[gpfsug-discuss] CNFS

Wed Dec 5 11:56:57 GMT 2012

Hi
     we use CNFS for NFS, and ctdb for samba with no problems. However if I
had my time again I'd probably just run with ctdb as the reports of it are
good and there is no point running two applications when one will do.

Thanks

Bob

On 5 December 2012 11:38, Vic Cornell <viccornell at gmail.com> wrote:

> I've used cNFS and we are installing it at Welcome Trust in Oxford.
>
> It seems well integrated and the failover works pretty well - subject to
> Orlando's reservations about heartbeats.
>
> Vic Cornell
> viccornell at gmail.com
>
>
> On 5 Dec 2012, at 12:31, Orlando Richards <orlando.richards at ed.ac.uk>
> wrote:
>
> > Hi Chris,
> >
> > Bristol use CNFS - I've cc'd Bob (who might not be on the gpfsug-discuss
> list).
> >
> > For what it's worth - we use CTDB for NFS as well as CIFS, and are happy
> enough with it, but we've not compared it to CNFS in anger.
> >
> > --
> > Orlando
> >
> > On 03/12/12 17:19, McLaughlin, Sandra M wrote:
> >> Hi Chris,
> >>
> >> I wasn’t in Liverpool last week – but I am currently using CNFS on top
> >> of GPFS. It seems to work OK, but I am not exactly pushing it, and I
> >> have not rigorously tested the failover (I am only using it for a couple
> >> of test scratch areas at the moment). It was very easy to setup (except
> >> that since we do not run the DNS here at AZ, we couldn’t get a round
> >> robin DNS entry setup, so we have to explicitly point clients at one of
> >> the servers).
> >>
> >> When I asked a couple of questions about CNFS at the GPFS users meeting
> >> at Daresbury earlier this year, there were people who were using it, but
> >> it seemed to me that the general consensus was that people preferred
> >> using CTDB to get highly-available NFS and CIFS serving. I am just about
> >> to take delivery of a new V7000 and new NSDs, so I plan to try out CTDB
> >> with this.
> >>
> >> Regards, Sandra.
> >>
> >> *Sandra McLaughlin*
> >>
> >> Scientific Computing Specialist
> >>
> >> ___________________________________________________
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> >> *From:*gpfsug-discuss-bounces at gpfsug.org
> >> [mailto:gpfsug-discuss-bounces at gpfsug.org] *On Behalf Of *Edsall,
> >> Christopher J.
> >> *Sent:* 03 December 2012 16:43
> >> *To:* gpfsug-discuss at gpfsug.org
> >> *Subject:* [gpfsug-discuss] CNFS
> >>
> >> Hi All,
> >>
> >> It was good to meet those of you who made it to the meeting in Liverpool
> >> last week.
> >>
> >> Something I should have asked there but forgot is: has anyone tried CNFS
> >> on top of GPFS?
> >>
> >> (http://www.redbooks.ibm.com/abstracts/redp4400.html )
> >>
> >> If so, what are your thoughts?
> >>
> >> Cheers,
> >>
> >> Chris Edsall
> >>
> >> IT Systems Manager
> >>
> >> National Oceanography Centre, Southampton
> >>
> >> +44 (0)23 8059 6034
> >>
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> >>
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> >>
> >
> >
> > --
> >            --
> >   Dr Orlando Richards
> >  Information Services
> > IT Infrastructure Division
> >       Unix Section
> >    Tel: 0131 650 4994
> >
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>

-- 

Bob Cregan

Senior Storage Systems Administrator

ACRC

Bristol University

Tel:     +44 (0) 117 331 4406

skype:  bobcregan

Mobile: +44 (0) 7712388129
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