Re: active-pasive cluster in linux

From: LS Cheng <exriscer_at_gmail.com>
Date: Tue, 23 Feb 2010 09:35:14 +0100
Message-ID: <6e9345581002230035w3f9f3b6bnbbf2d08a0d99c55c_at_mail.gmail.com>

AFAIK Clusterware doesnt know about mounting and dismounting filesystems so are we still talking about Clusterware...?

Thanks

On Tue, Feb 23, 2010 at 12:26 AM, David Ballester <ballester.david_at_gmail.com
> wrote:

>
>
> 2010/2/22 LS Cheng <exriscer_at_gmail.com>
>
>> Hi
>>
>> You can use OCFS2 if you wish but basically you need some sort of Cluster
>> Filesystem or Volume Manager such as ASM.
>>
>> I dont mention OCFS2 because introducing two clustering software (OCFS2
>> and CRS) for a Single instance Active Passive solution is a bit too much in
>> my opinion that is why I said you are forced to use ASM (runs on top of
>> CRS).
>>
>> Thanks
>>
>>
> Or not use ocfs2 or any cluster filesystem, the only node that needs to
> have mounted the filesystems is the active one
>
> If you try to mount a non cluster filesystem in another node while is
> mounted in a first one, the other node should answer 'partition used' or
> something similar ( prevents corruption )
>
> when switching from nodes, as part of the automatic process, one node
> should umount and the other mount ( may be fsck first )
>
>
> Regards
>
>
> D.
>
>

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Received on Tue Feb 23 2010 - 02:35:14 CST