On 28/08/2017 14:13, Yannis Milios wrote:
I use lvm-based block device on critical installation, actually.
However, backing up block devices is an hassle compared to regular
files: you basically need to use ddrescue or, even worse, plain dd.
Especially with the latter, you need
Il 26-08-2017 14:28 Yannis Milios ha scritto:
Ah I see, sorry I wasn't aware of that. Is there a particular reason
in using file based VMs ?
Simply for easy of management :)
since generally speaking the performance on
raw devices is much better and in DRBD9 you can leverage of thin lvm
or
Ah I see, sorry I wasn't aware of that. Is there a particular reason in
using file based VMs ? since generally speaking the performance on raw
devices is much better and in DRBD9 you can leverage of thin lvm or zfs
based snapshots.
Yannis
On 26 Aug 2017 15:14, "Gionatan Danti"
Il 26-08-2017 13:56 Yannis Milios ha scritto:
Have you considered a HA NFS over a 2-node DRBD8 cluster ? Should work
well on most hypervisors (qcow2,raw,vmdk based).
Yannis
Hi Yannis, yes, I considered that.
However, as this would be a converged setup (ie: virtual machines run on
the same
Have you considered a HA NFS over a 2-node DRBD8 cluster ? Should work well
on most hypervisors (qcow2,raw,vmdk based).
Yannis
On 26 Aug 2017 12:16, "A.Rubio" wrote:
> Hi all.
>
> I writted a book about this every years ago for a course.
>
> The book is about pacemaker,
Hi all.
I writted a book about this every years ago for a course.
The book is about pacemaker, drbd, gfs2 and kvm, for 2 nodes and for
many nodes.
It's writted in spanish because my english is poor (it's evident :-()
On 2017-08-25 04:08 PM, Gionatan Danti wrote:
> Il 25-08-2017 22:01 Digimer ha scritto:
>> On 2017-08-25 03:37 PM, Gionatan Danti wrote:
>>
>> The overhead of clustered locking is likely such that your VM
>> performance would not be good, I think.
>
> Mmm... I need to do some more testing with
Il 25-08-2017 22:01 Digimer ha scritto:
On 2017-08-25 03:37 PM, Gionatan Danti wrote:
The overhead of clustered locking is likely such that your VM
performance would not be good, I think.
Mmm... I need to do some more testing with fio, it seems ;)
With raw clustered LVs backing the servers,
On 2017-08-25 03:59 PM, Gionatan Danti wrote:
> Il 25-08-2017 21:46 Remolina, Diego J ha scritto:
>> Danti,
>>
>> Have you considered using something other than drbd for VM disk
>> storage? Glusterfs for example is really good for that. You may want
>> to give it a try. You should look at enabling
t: Re: [DRBD-user] DRBD Dual Primary + GFS2 for redundant KVM hosts
Il 25-08-2017 14:34 Digimer ha scritto:
>
> Our Anvil! project (https://www.alteeve.com/w/Build_an_m2_Anvil!) is
> basically this, except we put the VMs on clustered LVs and use gfs2 to
> store install media and the serve
On 2017-08-25 03:37 PM, Gionatan Danti wrote:
> Il 25-08-2017 14:34 Digimer ha scritto:
>>
>> Our Anvil! project (https://www.alteeve.com/w/Build_an_m2_Anvil!) is
>> basically this, except we put the VMs on clustered LVs and use gfs2 to
>> store install media and the server XML files.
>>
>> I
Il 25-08-2017 21:46 Remolina, Diego J ha scritto:
Danti,
Have you considered using something other than drbd for VM disk
storage? Glusterfs for example is really good for that. You may want
to give it a try. You should look at enabling sharding from the get-go
to speed up heals when a node goes
Il 25-08-2017 14:34 Digimer ha scritto:
Our Anvil! project (https://www.alteeve.com/w/Build_an_m2_Anvil!) is
basically this, except we put the VMs on clustered LVs and use gfs2 to
store install media and the server XML files.
I would NOT put the image files on gfs2, as the distributed locking
On 2017-08-25 02:49 AM, Gionatan Danti wrote:
> Hi list,
> in my endless search for information :) I was testing DRBD in dual
> primary mode + GFS2. The goal is "the same": running a replicated,
> 2-node KVM setup where disk images are located on the GFS2 filesystem.
>
> I know how to integrate
Hi list,
in my endless search for information :) I was testing DRBD in dual
primary mode + GFS2. The goal is "the same": running a replicated,
2-node KVM setup where disk images are located on the GFS2 filesystem.
I know how to integrate DRBD with corosync/pacemaker, but I wonder how
the
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