Oracle VM: The Pool Filesystem Not Mounted With Error 'init_pool_filesystem: mount physical pool FS failed - error Unable to online cluster.' (Doc ID 2554956.1)

Last updated on MARCH 29, 2022

Applies to:

Symptoms

Unable to mount pool filesystem and repositories.  The LUNs are presented and are in healthy state:

# multipath -ll
360060160ebf03e0046a71376698ce611 dm-6 DGC,VRAID
size=56G features='2 queue_if_no_path retain_attached_hw_handler' hwhandler='1 emc' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 2:0:0:0 sda 8:0 active ready running
| '- 1:0:1:0 sdk 8:160 active ready running
'-+- policy='round-robin 0' prio=10 status=enabled
|- 2:0:2:0 sdd 8:48 active ready running
'- 1:0:0:0 sdi 8:128 active ready running
360060160ebf03e004fc50d9b698ce611 dm-1 DGC,VRAID
size=6.0T features='2 queue_if_no_path retain_attached_hw_handler' hwhandler='1 emc' wp=rw
|-+- policy='round-robin 0' prio=50 status=active
| |- 2:0:2:1 sde 8:64 active ready running
| '- 1:0:0:1 sdj 8:144 active ready running
'-+- policy='round-robin 0' prio=10 status=enabled
|- 2:0:0:1 sdb 8:16 active ready running
'- 1:0:1:1 sdl 8:176 active ready running
3514f0c5c5e800059 dm-2 XtremIO,XtremApp
size=7.0T features='1 queue_if_no_path' hwhandler='0' wp=rw
'-+- policy='queue-length 0' prio=1 status=active
|- 2:0:3:1 sdf 8:80 active ready running
|- 2:0:5:1 sdh 8:112 active ready running
|- 1:0:4:1 sdo 8:224 active ready running
'- 1:0:5:1 sdp 8:240 active ready running

The cluster status shows as offline:

# service o2cb status
Driver for "configfs": Loaded
Filesystem "configfs": Mounted
Stack glue driver: Loaded
Stack plugin "o2cb": Loaded
Driver for "ocfs2_dlmfs": Loaded
Filesystem "ocfs2_dlmfs": Mounted
Checking O2CB cluster "ea13392db8ceab1d": Offline
Debug file system at /sys/kernel/debug: mounted
 

In ovs-agent.log, find messages similar to:

[2019-06-07 21:51:04 5248] DEBUG (ocfs2:399) init_pool_filesystem: mount physical pool FS failed - error Unable to online cluster.
[2019-06-07 21:51:04 5248] DEBUG (ocfs2:181) cluster debug: {'/sys/kernel/debug/o2dlm': [], '/sys/kernel/debug/o2net': ['connected_nodes', 'stats', 'sock_containers', 'send_tracking'], '/sys/kernel/debug/o2hb': ['failed_regions', 'quorum_regions', 'live_regions', 'livenodes'], 'service o2cb status': 'Driver for "configfs": Loaded\nFilesystem "configfs": Mounted\nStack glue driver: Loaded\nStack plugin "o2cb": Loaded\nDriver for "ocfs2_dlmfs": Loaded\nFilesystem "ocfs2_dlmfs": Mounted\nChecking O2CB cluster "ea13392db8ceab1d": Offline\nDebug file system at /sys/kernel/debug: mounted\n'}
[2019-06-07 21:51:05 5248] DEBUG (ocfs2:181) cluster debug: {'/sys/kernel/debug/o2dlm': [], '/sys/kernel/debug/o2net': ['connected_nodes', 'stats', 'sock_containers', 'send_tracking'], '/sys/kernel/debug/o2hb': ['failed_regions', 'quorum_regions', 'live_regions', 'livenodes'], 'service o2cb status': 'Driver for "configfs": Loaded\nFilesystem "configfs": Mounted\nStack glue driver: Loaded\nStack plugin "o2cb": Loaded\nDriver for "ocfs2_dlmfs": Loaded\nFilesystem "ocfs2_dlmfs": Mounted\nChecking O2CB cluster "ea13392db8ceab1d": Offline\nDebug file system at /sys/kernel/debug: mounted\n'}
[2019-06-07 21:51:05 5248] WARNING (startup:35) Error init pool filesystem: Unable to online cluster.
[2019-06-07 21:51:05 5248] WARNING (files:102) Error mount repository /dev/mapper/360060160ebf03e004fc50d9b698ce611 to /OVS/Repositories/0004fb000003000072d4b902c6add47c: Command: ['mount', '-t', 'ocfs2', '/dev/mapper/360060160ebf03e004fc50d9b698ce611', '/OVS/Repositories/0004fb000003000072d4b902c6add47c'] failed (1): stderr: mount.ocfs2: Cluster name is invalid while trying to join the group 
stdout:
[2019-06-07 21:51:05 5248] WARNING (files:102) Error mount repository /dev/mapper/3514f0c5c5e800059 to /OVS/Repositories/0004fb00000300006c5f72bbc04a8f65: Command: ['mount', '-t', 'ocfs2', '/dev/mapper/3514f0c5c5e800059', '/OVS/Repositories/0004fb00000300006c5f72bbc04a8f65'] failed (1): stderr: mount.ocfs2: Cluster name is invalid while trying to join the group

Changes

 The hostname of the Oracle VM Server was changed manually.

Cause

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