John,

Thanks for reply.  The Discover function in GUI works...it's once I try and login (Click the array next to target) that things just hang indefinitely.

# iscsiadm -m session
tcp: [2] 10.0.0.10:3260,1 iqn.2014-04.edu.tamu.brazos.vmstore1:ovirt-data_iscsi

# iscsiadm -m node
10.0.0.10:3260,1 iqn.2014-04.edu.tamu.brazos.vmstore1:ovirt-data_iscsi

# multipath -ll
1IET_00010001 dm-3 IET,VIRTUAL-DISK
size=500G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  `- 8:0:0:1 sdd 8:48 active ready running
1ATA_WDC_WD5003ABYZ-011FA0_WD-WMAYP0DNSAEZ dm-2 ATA,WDC WD5003ABYZ-0
size=466G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  `- 3:0:0:0 sdc 8:32 active ready running

The first entry, 1IET_00010001 is the iSCSI LUN.

The log when I click the array in the interface for the target is this:

Thread-14::DEBUG::2014-10-21 15:12:49,900::BindingXMLRPC::251::vds::(wrapper) client [192.168.202.99] flowID [7177dafe]
Thread-14::DEBUG::2014-10-21 15:12:49,901::task::595::TaskManager.Task::(_updateState) Task=`01d8d01e-8bfd-4764-890f-2026fdeb78d9`::moving from state init -> state preparing
Thread-14::INFO::2014-10-21 15:12:49,901::logUtils::44::dispatcher::(wrapper) Run and protect: connectStorageServer(domType=3, spUUID='00000000-0000-0000-0000-000000000000', conList=[{'connection': '10.0.0.10', 'iqn': 'iqn.2014-04.edu.tamu.brazos.)
Thread-14::DEBUG::2014-10-21 15:12:49,902::iscsiadm::92::Storage.Misc.excCmd::(_runCmd) '/usr/bin/sudo -n /sbin/iscsiadm -m node -T iqn.2014-04.edu.tamu.brazos.vmstore1:ovirt-data_iscsi -I default -p 10.0.0.10:3260,1 --op=new' (cwd None)
Thread-14::DEBUG::2014-10-21 15:12:56,684::iscsiadm::92::Storage.Misc.excCmd::(_runCmd) SUCCESS: <err> = ''; <rc> = 0
Thread-14::DEBUG::2014-10-21 15:12:56,685::iscsiadm::92::Storage.Misc.excCmd::(_runCmd) '/usr/bin/sudo -n /sbin/iscsiadm -m node -T iqn.2014-04.edu.tamu.brazos.vmstore1:ovirt-data_iscsi -I default -p 10.0.0.10:3260,1 -l' (cwd None)
Thread-14::DEBUG::2014-10-21 15:12:56,711::iscsiadm::92::Storage.Misc.excCmd::(_runCmd) SUCCESS: <err> = ''; <rc> = 0
Thread-14::DEBUG::2014-10-21 15:12:56,711::iscsiadm::92::Storage.Misc.excCmd::(_runCmd) '/usr/bin/sudo -n /sbin/iscsiadm -m node -T iqn.2014-04.edu.tamu.brazos.vmstore1:ovirt-data_iscsi -I default -p 10.0.0.10:3260,1 -n node.startup -v manual --op)
Thread-14::DEBUG::2014-10-21 15:12:56,767::iscsiadm::92::Storage.Misc.excCmd::(_runCmd) SUCCESS: <err> = ''; <rc> = 0
Thread-14::DEBUG::2014-10-21 15:12:56,767::lvm::373::OperationMutex::(_reloadvgs) Operation 'lvm reload operation' got the operation mutex
Thread-14::DEBUG::2014-10-21 15:12:56,768::lvm::296::Storage.Misc.excCmd::(cmd) '/usr/bin/sudo -n /sbin/lvm vgs --config " devices { preferred_names = [\\"^/dev/mapper/\\"] ignore_suspended_devices=1 write_cache_state=0 disable_after_error_count=3)
Thread-14::DEBUG::2014-10-21 15:12:56,968::lvm::296::Storage.Misc.excCmd::(cmd) SUCCESS: <err> = '  No volume groups found\n'; <rc> = 0
Thread-14::DEBUG::2014-10-21 15:12:56,969::lvm::415::OperationMutex::(_reloadvgs) Operation 'lvm reload operation' released the operation mutex
Thread-14::DEBUG::2014-10-21 15:12:56,974::hsm::2352::Storage.HSM::(__prefetchDomains) Found SD uuids: ()
Thread-14::DEBUG::2014-10-21 15:12:56,974::hsm::2408::Storage.HSM::(connectStorageServer) knownSDs: {}
Thread-14::INFO::2014-10-21 15:12:56,974::logUtils::47::dispatcher::(wrapper) Run and protect: connectStorageServer, Return response: {'statuslist': [{'status': 0, 'id': '00000000-0000-0000-0000-000000000000'}]}
Thread-14::DEBUG::2014-10-21 15:12:56,974::task::1185::TaskManager.Task::(prepare) Task=`01d8d01e-8bfd-4764-890f-2026fdeb78d9`::finished: {'statuslist': [{'status': 0, 'id': '00000000-0000-0000-0000-000000000000'}]}
Thread-14::DEBUG::2014-10-21 15:12:56,975::task::595::TaskManager.Task::(_updateState) Task=`01d8d01e-8bfd-4764-890f-2026fdeb78d9`::moving from state preparing -> state finished
Thread-14::DEBUG::2014-10-21 15:12:56,975::resourceManager::940::ResourceManager.Owner::(releaseAll) Owner.releaseAll requests {} resources {}
Thread-14::DEBUG::2014-10-21 15:12:56,975::resourceManager::977::ResourceManager.Owner::(cancelAll) Owner.cancelAll requests {}
Thread-14::DEBUG::2014-10-21 15:12:56,975::task::990::TaskManager.Task::(_decref) Task=`01d8d01e-8bfd-4764-890f-2026fdeb78d9`::ref 0 aborting False
Thread-13::DEBUG::2014-10-21 15:13:18,281::task::595::TaskManager.Task::(_updateState) Task=`8674b6b0-5e4c-4f0c-8b6b-c5fa5fef6126`::moving from state init -> state preparing
Thread-13::INFO::2014-10-21 15:13:18,281::logUtils::44::dispatcher::(wrapper) Run and protect: repoStats(options=None)
Thread-13::INFO::2014-10-21 15:13:18,282::logUtils::47::dispatcher::(wrapper) Run and protect: repoStats, Return response: {}
Thread-13::DEBUG::2014-10-21 15:13:18,282::task::1185::TaskManager.Task::(prepare) Task=`8674b6b0-5e4c-4f0c-8b6b-c5fa5fef6126`::finished: {}
Thread-13::DEBUG::2014-10-21 15:13:18,282::task::595::TaskManager.Task::(_updateState) Task=`8674b6b0-5e4c-4f0c-8b6b-c5fa5fef6126`::moving from state preparing -> state finished
Thread-13::DEBUG::2014-10-21 15:13:18,282::resourceManager::940::ResourceManager.Owner::(releaseAll) Owner.releaseAll requests {} resources {}
Thread-13::DEBUG::2014-10-21 15:13:18,282::resourceManager::977::ResourceManager.Owner::(cancelAll) Owner.cancelAll requests {}
Thread-13::DEBUG::2014-10-21 15:13:18,283::task::990::TaskManager.Task::(_decref) Task=`8674b6b0-5e4c-4f0c-8b6b-c5fa5fef6126`::ref 0 aborting False

