Re: [ovirt-users] iSCSI question... LUNS->Targets balnk

[Alan Murrell]

I think it is something with oVirt.  I installed a VM with FreeNAS and
configured it tot he setup guide for iSCSI.  Once again, I can connect
my Windows 7 PC to the iSCSI target and LUN no problem, but when I try
to add iSCSI storage in oVirt, it sees the target, can log in to the
target but does not see any LUNs.

iSCSI is not a huge deal; I guess I will just stick with NFS and
consider iSCSI in oVirt not ready.

Regards,

Alan

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Re: [ovirt-users] [ovirt-devel] [ANN] oVirt 3.6.0 First Beta Release is now available for testing

[Paul Dyer]

Hi,

I have a Fedora 22 desktop that I would like to use for a ovirt hosted
engine install.  If I run the beta 3.6.0, will I need to reinstall when it
is GA?

Thanks,
Paul


On Tue, Aug 4, 2015 at 10:51 AM, Sandro Bonazzola 
wrote:

> The oVirt Project is pleased to announce the availability of the First
> Beta release of oVirt 3.6 for testing, as of August 4th, 2015.
>
> oVirt is an open source alternative to VMware vSphere, and provides an
> excellent KVM management interface for multi-node virtualization.
> The First Beta release is available now for Fedora 22,
> Red Hat Enterprise Linux 6.7, CentOS Linux 6.6 (or similar) and
> Red Hat Enterprise Linux 7.1, CentOS Linux 7.1 (or similar).
>
> The First Beta release can also be deployed on Hypervisor Hosts running
> Fedora 21 and Fedora 22.
> Experimental support for Debian 8.1 Jessie has been added too.
>
> This First Beta release of oVirt includes numerous bug fixes.
> See the release notes [1] for an initial list of the new features and bugs
> fixed.
>
> Please refer to release notes [1] for Installation / Upgrade instructions.
> A new Node ISO[2] is already available and an oVirt Live ISO will be
> available soon as well.
>
> Please note that mirrors[3] may need usually one day before being
> synchronized.
>
> Please refer to the release notes for known issues in this release.
>
> [1] http://www.ovirt.org/OVirt_3.6_Release_Notes
> [2] http://plain.resources.ovirt.org/pub/ovirt-3.6-pre/iso/ovirt-node/
> [3] http://www.ovirt.org/Repository_mirrors#Current_mirrors
>
> --
> Sandro Bonazzola
> Better technology. Faster innovation. Powered by community collaboration.
> See how it works at redhat.com
>
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>



-- 
Paul Dyer,
Mercury Consulting Group, RHCE
504-302-8750
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Re: [ovirt-users] iSCSI question... LUNS->Targets blank

[Alan Murrell]

As an update... I was able to connect to the iSCSI target on my host  
from a Windows 7 PC on the same network with problem.  This was after  
I added an ACL for my Win7 PC's IQN.


Not sure if I am missing something in oVirt itself?

Regards,

Alan

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Re: [ovirt-users] ovirt-guest-agent

[Amador Pahim]

Please check the command "vdsClient -s 0 getVmStats  | grep disks".

You will find the following data (vdsm/rpc/vdsmapi-schema.json):
---
6845 ##
6846 # @VmDiskStats:
6847 #
6848 # Statistics about a virtual machine disk device.
6849 #
6850 # @truesize:  The amount of underlying storage allocated (in 
bytes)

6851 #
6852 # @apparentsize:  The size of the disk (in bytes)
6853 #
6854 # @imageID:   The UUID of the Image associated with this disk
6855 #
6856 # @readRate:  The read activity in bytes per second
6857 #
6858 # @writeRate: The write activity in bytes per second
6859 #
6860 # @readLatency:   The latency of read operations in nanoseconds
6861 #
6862 # @writeLatency:  The latency of write operations in nanoseconds
6863 #
6864 # @flushLatency:  The latency of flush operations in nanoseconds
6865 #
6866 # @writeOps:  Write operations since VM start (new in version 
4.17.0)

