Hi Sunil

I'm trying to split up our big OCFS2 filesystem into 3 separate LUN's, since there are only a limited amount of nodes which need access to the different parts of the OCFS2 filesystem. One "Master" server with RW access should still be able to mount all 3 OCFS2 LUN's, all others would only mount one of the 3 LUN's in RO mode.

What i want is:
- Lowering the impact, when one node crashes and causes deadlocks on the filesystem for other nodes
- Lowering the impact, when we have to resize a OCFS2 volume
- Lowering the mastery time

Is there one master per filesystem or one master per cluster?
Would 3 separate filesystems under the same cluster be "separated" enough to achieve?

Kind regards,
Søren


On 27/04/2009, at 23.56, Sunil Mushran wrote:

While a node can only be in one cluster, it can be in many
different dlm domains (or lock name spaces), each of which
can have a different collection of nodes. But in the end,
the sum total of all nodes in all domains will still part
of one cluster.

What are you trying to do?

Sunil

Søren Kröger wrote:
Hi

i just read somewhere in the 1.2 OCFS2 documentation, that multiple clusters aren't supported.

However, this statement has been removed in the 1.4 OCFS2 documentation, but on the other hand i can't find any information on whether this is supported in 1.4 or not.
Does somebody have any additional information on this?

Thanks

Kind regards,
Søren

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