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[PCA] LUN from internal ZFSSA no longer accessible. (Doc ID 2790094.1)

Last updated on JULY 07, 2021

Applies to:

Private Cloud Appliance - Version 2.3.1 and later
Linux x86-64

Symptoms

LUN from internal ZFSSA shows 'Warning' in the Storage Tab of Oracle VM Manager and is no longer accessible.
On the Compute Node, 'multipath -ll' shows 'failed faulty' state:
3600144f0914391590000601682b2000e dm-18 SUN,ZFS Storage 7370
size=8.0T features='0' hwhandler='1 alua' wp=rw
'-+- policy='round-robin 0' prio=0 status=enabled
'- 9:0:0:31 sds 65:32 failed faulty running
AdminServer.log shows the following error when trying to refresh the Storage:
####<2021-07-01T13:37:30.378+0000> <Info> <com.oracle.ovm.mgr.api.queuedjob.QueuedJob> <ovcamn05r1> <AdminServer> <Odof Tcp Client Thread: /127.0.0.1:54321/93> <> <> <e53497b7-d6f8-4030-b3ae-5a2395abbe09-00000004> <1625146650378> <BEA-000000> <Created queued child job: 1625146650356/QueuedSEDeviceSizeRefreshWithOptionsDbImpl: OVMJOB_1252J Multipath device size refresh for LUN 3600144f0914391590000601682b2000e on server ovcacn08r1/[InternalJobDbImpl] QueuedSEDeviceSizeRefreshWithOptionsDbImpl_1625146650355<10525>/t=1625146650356>
####<2021-07-01T13:37:30.378+0000> <Info> <com.oracle.ovm.mgr.api.queuedjob.QueuedJob> <ovcamn05r1> <AdminServer> <Odof Tcp Client Thread: /127.0.0.1:54321/108> <> <> <e53497b7-d6f8-4030-b3ae-5a2395abbe09-00000004> <1625146650378> <BEA-000000> <Created queued child job: 1625146650358/QueuedSEDeviceSizeRefreshWithOptionsDbImpl: OVMJOB_1252J Multipath device size refresh for LUN 3600144f0914391590000601682b2000e on server ovcacn07r1/[InternalJobDbImpl] QueuedSEDeviceSizeRefreshWithOptionsDbImpl_1625146650357<10526>/t=1625146650358>
####<2021-07-01T13:37:30.396+0000> <Info> <com.oracle.ovm.mgr.action.ActionEngine> <ovcamn05r1> <AdminServer> <Odof Tcp Client Thread: /127.0.0.1:54321/148150> <> <> <e53497b7-d6f8-4030-b3ae-5a2395abbe09-00000004> <1625146650396> <BEA-000000> <Sending command: [storage_plugin_deviceSizeRefresh oracle.generic.SCSIPlugin.GenericPlugin], to server: ovcacn08r1>
####<2021-07-01T13:37:30.407+0000> <Info> <com.oracle.ovm.mgr.action.ActionEngine> <ovcamn05r1> <AdminServer> <Odof Tcp Client Thread: /127.0.0.1:54321/148294> <> <> <e53497b7-d6f8-4030-b3ae-5a2395abbe09-00000004> <1625146650407> <BEA-000000> <Sending command: [storage_plugin_deviceSizeRefresh oracle.generic.SCSIPlugin.GenericPlugin], to server: ovcacn07r1>
####<2021-07-01T13:37:30.528+0000> <Error> <com.oracle.ovm.mgr.action.StoragePluginAction> <ovcamn05r1> <AdminServer> <Odof Tcp Client Thread: /127.0.0.1:54321/148150> <> <> <e53497b7-d6f8-4030-b3ae-5a2395abbe09-00000004> <1625146650528> <BEA-000000> <Storage Plugin action error. StorageServer: 0004fb0000090000f2551a6cf6638834, command: storage_plugin_deviceSizeRefresh
com.oracle.ovm.mgr.api.exception.FailedOperationException: OVMAPI_4010E Attempt to send command: storage_plugin_deviceSizeRefresh to server: ovcacn08r1 failed. OVMAPI_4004E Sync command failed on server: 192.168.32.6. Command: storage_plugin_deviceSizeRefresh,
Server error: org.apache.xmlrpc.XmlRpcException: <class 'OSCPlugin.OperationFailedEx'>:'Unable to refresh /dev/mapper/3600144f0914391590000601682b2000e, please ensure all path devices are active'

Changes

The Hostgroup (Initiator Group) of the LUN has been changed from 'OVM-igroup' to 'OVCA_UNMAPPED'.
The following evidence was found in the Support Bundle of the internal ZFSSA:

Views for 600144F0914391590000601682B2000E:
View Entry: 0
Host group : OVCA_UNMAPPED
Target Group : OVM
LUN : 5

2021-06-27.10:12:50 [internal property set txg:7138662] com.sun.ak:stmfoptions=version=2;hg=OVCA_UNMAPPED;tg=OVM;lunumber=
auto;assignednumber=5;status=online;fixednumber=true dataset = 1140 [user root on ovcasn01r1]

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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