6867 #
6868 # @readOps:   Read operations since VM start (new in version 
4.17.0)

6869 #
6870 # @readBytes: Bytes read (new in version 4.17.0)
6871 #
6872 # @writtenBytes:  Bytes written (new in version 4.17.0)
6873 #
6874 # Since: 4.10.0
6875 ##
6876 {'type': 'VmDiskStats',
6877  'data': {'truesize': 'uint', 'apparentsize': 'uint', 'imageID': 
'UUID',

6878   'readRate': 'uint', 'writeRate': 'uint',
6879   'readLatency': 'uint', 'writeLatency': 'uint',
6880   'flushLatency': 'uint', 'writeOps': 'uint', 'readOps': 
'uint',

6881   'readBytes': 'uint', 'writtenBytes': 'uint'}}
---

The data is exposed through the API 
(https://ovirt.example.com/api/vms//disks//statistics).


--
apahim



On 08/10/2015 02:53 PM, Matthew Lagoe wrote:


You can sort of get the io from something like Nagios however the 
problem is if the vm goes wacky you can only get the stats properly 
from a lower level


*From:*users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] *On 
Behalf Of *Donny Davis

*Sent:* Monday, August 10, 2015 10:48 AM
*To:* Arsène Gschwind
*Cc:* users
*Subject:* Re: [ovirt-users] ovirt-guest-agent

Can't you get these metrics from nagios?

On Aug 10, 2015 1:47 PM, "Arsène Gschwind" > wrote:


I would also be interested for that feature since we run some VM with 
high I/O load it would be great to see those metrics in the interface.


rgds,
Arsène

On 08/10/2015 04:49 PM, Matthew Lagoe wrote:

I have had a RFE with Redhat for about 3 years on this exact item,
so it doesn’t seem to be a high priority, that said more people
asking for it is a good thing.

*From:*users-boun...@ovirt.org 
[mailto:users-boun...@ovirt.org] *On Behalf Of *Johan Kooijman
*Sent:* Monday, August 10, 2015 06:16 AM
*To:* users
*Subject:* [ovirt-users] ovirt-guest-agent

Hi,

Would it be possible add the io stats of a vm into
ovirt-guest-agent for making that data available in the interface
of oVirt?

I could help out by getting the stats into the client package, the
server side would be a bigger issue to me.

-- 


Met vriendelijke groeten / With kind regards,
Johan Kooijman

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Re: [ovirt-users] iSCSI question... LUNS->Targets balnk

[Alan Murrell]

Quoting "Donny Davis" :


I think you nailed it. There are no disks available to mount. They are
already mounted to the host.


OK, I will see if I can stop the host itself from mounting the iSCSI  
LUN, and then try again through oVirt.


The iSCSI Initiator Name ("IQN"?) I got via the oVirt interface, that  
would be the same identifier for the iSCSI client/initiator on the  
host itself, right (outside of oVirt, I mean)?


Regards,

Alan

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Re: [ovirt-users] ovirt-guest-agent

[Matthew Lagoe]

You can sort of get the io from something like Nagios however the problem is if 
the vm goes wacky you can only get the stats properly from a lower level

 

From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of 
Donny Davis
Sent: Monday, August 10, 2015 10:48 AM
To: Arsène Gschwind
Cc: users
Subject: Re: [ovirt-users] ovirt-guest-agent

 

Can't you get these metrics from nagios?

On Aug 10, 2015 1:47 PM, "Arsène Gschwind"  wrote:

I would also be interested for that feature since we run some VM with high I/O 
load it would be great to see those metrics in the interface.

rgds,
Arsène

On 08/10/2015 04:49 PM, Matthew Lagoe wrote:

I have had a RFE with Redhat for about 3 years on this exact item, so it 
doesn’t seem to be a high priority, that said more people asking for it is a 
good thing.

