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Re: [Linux-cluster] storage clustering without SAN



hi,
i think that u want ur local file sytem to act like san ,isn't it?
If you really want ur file system to be accessed by different nodes simultaneously, then a cluster file system is best and u must have it.
To make ur local filesytem act like san, u can use gnbd or iscsi.

the lock managers like dlm are used for gfs.No need if u dont deploy one.
regards,
Nirmal Tom.



From: Shailesh <shailesh verismonetworks com>
Reply-To: linux clustering <linux-cluster redhat com>
To: linux clustering <linux-cluster redhat com>
Subject: Re: [Linux-cluster] storage clustering without SAN
Date: Thu, 22 Mar 2007 11:31:45 +0530

I thank you for your response...

On reading your response I get that  the cluster suite can be
used independant of the File-system and is not tied to any particular
file system.

So I should be able to share the local disk space of a node using
NFS/CIFS to other nodes with all nodes under RHCS, right?

Also in such a scenario ,a lock manager will not be needed isnt it ?

- Shailesh

On Wed, 2007-03-21 at 09:11 -0500, Robert Peterson wrote:
> Shailesh wrote:
> > Hi Everyone,
> >              I am looking for a storage solution where there is NO
> > common storage area like a SAN. But just a bunch of PC clustered togther
> > with their internal disk space used collectively as a storage area.
> >
> > Can you suggest me any information that talks about such an
> > architecture ?
> >
> > Can I use the redhat clustering suite with these bunch of PC
> > connected on a ethernet network ?
> >
> > Do I have to use GFS , if RHCS is employed ?
> >
> > I'll appreciate your answer to the above.
> >
> > Thanks & Regards
> > Shailesh P S
>
> Hi Shailesh,
>
> If your storage is not shared, what exactly do you mean by "used
> collectively"?
>
> You can use the cluster suite to cluster a bunch of PCs together
> so they cooperate, provide High Availability services (through
> rgmanager) and so forth, regardless of whether you use GFS.
>
> If your storage isn't shared between the systems, you don't
> need GFS.
>
> Regards,
>
> Bob Peterson
> Red Hat Cluster Suite
>
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>

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