[Ocfs2-users] Catatonic nodes under SLES10

[Jeff Mahoney]

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Eckenfels. Bernd wrote:
> Hello,
> 
>> It's not at all about what your past activitiy was like. We fence to
> prevent future activity.
> 
> There is a lot you can do instead, including SCSI plugging the device o
> just setting a RO flag in the filesystem (remount-ro-on-error style).
> There might be times when it is needed to shoot the node in the head,
> but those are not handled by the self-panic anyway...

I wrote a userspace cluster interface for the SLES kernels using OCFS2.
You'd use the linux ha heartbeat cluster monitor to determine node
membership, and if it comes to a situation where a node needs to be
disconnected from the file system, you can perform an arbitrary
operation. You can kill that node's access via the FC switch fabric if
you like. I don't actually have any experience on how to set this up,
though, so I can't really be much more help than that.

- -Jeff

- --
Jeff Mahoney
SUSE Labs
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