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RE: [Linux-cluster] Remove the clusterness from GFS

On Mon, 2007-01-08 at 11:26 -0800, Lin Shen (lshen) wrote:

> > 
> > If you absolutely can not have a bit of "cluster software 
> > running", you'll probably need to use a client/server 
> > approach like NFS instead of a cluster file system like GFS.
> How about Luster? It's a cluster file system, but seems to me it doesn't
> require much extra cluster software.

Lustre clients do not need to be cluster aware.  (Neither do NFS

If you are willing to sacrifice fault tolerance, you can run Lustre
without a cluster stack.

If you want fault tolerance, you have to go get a third-party cluster
stack, like heartbeat (or linux-cluster; but no one's done it AFAIK), to
provide the failover.  OSS/OST locations are stored in a replicated LDAP
database, which you must set up as well.

As a side note, I think HP was working on building a (non-Free) metadata
server cluster product for Lustre:


GFS has no concept of "client" and "server".  If you mount a GFS volume,
you need to be part of that file system's cluster.

-- Lon

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