If iSCSI is the problem I think I will reinstall oVirt by choosing NFS for 
default storage and not iSCSI.

----- Mensaje original ----- 

> De: "Latchezar Filtchev" <lat...@aubg.bg>
> Para: "Adrian Gibanel" <adrian.giba...@btactic.com>, users@ovirt.org
> Enviados: Martes, 27 de Noviembre 2012 10:50:22
> Asunto: RE: [Users] Lvm vgs failed on allinone setup

> Hi,

> I also had a problems with disappearing of iSCSI storage. This might
> help:

> http://www.sysarchitects.com/iscsi_target_on_rhel6

> I was not able to solve my problem by manipulating /etc/lvm/lvm.conf.
> I reinstalled my test environment without LVM. Now after restart
> iSCSI storage does not disappear.

> Best,
> Latcho

> --
> Latchezar Filtchev
> IT Manager
> http://www.aubg.bg

> -----Original Message-----
> From: users-boun...@ovirt.org [mailto:users-boun...@ovirt.org] On
> Behalf Of Adrian Gibanel
> Sent: Monday, November 26, 2012 7:50 PM
> To: users@ovirt.org
> Subject: [Users] Lvm vgs failed on allinone setup

> Hi,

> I'm trying to setup an oVirt 3.1 allinone system as described at:
> http://blog.jebpages.com/archives/up-and-running-with-ovirt-3-1-edition/
> .

> The main differences between my article and my setup are:

> * I've downgraded ovirt-engine-sdk to 3.1 as suggested.
> * I've selected ISCSI instead of NFS when running engine-setup and
> answering to the: The default storage question. (I can change that
> to NFS if needed, I think I used ISCSI because I had seen it in
> another howto).
> * Hacked all_in_one_100.py to increase waitForHostUp timeout (
> http://blog.jebpages.com/archives/up-and-running-with-ovirt-3-1-edition/#comment-705803414
> )

> So when I first install it I go to attach local storage to local
> datacenter as described in 5th setp in
> http://blog.jebpages.com/archives/up-and-running-with-ovirt-3-1-edition/
> and everything seems to work fine.

> My problem happens when I reboot. (I just rebooted to make sure
> everything was setup fine.).
> Then the local storage (named iso) isn't attached to the local
> datacenter any more.
> I've checked /var/log/messages and I've found what I think it's the
> problem:
> ---

> Nov 25 23:54:03 server vdsm Storage.LVM WARNING lvm vgs failed: 5 []
> ['
> Volume group "e2e3cb9c-a664-4fda-be0c-428b239e7e66" not found']

> Nov 25 23:54:03 server vdsm TaskManager.Task ERROR
> Task=`e75609f0-7322-4845-9cfc-1fb18e0ad3fc`::Unexpected error

> Nov 25 23:54:03 server vdsm Storage.Dispatcher.Protect ERROR
> {'status': {'message': "Storage domain does not exist:
> ('e2e3cb9c-a664-4fda-be0c-428b239e7e66',)", 'code': 358}}
> ---

> The place where I initially placed iso and storage was /home/iso and
> /home/storage where /home was a normal ext4 partition.
> In order to try to fix this problem and maybe increase oVirt
> capabilites now /home is an ext4 partition but not a normal one but
> mounted over an LV one.
> As you can see the problem has not been fixed.

> So I either need some help on how to fix this. I don't know. Some
> ideas.
> * What's oVirt expecting when it searches a Volume group.
> * What command is it trying to run?
> * I've tried to search the script which might do the search but I've
> been unable to find it.
> * Does oVirt expect any special partitioning layout regarding lvm?

> Thank you for any idea you could have.

> --
> --
> Adrián Gibanel

-- 

-- 
Adrián Gibanel 
I.T. Manager 

+34 675 683 301 
www.btactic.com 



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