 

 

 

From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of 
Johan Kooijman
Sent: Monday, August 10, 2015 06:16 AM
To: users
Subject: [ovirt-users] ovirt-guest-agent

 

Hi,

 

Would it be possible add the io stats of a vm into ovirt-guest-agent for making 
that data available in the interface of oVirt? 

 

I could help out by getting the stats into the client package, the server side 
would be a bigger issue to me.


 

-- 

Met vriendelijke groeten / With kind regards,
Johan Kooijman

 

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Re: [ovirt-users] ovirt-guest-agent

[Arsène Gschwind]

for sure, but to have an overview it would be great since libvirt 
provides those metrics as we can see it in virt-manager.

And then use nagios or any other monitoring tool to have a deeper dive...

On 08/10/2015 07:48 PM, Donny Davis wrote:


Can't you get these metrics from nagios?

On Aug 10, 2015 1:47 PM, "Arsène Gschwind" > wrote:


I would also be interested for that feature since we run some VM
with high I/O load it would be great to see those metrics in the
interface.

rgds,
Arsène

On 08/10/2015 04:49 PM, Matthew Lagoe wrote:


I have had a RFE with Redhat for about 3 years on this exact
item, so it doesn’t seem to be a high priority, that said more
people asking for it is a good thing.

*From:*users-boun...@ovirt.org 
[mailto:users-boun...@ovirt.org] *On Behalf Of *Johan Kooijman
*Sent:* Monday, August 10, 2015 06:16 AM
*To:* users
*Subject:* [ovirt-users] ovirt-guest-agent

Hi,

Would it be possible add the io stats of a vm into
ovirt-guest-agent for making that data available in the interface
of oVirt?

I could help out by getting the stats into the client package,
the server side would be a bigger issue to me.

-- 


Met vriendelijke groeten / With kind regards,
Johan Kooijman



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Re: [ovirt-users] ovirt-guest-agent

[Donny Davis]

Can't you get these metrics from nagios?
On Aug 10, 2015 1:47 PM, "Arsène Gschwind" 
wrote:

> I would also be interested for that feature since we run some VM with high
> I/O load it would be great to see those metrics in the interface.
>
> rgds,
> Arsène
>
> On 08/10/2015 04:49 PM, Matthew Lagoe wrote:
>
> I have had a RFE with Redhat for about 3 years on this exact item, so it
> doesn’t seem to be a high priority, that said more people asking for it is
> a good thing.
>
>
>
>
>
>
>
> *From:* users-boun...@ovirt.org [mailto:users-boun...@ovirt.org
> ] *On Behalf Of *Johan Kooijman
> *Sent:* Monday, August 10, 2015 06:16 AM
> *To:* users
> *Subject:* [ovirt-users] ovirt-guest-agent
>
>
>
> Hi,
>
>
>
> Would it be possible add the io stats of a vm into ovirt-guest-agent for
> making that data available in the interface of oVirt?
>
>
>
> I could help out by getting the stats into the client package, the server
> side would be a bigger issue to me.
>
>
>
> --
>
> Met vriendelijke groeten / With kind regards,
> Johan Kooijman
>
>
> ___
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>
>
>
> ___
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>
>
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Re: [ovirt-users] ovirt-guest-agent

[Arsène Gschwind]

I would also be interested for that feature since we run some VM with 
high I/O load it would be great to see those metrics in the interface.


rgds,
Arsène

On 08/10/2015 04:49 PM, Matthew Lagoe wrote:


I have had a RFE with Redhat for about 3 years on this exact item, so 
it doesn’t seem to be a high priority, that said more people asking 
for it is a good thing.


*From:*users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] *On 
Behalf Of *Johan Kooijman

*Sent:* Monday, August 10, 2015 06:16 AM
*To:* users
*Subject:* [ovirt-users] ovirt-guest-agent

Hi,

Would it be possible add the io stats of a vm into ovirt-guest-agent 
for making that data available in the interface of oVirt?


