[ovirt-users] Changing iSCSI LUN host IP and changing master domain

[Trey Dockendorf]

I was able to get iSCSI over TCP working...but now the task of adding the
LUN to the GUI has been stuck at the "spinning" icon for about 20 minutes.

I see these entries in vdsm.log over and over with the Task value changing:

Thread-14::DEBUG::2014-10-21
14:16:50,086::task::595::TaskManager.Task::(_updateState)
Task=`ebcd8e0a-54b1-43d2-92a2-ed9fd62d00fa`::moving from state init ->
state preparing
Thread-14::INFO::2014-10-21
14:16:50,086::logUtils::44::dispatcher::(wrapper) Run and protect:
repoStats(options=None)
Thread-14::INFO::2014-10-21
14:16:50,086::logUtils::47::dispatcher::(wrapper) Run and protect:
repoStats, Return response: {}
Thread-14::DEBUG::2014-10-21
14:16:50,087::task::1185::TaskManager.Task::(prepare)
Task=`ebcd8e0a-54b1-43d2-92a2-ed9fd62d00fa`::finished: {}
Thread-14::DEBUG::2014-10-21
14:16:50,087::task::595::TaskManager.Task::(_updateState)
Task=`ebcd8e0a-54b1-43d2-92a2-ed9fd62d00fa`::moving from state preparing ->
state finished
Thread-14::DEBUG::2014-10-21
14:16:50,087::resourceManager::940::ResourceManager.Owner::(releaseAll)
Owner.releaseAll requests {} resources {}
Thread-14::DEBUG::2014-10-21
14:16:50,087::resourceManager::977::ResourceManager.Owner::(cancelAll)
Owner.cancelAll requests {}
Thread-14::DEBUG::2014-10-21
14:16:50,087::task::990::TaskManager.Task::(_decref)
Task=`ebcd8e0a-54b1-43d2-92a2-ed9fd62d00fa`::ref 0 aborting False

What is there I can do to get my storage back online?  Right now my iSCSI
is master (something I did not want) which is odd considering the NFS data
domain was added as master when I setup oVirt.  Nothing will come back
until I get the master domain online and unsure what to do now.

Thanks,
- Trey

On Tue, Oct 21, 2014 at 12:58 PM, Trey Dockendorf <treydock at gmail.com>
wrote:

> I had a catastrophic failure of the IB switch that was used by all my
> storage domains.  I had one data domain that was NFS and one that was
> iSCSI. I managed to get the iSCSI LUN detached using the docs [1] but now I
> noticed that somehow my master domain went from the NFS domain to the iSCSI
> domain and I'm unable to switch them back.
>
> How does one change the master?  Right now I am having issues getting
> iSCSI over TCP to work, so am sort of stuck with 30 VMs down and an entire
> cluster inaccessible.
>
> Thanks,
> - Trey
>
> [1] http://www.ovirt.org/Features/Manage_Storage_Connections
>
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