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Re: [Linux-cluster] architecture discussion -- NFS clustering with iSCSI



On Jan 28, 2008 9:45 AM,  <gordan bobich net> wrote:
>
> > In an active-standby NFS cluster scenario, is GFS still required as
> > the format for the data drives?  I would be using a 2 node cluster so
> > I would need a quorum disk too.  Since only 1 node will have access at
> > any one time, could I get away with ext3 (or whatever) formatted
> > volumes?
>
> As long as you can absolutely guarantee that no more than 1 node will
> mount the volume, yes, you can use ext3.
>
> > Along the same note, I am going to ask an obvious question and answer
> > it myself.  :)   In an active-active, this would definitely need to be
> > GFS formatted, correct?
>
> Yes.
>
>
> Gordan
>

Only in very strange situations (bug) would 2 nodes want to read/write
to the same file.  That being said, the cluster service would also
prevent this too, correct?


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