You're running 2.10.4 clients against 2.5.34 servers? I believe there are notable lnet attrs that don't exist in 2.5.34. Maybe a Whamcloud wiz might chime in but I think that version mismatch might be problematic.
You can do a testbed upgrade to test taking a ldiskfs volume from 2.5.34 to 2.10.4, just to be conservative. --Jeff On Mon, Jul 23, 2018 at 10:05 AM, Paul Edmon <ped...@cfa.harvard.edu> wrote: > My apologies I meant 2.5.34 not 2.6.34. We'd like to get up to 2.10.4 > which is what our clients are running. Recently we upgraded our cluster to > CentOS7 which necessitated the client upgrade. Our storage servers though > stayed behind on 2.5.34. > > -Paul Edmon- > > On 07/23/2018 01:00 PM, Jeff Johnson wrote: > > Paul, > > 2.6.34 is a kernel version. What version of Lustre are you at now? Some > updates are easier than others. > > --Jeff > > On Mon, Jul 23, 2018 at 8:59 AM, Paul Edmon <ped...@cfa.harvard.edu> > wrote: > >> We have some old large scale Lustre installs that are running 2.6.34 and >> we want to get these up to the latest version of Lustre. I was curious if >> people in this group have any experience with doing this and if they could >> share them. How do you handle upgrades like this? How much time does it >> take? What are the pitfalls? How do you manage it with minimal customer >> interruption? Should we just write off upgrading and stand up new servers >> that are on the correct version (in which case we need to transfer the >> several PB's worth of data over to the new system)? >> >> Thanks for your wisdom. >> >> -Paul Edmon- >> >> _______________________________________________ >> Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing >> To change your subscription (digest mode or unsubscribe) visit >> http://www.beowulf.org/mailman/listinfo/beowulf >> > > > > -- > ------------------------------ > Jeff Johnson > Co-Founder > Aeon Computing > > jeff.john...@aeoncomputing.com > www.aeoncomputing.com > t: 858-412-3810 x1001 f: 858-412-3845 > m: 619-204-9061 > > 4170 Morena Boulevard, Suite C - San Diego, CA 92117 > > High-Performance Computing / Lustre Filesystems / Scale-out Storage > > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf > > > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf > > -- ------------------------------ Jeff Johnson Co-Founder Aeon Computing jeff.john...@aeoncomputing.com www.aeoncomputing.com t: 858-412-3810 x1001 f: 858-412-3845 m: 619-204-9061 4170 Morena Boulevard, Suite C - San Diego, CA 92117 High-Performance Computing / Lustre Filesystems / Scale-out Storage
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