I could help out by getting the stats into the client package, the 
server side would be a bigger issue to me.


--

Met vriendelijke groeten / With kind regards,
Johan Kooijman



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Re: [ovirt-users] iSCSI question... LUNS->Targets balnk

[Donny Davis]

I think you nailed it. There are no disks available to mount. They are
already mounted to the host.
On Aug 10, 2015 1:20 PM, "Alan Murrell"  wrote:

> Quoting "Donny Davis" :
>
> tail -f /var/log/vdsm/vdsm.log
>>
>> Then then go through the connect sequence. You should get a better idea.
>>
>
> It shows a successful connect, but keeps trying to do a scan.  About every
> 30 seconds, the following entry shows up:
>
> --- START ---
> Thread-12294::DEBUG::2015-08-10
> 10:13:09,286::misc::741::Storage.SamplingMethod::(__call__) Trying to enter
> sampling method (storage.iscsi.rescan)
> Thread-12294::DEBUG::2015-08-10
> 10:13:09,286::iscsi::424::Storage.ISCSI::(rescan) Performing SCSI scan,
> this will take up to 30 seconds
> Thread-12294::DEBUG::2015-08-10
> 10:13:09,286::iscsiadm::97::Storage.Misc.excCmd::(_runCmd) /usr/bin/sudo -n
> /sbin/iscsiadm -m session -R (cwd None)
> --- END ---
>
> so it seems it never quite finished the scan.
>
>
> Did you put any acls on the iscsi mount to allow the hosts to connect?
>>
>
> I did.  I was able to get my oVirt host's iSCSI Initiator Name from it's
> "General" tab/page "System > Hosts", and created the ACL for it in
> "targetcli":
>
> -- START ---
> cd
> /iscsi/iqn.2003-01.org.linux-iscsi.yvr001svr01.x8664:sn.33a56c3324e0/tpg1/acls
> create iqn.1994-05.com.redhat:ba4cc8b3368e
> --- END ---
>
> The output indicated that the ACL was created and mapped to LUN 0.  I ran
> the exact same command for my Win 7 PC (using it's iSCSI Initiator Name, of
> course).
>
> I did not setup any sort of CHAP authentication.
>
> There is one thing I have noticed in viewing my /var/log/messages on my
> host/storage that may have an effect.  As you may or may not know, I am
> running a single-server with hosted engine.  My storage is also on this
> server.
>
> What I have noticed is that my host/storage server is mounting the iSCSI
> target automatically as '/dev/sdd', so I am not sure if that may be
> affecting oVirt's ability to scan, if it is already connected to by the
> very same host?
>
> (I hope this makes sense?  If not, let me know and I can try to answer
> your questions better)
>
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Re: [ovirt-users] iSCSI question... LUNS->Targets balnk

[Alan Murrell]

Quoting "Donny Davis" :


tail -f /var/log/vdsm/vdsm.log

Then then go through the connect sequence. You should get a better idea.


It shows a successful connect, but keeps trying to do a scan.  About  
every 30 seconds, the following entry shows up:


--- START ---
Thread-12294::DEBUG::2015-08-10  
10:13:09,286::misc::741::Storage.SamplingMethod::(__call__) Trying to  
enter sampling method (storage.iscsi.rescan)
Thread-12294::DEBUG::2015-08-10  
10:13:09,286::iscsi::424::Storage.ISCSI::(rescan) Performing SCSI  
scan, this will take up to 30 seconds
Thread-12294::DEBUG::2015-08-10  
10:13:09,286::iscsiadm::97::Storage.Misc.excCmd::(_runCmd)  
/usr/bin/sudo -n /sbin/iscsiadm -m session -R (cwd None)

--- END ---

so it seems it never quite finished the scan.



Did you put any acls on the iscsi mount to allow the hosts to connect?


