[Linux-cluster] Remove the clusterness from GFS
Lin Shen (lshen)
lshen at cisco.com
Mon Jan 8 19:26:11 UTC 2007
> -----Original Message-----
> From: linux-cluster-bounces at redhat.com
> [mailto:linux-cluster-bounces at redhat.com] On Behalf Of Lon Hohberger
> Sent: Monday, January 08, 2007 10:50 AM
> To: linux clustering
> Subject: Re: [Linux-cluster] Remove the clusterness from GFS
>
> On Mon, 2007-01-08 at 10:39 -0800, Lin Shen (lshen) wrote:
> > How easy is it to
> > remove some or all of the clusterness from GFS such as
> fencing, cman
> > and ccsd stuff? I understand that things like dlm must stay
> for GFS to work.
>
> I would think it is very difficult.
>
> You can use GFS on *one* node without a cluster.
>
> In order to use a clustered file system, you need a cluster.
> The cluster acts as the control mechanism for accessing the
> file system.
> Without it, each computer accessing GFS will have no
> knowledge of when it is safe to write to or read from the
> file system. This will lead to file system corruption very quickly.
I thought that's the duty of DLM.
>
> 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.
Thanks
Lin
>
> -- Lon
>
More information about the Linux-cluster
mailing list