[gpfsug-discuss] CNFS

[Vic Cornell]

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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> 
> 
> -- 
>            --
>   Dr Orlando Richards
>  Information Services
> IT Infrastructure Division
>       Unix Section
>    Tel: 0131 650 4994
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