[lustre-discuss] Upgrading Lustre+ZFS

Riccardo Veraldi Riccardo.Veraldi at cnaf.infn.it
Mon Apr 10 15:49:50 PDT 2017


thanks I am about to proceed.

On 4/10/17 1:21 PM, Dilger, Andreas wrote:
> On Apr 6, 2017, at 09:24, Riccardo Veraldi <Riccardo.Veraldi at cnaf.infn.it> wrote:
>> Hello,
>>
>> I plan to upgrade both my MDS and OSS server which are now RHEL72 Lustre
>> 2.8.0 + ZFS 0.6.5.8 to RHEL73 Lustre 2.9.0 and ZFS 0.6.5.9.
>> I plan to first upgrade the MDS then the OSS server.
>> Is there any risk to lose data ?
>> My idea was to shut down lustre and upgrade the operating system and
>> then ZFS. Then upgrade lustre.
> This should be fine.  The on-disk format of Lustre is upward compatible.
>
> Cheers, Andreas
> --
> Andreas Dilger
> Lustre Principal Architect
> Intel Corporation
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