[Ocfs2-users] Multiple clusters per node?

[Søren Kröger]

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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