I did.  I was able to get my oVirt host's iSCSI Initiator Name from  
it's "General" tab/page "System > Hosts", and created the ACL for it  
in "targetcli":


-- START ---
cd  
/iscsi/iqn.2003-01.org.linux-iscsi.yvr001svr01.x8664:sn.33a56c3324e0/tpg1/acls

create iqn.1994-05.com.redhat:ba4cc8b3368e
--- END ---

The output indicated that the ACL was created and mapped to LUN 0.  I  
ran the exact same command for my Win 7 PC (using it's iSCSI Initiator  
Name, of course).


I did not setup any sort of CHAP authentication.

There is one thing I have noticed in viewing my /var/log/messages on  
my host/storage that may have an effect.  As you may or may not know,  
I am running a single-server with hosted engine.  My storage is also  
on this server.


What I have noticed is that my host/storage server is mounting the  
iSCSI target automatically as '/dev/sdd', so I am not sure if that may  
be affecting oVirt's ability to scan, if it is already connected to by  
the very same host?


(I hope this makes sense?  If not, let me know and I can try to answer  
your questions better)

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Re: [ovirt-users] iSCSI question... LUNS->Targets balnk

[Donny Davis]

What does the engine log say, how about the vdsm logs?

go into your host that you have selected to do the iscsi mount and do a

tail -f /var/log/vdsm/vdsm.log

Then then go through the connect sequence. You should get a better idea.

Did you put any acls on the iscsi mount to allow the hosts to connect?
On Aug 10, 2015 12:36 PM, "Alan Murrell"  wrote:

> I cleared my iSCSI config and ran through the setup again.  Once again, I
> am able to connect to it the LUN from my Win7 PC, but not from oVirt.
>
> oVirt is able to discover the target, but when I click "Login", which is
> does successfully, there are no LUNs displayed.
>
> Do I need to install something else on my oVirt host?  I have been
> assuming that oVirt has it's own iSCSI Initiator, but maybe I need to
> install one?
>
> -Alan
>
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Re: [ovirt-users] iSCSI question... LUNS->Targets balnk

[Alan Murrell]

I cleared my iSCSI config and ran through the setup again.  Once  
again, I am able to connect to it the LUN from my Win7 PC, but not  
from oVirt.


oVirt is able to discover the target, but when I click "Login", which  
is does successfully, there are no LUNs displayed.


Do I need to install something else on my oVirt host?  I have been  
assuming that oVirt has it's own iSCSI Initiator, but maybe I need to  
install one?


-Alan

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Re: [ovirt-users] ovirt-guest-agent

[Matthew Lagoe]

I have had a RFE with Redhat for about 3 years on this exact item, so it 
doesn’t seem to be a high priority, that said more people asking for it is a 
good thing.

 

 

 

From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of 
Johan Kooijman
Sent: Monday, August 10, 2015 06:16 AM
To: users
Subject: [ovirt-users] ovirt-guest-agent

 

Hi,

 

Would it be possible add the io stats of a vm into ovirt-guest-agent for making 
that data available in the interface of oVirt? 

 

I could help out by getting the stats into the client package, the server side 
would be a bigger issue to me.


 

-- 

Met vriendelijke groeten / With kind regards,
Johan Kooijman

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Re: [ovirt-users] VM time offset

[Matthew Lagoe]

In my experience for windows guests you need to set the time on the vm to
your local time, for RHEL you need to set it to UTC.

-Original Message-
From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of
Groten, Ryan
Sent: Monday, August 10, 2015 07:44 AM
To: Aslam, Usman; users@ovirt.org
Subject: Re: [ovirt-users] VM time offset

I'm having the same issue where the guest time is offset by 7 hours (out
timezone difference) from UTC.  I read in the VM System configuration for
Time Zone that hwclock on Linux guests should have the TZ set to GMT+0, but
if I change it to GMT-7, the clock is set as expected on boot.

-Original Message-
From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of
Aslam, Usman
Sent: Friday, August 07, 2015 3:23 PM
To: users@ovirt.org
Subject: [ovirt-users] VM time offset

Hi guys,

I'm having an issue where the VMs do not keep correct time upon reboot. The
clock is always off by ~4 hours.
I've checked and time and time zone on engine/host nodes is correct. Correct
time zone is specified in the ovirt vm configuration as well.

