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Re: [Linux-cluster] using lacie ethernet disk raid as shared storage



On Thursday 25 June 2009 12:38:04 ESGLinux wrote:
> Hi Gordan,
> thanks for your answer,
>
> I can mount this disk with NFS (also with CIFS but I´m not using this
> protocol)
>
> My idea was to mount the disk with NFS on the 2 nodes of a red hat cluster,
> but I don´t know if it is a good idea. (perhaps no :-( )
>
> The cluster are going to serve a HA httpd service (I know, with this disk I
> have a SPOF, but that is all I have, no money for more .-(( )
>
> any suggestion with this scenario?

I *know* that's not your question, but have you think about using local disks 
on each server, with DRBD for the replication ? This would eliminate the SPOF 
and it's still cost effective (perhaps more than one lassie NAS ... ? I don't 
know).

>
> Thanks again,
>
> ESG
>
>
> 2009/6/25 Gordan Bobic <gordan bobich net>
>
> > On Thu, 25 Jun 2009 10:06:22 +0200, ESGLinux <esggrupos gmail com> wrote:
> > > Hi all,
> > > I have a customer with has a Lacie Ethernet Disk RAID and wants to use
> > > it as a shared storage to use in a HA cluster.
> > >
> > > Which can be the best approach to use this kind of storage? (iscsi,
> > > gnbd, nfs... ???)
> >
> > I don't imagine for a moment that any of those would be supported,
> > considering the target audience is unlikely to ever have heard of those
> > protocols. It's likely to give you SMB/CIFS and nothing else. There's no
> > reason why you couldn't use it for shared storage, but that is in no way
> > related to RHCS.
> >
> > Also remember that a single SAN/NAS of whatever description is still a
> > single point of failure, which makes a mockery of the concept of HA. This
> > is also (shockingly) a point (willfully) overlooked by most
> > administrators and architects.
> >
> > --
> > Linux-cluster mailing list
> > Linux-cluster redhat com
> > https://www.redhat.com/mailman/listinfo/linux-cluster

-- 
Xavier Montagutelli                      Tel : +33 (0)5 55 45 77 20
Service Commun Informatique              Fax : +33 (0)5 55 45 75 95
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