
>
>TB image from ceph to single VM?
>
>Thanks in advance.
>
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Re: [PVE-User] Fwd: can't make zfs-zsync working

[Michael Rasmussen]

On Mon, 28 Sep 2015 08:14:42 +0200 (CEST)
Wolfgang Bumiller <w.bumil...@proxmox.com> wrote:

> > root@cyclone ~ # pve-zsync sync --source 106  --dest ouragan:rpool/BKP_24H
> > --verbose   
> 
> I just checked the source - apparently we currently only allow ip(v4) 
> addresses
> there, no hostnames (this still needs changing...).
> 
And IPv6?

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Re: [PVE-User] Doubt about Virtual Routers on Proxmox

[Michael Rasmussen]

On Sat, 12 Sep 2015 13:27:00 -0400
Hector Suarez Planas <hector.sua...@codesa.co.cu> wrote:

> Greetings.
> 
> I have a doubt about use of virtual routers on Proxmox.
> 
> Is it recomended to use them? How safe can thembe? Help on this issue the 
> Proxmox firewall?
> 
I would personally never virtualize my edge routers but I use it for
virtualized networks inside Proxmox. I have good experience by using
pfSense as a virtualized router for virtualized networks inside Proxmox.

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Re: [PVE-User] Bug in Cache options ZFS over ISCSI?

[Michael Rasmussen]

On Wed, 2 Sep 2015 14:53:47 +0200
"Steffen Wagner" <m...@steffenwagner.com> wrote:

> 
> I am using nappit and Proxmox for ZFS over ISCSI.
> 
> When I create a VM and set writeback cache, the option inside napp it is
> correctly set.. but if I change it later to none or again back, the values
> are not transmitted to nappit.
> 
>  
You are mixing to different options. Cache can be configured both on
iSCSI level and on VM level. Cache on iSCSI level is configured on a
storage basis (storage view in Proxmox) which means this setting is
affecting all new VM's while cache on the VM level is affecting only
the specific VM. What you can see in napp-it is the cache setting on
iSCSI level while the cache setting on VM level is only used as an
option when starting the VM in proxmox.

I hope the above explanation makes sense?

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