The VM in question is a clean CentOS 7 install. It did not have NTP enabled.
I've tried setting it up with a local server and no dice. Upon reboot it
always gets messed up.

[root@xyz-dev ~]# date
Fri Aug  7 17:18:09 EDT 2015
[root@xyz-dev ~]# reboot
Connection to sso-dev closed by remote host.

[root@xyz-dev ~]# date
Fri Aug  7 13:20:47 EDT 2015
[root@xyz-dev ~]# ntpdate ntp1.xyz.domain.org
 7 Aug 17:21:05 ntpdate[2151]: step time server 130.64.25.6 offset
14410.388931 sec

Thanks,
--Usman
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Re: [ovirt-users] VM time offset

[Groten, Ryan]

I'm having the same issue where the guest time is offset by 7 hours (out 
timezone difference) from UTC.  I read in the VM System configuration for Time 
Zone that hwclock on Linux guests should have the TZ set to GMT+0, but if I 
change it to GMT-7, the clock is set as expected on boot.

-Original Message-
From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On Behalf Of 
Aslam, Usman
Sent: Friday, August 07, 2015 3:23 PM
To: users@ovirt.org
Subject: [ovirt-users] VM time offset

Hi guys,

I'm having an issue where the VMs do not keep correct time upon reboot. The 
clock is always off by ~4 hours.
I've checked and time and time zone on engine/host nodes is correct. Correct 
time zone is specified in the ovirt vm configuration as well.

The VM in question is a clean CentOS 7 install. It did not have NTP enabled. 
I've tried setting it up with a local server and no dice. Upon reboot it always 
gets messed up.

[root@xyz-dev ~]# date
Fri Aug  7 17:18:09 EDT 2015
[root@xyz-dev ~]# reboot
Connection to sso-dev closed by remote host.

[root@xyz-dev ~]# date
Fri Aug  7 13:20:47 EDT 2015
[root@xyz-dev ~]# ntpdate ntp1.xyz.domain.org
 7 Aug 17:21:05 ntpdate[2151]: step time server 130.64.25.6 offset 14410.388931 
sec

Thanks,
--Usman
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[ovirt-users] ovirt-guest-agent

[Johan Kooijman]

Hi,

Would it be possible add the io stats of a vm into ovirt-guest-agent for
making that data available in the interface of oVirt?

I could help out by getting the stats into the client package, the server
side would be a bigger issue to me.

-- 
Met vriendelijke groeten / With kind regards,
Johan Kooijman
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Re: [ovirt-users] [ATN] LDAP Users please read

[Alon Bar-Lev]

- Original Message -
> From: "Alon Bar-Lev" 
> To: "Joop" 
> Cc: users@ovirt.org
> Sent: Thursday, August 6, 2015 7:05:38 PM
> Subject: Re: [ovirt-users] [ATN] LDAP Users please read
> 
> 
> 
> - Original Message -
> > From: "Joop" 
> > To: users@ovirt.org
> > Sent: Thursday, August 6, 2015 4:28:00 PM
> > Subject: Re: [ovirt-users] [ATN] LDAP Users please read
> > 
> > Hi Alon,
> > 
> > I'll take the bait :-)
> 
> Good!
>  
> > I have just installed the extension and the examples are there.
> > I also installed the migration tool. Now it comes.
> > We use Samba4 as our AD provider and have succesfully connected
> > Foreman-1.8 to it using the cert that I got from the server.
> > The same cert doesn't work with the migration tool. So either I'm
> > confused or .. The first possibility is most likely. I always trip over
> > certs and terminology.
> > Error I got:
> > [root@mgmt01 ~]# ovirt-engine-kerbldap-migration-tool --debug --domain
> > ad.nieuwland.nl --cacert ad02.pem
> > [INFO   ] tool: ovirt-engine-kerbldap-migration-1.0.2
> > (ovirt-engine-kerbldap-migration-1.0.2-1.el6ev)
> > [INFO   ] Connecting to database
> > [INFO   ] Sanity checks
> > [INFO   ] Loading options
> > [INFO   ] Using ldap URI: ldap://ad01.ad.nieuwland.nl:389
> > [ERROR  ] Conversion failed: {'info': "TLS error -8172:Peer's
> > certificate issuer has been marked as not trusted by the user.", 'desc':
> > 'Connect error'}
> > 
> > And now...
> 
> Interesting.
> 
> Can you please attach the ad02.pem certificate, and paste the output of the
> following command?
> 
> $ openssl s_client -connect ad01.ad.nieuwland.nl:636 -showcerts < /dev/null
> 
> There is no leak of sensitive information, it will enable me to determine
> what is wrong,.

