OCFS2 File System Resource Fails in HA2 Cluster

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Environment

SUSE Linux Enterprise Server 10

Situation

High Availability Release 2 (HA2) and Heartbeat

An OCFS2 file system is created as an HA2 cluster resource. However, the resource goes unmanaged and won't activate or mount the file system. The following errors were observed:

Filesystem[13751]: [13776]: INFO: 945791A78B0642C9B5AA7CE5FDBAD746: Activating node: nts123
lrmd: [3330]: info: RA output: (imgst:0:start:stderr) ln:
lrmd: [3330]: info: RA output: (imgst:0:start:stderr) creating symbolic link `/sys/kernel/config/cluster/ocfs2/heartbeat/945791A78B0642C9B5AA7CE5FDBAD746/nts123' to `/sys/kernel/config/cluster/ocfs2/node/nts123'
lrmd: [3330]: info: RA output: (imgst:0:start:stderr) : No such file or directory
lrmd: [3330]: info: RA output: (imgst:0:start:stderr)
Filesystem[13751]: [13778]: ERROR: /sys/kernel/config/cluster/ocfs2/node/nts123: failed to link

A directory listing shows the following:

# ls -l /sys/kernel/config/cluster/ocfs2/node/
total 0
drwxr-xr-x 2 root root 0 Aug 8 13:58 NTS123
drwxr-xr-x 2 root root 0 Aug 8 13:58 NTS124
drwxr-xr-x 2 root root 0 Aug 8 13:58 NTS126

Resolution

Change the node names to lowercase.

1. Edit /etc/ocfs2/cluster.conf on all nodes
2. Change the nodes names from mixed or uppercase to all lowercase
For example, change from

name = NTS123

to

name = nts123

3. Reboot all nodes

Additional Information

Heartbeat is looking for node names in lowercase. When creating an OCFS2 cluster with ocfs2console, you add nodes by typing in the node name. If you use upper or mixed case node names, it will cause this issue. Make sure you only use lowercase node names.

Disclaimer

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