Thank you Jens
Perhaps I need to clarify. I have OCFS2 running on Dom0 the virtual
machines are stored on OCFS2 volumes on an iscsi mounted san
i was initially over thinking this process, information is available at
i have done the following:
create a vm configured with iscsi and multipath, install and configure
ocfs2 and then
have the vm mount the san by-id
this at first glance works!
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 ocfs2: Online
Heartbeat dead threshold = 31
Network idle timeout: 30000
Network keepalive delay: 2000
Network reconnect delay: 2000
Checking O2CB heartbeat: Not active
mount -t ocfs2 /dev/disk/by-id/dm-uuid-mpath-222a70001551ff7b6 /mnt
i initially got the message
mount.ocfs2: Cluster stack specified does not match the one currently
running while trying to join the group
this has an easy remedy. I needed to reformat the ocfs2 volume for this
cluster and it works.
i was concerned that i would need some form of heartbeat and
distributed file lock installed. Maybe i still do?
i assume it uses the DLM in the kernel.
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