Re: [ovirt-users] Recovering iSCSI domain (Was: Changing iSCSI LUN host IP and changing master domain)

From: "Trey Dockendorf" <treydock(a)gmail.com&gt; To: "Sandra Taylor" <jtt77777(a)gmail.com&gt;, "users" <users(a)ovirt.org&gt; Sent: Tuesday, October 21, 2014 11:59:23 PM Subject: [ovirt-users] Recovering iSCSI domain (Was: Changing iSCSI LUN host IP and changing master domain) Somehow my NFS domain got to be master again. I went into the database and updated the connections for NFS and I noticed that once I updated the IP for the ISCSI in the "storage_server_connections" table that the interface kept moving "(master)" between the iSCSI and NFS domain...very odd. I did these commands and now NFS is up. update storage_server_connections set connection='10.0.0.10:/tank/ovirt/data' where id='a89fa66b-8737-4bb8-a089-d9067f61b58a'; update storage_server_connections set connection='10.0.0.10:/tank/ovirt/import_export' where id='521a8477-9e88-4f2d-96e2-d3667ec407df'; update storage_server_connections set connection='192.168.202.245:/tank/ovirt/iso' where id='fb55cfea-c7ef-49f2-b77f-16ddd2de0f7a'; update storage_server_connections set connection='10.0.0.10' where id='d6da7fbf-5056-44a7-9fc8-e76a1ff9f525'; Once I activated the NFS master domain all my other domains went to active, including iSCSI. My concern now is whether the iSCSI domain is usable. The API path at "/api/storagedomains/4eeb8415-c912-44bf-b482-2673849705c9/storageconnections" shows <storage_connections/> If I go to edit the iSCSI domain and check the LUN the warning I get is this: This operation might be unrecoverable and destructive! The following LUNs are already in use: - 1IET_00010001 (Used by VG: 3nxXNr-bIHu-9YS5-Kfzc-A2Na-sMhb-jihwdt) That alone makes me very hesitant to approve the operation. I could use some wisdom if this is safe or not. Thanks, - Trey On Tue, Oct 21, 2014 at 3:17 PM, Trey Dockendorf < treydock(a)gmail.com > wrote: 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(a)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(a)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(a)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 > > > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users