Hi Joop,

I am curios what went wrong, when you find time please send me the above 
information.

Thanks!
Alon
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Re: [ovirt-users] is it possible to change IOS and Export domain?

[Will]

Thank you.  That works well. 

W



> On Aug 9, 2015, at 2:52 AM, Vered Volansky  wrote:
> 
> You can put your domains to maintenance, then detach them from the DC they're 
> in, and them import and attach them to a different dc than they're in now.
> You cannot change the functionality of a storage domain from ISO to EXPORT, 
> or any other change.
> 
> 
>> On Sun, Aug 9, 2015 at 4:32 AM, Will K  wrote:
>> hi,
>> 
>> I have oVirt 3.3.3-2.el6 on a 2-node setup.  Node1 has an ISO domain through 
>> NFS while node2 has a NFS export domain.  
>> 
>> It does't sound right after extensive usage on this setup. I would like to 
>> change them to an export on another NFS server.  On the overt GUI, I'm not 
>> allowed to change the ISO and the NFS domain.  I'm allowed to add another 
>> "Data/GlusterFS" domain.
>> 
>> Please let me know if it is possible to make changes to the ISO and NFS 
>> domain.
>> 
>> Thanks
>> Will
>> 
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> 
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[ovirt-users] Partition type

[Robert Fitzpatrick]

I am brand new to Ovirt looking to migrate some virtual machines now on 
a KVM server and wanted to get some advice. Setting up my first CentOS 7 
server following this document to have a self-hosted engine and storage...


http://community.redhat.com/blog/2014/10/up-and-running-with-ovirt-3-5/

I've never used GlusterFS either and my question is what benefits it 
provides, why this doc suggests using it and how it could provide 
redundancy. The server has 4 SSD drives and a RAID controller, but is 
that beneficial and would using LVM be any benefit to store the 
partitions/bricks?


Thanks for any advice.

--
Robert

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Re: [ovirt-users] Hosted Engine on SAS storage array

[Cristian Mammoli]

Yep, it means a shared storage using SAS interface instead of FC. 
Directly attached to each node of the cluster


Il 07/08/2015 13:43, Jiri Belka ha scritto:

From: "Cristian Mammoli" 
To: "users" 
Sent: Thursday, August 6, 2015 6:19:55 PM
Subject: [ovirt-users] Hosted Engine on SAS storage array

I see oVirt 3.6 support HE on fibre channel, what if I have a SAS SAN?
Is it supported as well?

Does 'SAS storage array' means serial-attached scsi disks which
are located out of your engine box?

If so then it would be (from OS perspective) a DAS (direct attached
storage), wouldn't it?

Local storage is not helpful if you want to use multiple hosts.
Or at least I'm not aware of any solution for sharing DAS.

If 'SAS storage array' means some reservation via SCSI commands
whic is supported by storage box, then I would say - no it's
not supported.

But I could be mistaken.

j.


--
Mammoli Cristian
System administrator
T. +39 0731 22911
Via Brodolini 6 | 60035 Jesi (an)

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