[OpenAFS] OpenAFS on ZFS (Was: Salvaging user volumes)

[Steven Presser]

Dan,
     Thanks.  Good to know someone is running a similar stack.

Steve

On 06/15/2013 03:24 AM, Dan Van Der Ster wrote:
> We deployed a ZFS on Linux server (on Scientific Linux) in the past week. Pretty simple stuff...the only non-default options are atime=off and recordsize=64K (which may be wrong, though some posts about ZFS and AFS suggest it).
>
> About Ceph, we had a test server serving an RBD /vicep partition. And it worked. We're still building up the Ceph cluster (primarily to provide OpenStack Cinder volumes) and once it is in production we plan to run a few virtualized AFS servers with Ceph volumes behind.
>
> All of this is in testing, and though we've not had deal breaking incidents, the long term stability is still in question.
>
> --
> Dan
> CERN IT
>
> Steven Presser<spresse1@acm.jhu.edu>  wrote:
>
>
> Out of pure curiosity, does anyone care to share experiences from
> running OpenAFS on ZFS?
>
> If any one is running OpenAFS on top of or in a cluster which also uses
> Ceph, would you care to share experience, as well as your architecture?
>
> Background:  I have 4 Thumpers (SunFire x4500s) with 48tb a pop and am
> wondering how best to set up my storage layer.  This cluster will both
> serve user files and be the backend for a VM cluster.
>
> Thanks,
> Steve
>
> On 06/14/2013 06:13 AM, Robert Milkowski wrote:
>>>    >>    ... And am I right in
>>>    >>    thinking that volumes shouldn't just show up as being>>    corrupt
>>> like this?  Should I be looking harder for some>>    kind of hardware
>>> problem?
>>>    >
>>>    >   Volumes shouldn't just show up as corrupt like that, yes.
>>>
>>> It now looks like it's a hardware problem with the SAN storage for that
>>> viceb partition.  Ouch.
>> And this is one of the reasons why ZFS is so cool :)
>>
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