Figured I'd throw in my "me too!" as well. We have ~3500 nodes and 60
gpfs server nodes and we've done several rounds of rolling upgrades
starting with 3.5.0.19 -> 3.5.0.24. We've had the cluster with a mix of
both versions for quite some time (We're actually in that state right
now as it would happen and have been for several months). I've not seen
any issue with it. Of course, as Richard alluded to, its good to check
the release notes :)
-Aaron
On 8/15/16 8:45 AM, Buterbaugh, Kevin L wrote:
Richard,
I will second what Bob said with one caveat … on one occasion we had an
issue with our multi-cluster setup because the PTF’s were incompatible.
However, that was clearly documented in the release notes, which we
obviously hadn’t read carefully enough.
While we generally do rolling upgrades over a two to three week period,
we have run for months with clients at differing PTF levels. HTHAL…
Kevin
On Aug 15, 2016, at 6:22 AM, Oesterlin, Robert
<[email protected] <mailto:[email protected]>> wrote:
In general, yes, it's common practice to do the 'rolling upgrades'. If
I had to do my whole cluster at once, with an outage, I'd probably
never upgrade. :)
Bob Oesterlin
Sr Storage Engineer, Nuance HPC Grid
*From: *<[email protected]
<mailto:[email protected]>> on behalf of
"Sobey, Richard A" <[email protected]
<mailto:[email protected]>>
*Reply-To: *gpfsug main discussion list
<[email protected]
<mailto:[email protected]>>
*Date: *Monday, August 15, 2016 at 4:59 AM
*To: *"'[email protected]
<mailto:[email protected]>'"
<[email protected]
<mailto:[email protected]>>
*Subject: *[EXTERNAL] [gpfsug-discuss] Minor GPFS versions coexistence
problems?
Hi all,
If I wanted to upgrade my NSD nodes one at a time from 3.5.0.22 to
3.5.0.27 (or whatever the latest in that branch is) am I ok to stagger
it over a few days, perhaps up to 2 weeks or will I run into problems
if they’re on different versions?
Cheers
Richard
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—
Kevin Buterbaugh - Senior System Administrator
Vanderbilt University - Advanced Computing Center for Research and Education
[email protected]
<mailto:[email protected]> - (615)875-9633
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Aaron Knister
NASA Center for Climate Simulation (Code 606.2)
Goddard Space Flight Center
(301) 286-2776
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