The lines prefixed with "Thread-13" just repeat over and over only changing the Task value.

Unsure what could be done to restore things.  The iscsi connection is good and I'm able to see the logical volumes:

# lvscan
  ACTIVE            '/dev/4eeb8415-c912-44bf-b482-2673849705c9/metadata' [512.00 MiB] inherit
  ACTIVE            '/dev/4eeb8415-c912-44bf-b482-2673849705c9/leases' [2.00 GiB] inherit
  ACTIVE            '/dev/4eeb8415-c912-44bf-b482-2673849705c9/ids' [128.00 MiB] inherit
  ACTIVE            '/dev/4eeb8415-c912-44bf-b482-2673849705c9/inbox' [128.00 MiB] inherit
  ACTIVE            '/dev/4eeb8415-c912-44bf-b482-2673849705c9/outbox' [128.00 MiB] inherit
  ACTIVE            '/dev/4eeb8415-c912-44bf-b482-2673849705c9/master' [1.00 GiB] inherit
  inactive          '/dev/4eeb8415-c912-44bf-b482-2673849705c9/aced9726-5a28-4d52-96f5-89553ba770af' [100.00 GiB] inherit
  inactive          '/dev/4eeb8415-c912-44bf-b482-2673849705c9/87bf28aa-be25-4a93-9b23-f70bfd8accc0' [1.00 GiB] inherit
  inactive          '/dev/4eeb8415-c912-44bf-b482-2673849705c9/27256587-bf87-4519-89e7-260e13697de3' [20.00 GiB] inherit
  inactive          '/dev/4eeb8415-c912-44bf-b482-2673849705c9/ac2cb7f9-1df9-43dc-9fda-8a9958ef970f' [20.00 GiB] inherit
  inactive          '/dev/4eeb8415-c912-44bf-b482-2673849705c9/d8c41f05-006a-492b-8e5f-101c4e113b28' [100.00 GiB] inherit
  inactive          '/dev/4eeb8415-c912-44bf-b482-2673849705c9/83f17e9b-183e-4bad-ada5-bcef1c5c8e6a' [20.00 GiB] inherit
  inactive          '/dev/4eeb8415-c912-44bf-b482-2673849705c9/cf79052e-b4ef-4bda-96dc-c53b7c2acfb5' [20.00 GiB] inherit
  ACTIVE            '/dev/vg_ovirtnode02/lv_swap' [46.59 GiB] inherit
  ACTIVE            '/dev/vg_ovirtnode02/lv_root' [418.53 GiB] inherit

Thanks,
- Trey



On Tue, Oct 21, 2014 at 2:49 PM, Sandra Taylor <jtt77777@gmail.com> wrote:
Hi Trey,
Sorry for your trouble.
Don't know if I can help but I run iscsi here as my primary domain so
I've had some experience with it.
I don't know the answer to the master domain question.

Does iscsi show connected  using iscsiadm -m session and   -m node  ?
in the vdsm log there should be the iscsiadm commands that were
executed to connect.
Does multipath -ll show anything?

-John

On Tue, Oct 21, 2014 at 3:18 PM, Trey Dockendorf <treydock@gmail.com> wrote:
> 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@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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