[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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> lustre-discuss at lists.lustre.org
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