[lustre-discuss] Lustre clients and Lustre servers (MDS/OSS) operating system requirements?
Brian Andrus
toomuchit at gmail.com
Sun Oct 8 08:18:11 PDT 2017
Hmm. Well, I used to take care of the cluster at the Naval Postgraduate
School, and I would always upgrade both. When we went to 7, it was on
the Luster servers first (the nodes were on 6).
The only thing I could guess is a FUD factor (Fear-Uncertainty-Doubt).
We did several kernel upgrades without an issue.
I expect the concern is about data loss, but the path has been traveled
by many very large instances, so with a proper plan, there is no worry.
Brian Andrus
On 10/8/2017 4:42 AM, Jones, Peter A wrote:
> Hmm. Perhaps one of the end user sites will speak up with something
> that they have tried successfully but I cannot think of anyone that I
> have heard running RHEL 5.x on the Lustre servers but RHEL 7.x on the
> Lustre clients. Why os there a reluctance to upgrade the OS on the
> storage servers? Is it older storage not supported on supported with
> newer version of RHEL?
>
> On 2017-10-07, 10:59 PM, "lustre-discuss on behalf of Amjad Syed"
> <lustre-discuss-bounces at lists.lustre.org
> <mailto:lustre-discuss-bounces at lists.lustre.org> on behalf of
> amjadcsu at gmail.com <mailto:amjadcsu at gmail.com>> wrote:
>
> Hello,
> We have an existing HPC running Lustre 1.8.7 on RHEL 5.4
> The Lustre servers (MDS and OSS) are all running RHEL 5.4
> The Lustre clients(HPC compute nodes) are also running RHEL 5.4
> Now the management has decided to upgrade the compute nodes to RHEL 7.
> But they do not want to upgrade the OS of Lustre Servers which is
> still RHEL 5.4
> So the question is will this configuration work where the Lustre
> clients are RHEL 7 and Lustre server are all running RHEL 5.4?
>
> Thanks.
>
>
>
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