Re: [HPDD-discuss] Lustre 2.6.0 vs 2.5.3 on production systems
We do run 2.6 on quite a few clients and 2.5.3 servers in production.
We did this on a set of clients initially for noticeable performance
improvements for some workloads. But it also has helped a bad problem
we've had with LU-5150 causing client crashes, so our 2.6 client use has
grown.
We are running a patched 2.5.3 on the server to try to deal with that
bug, but I don't think it really solved it. The 2.6 client works around
it and seems stable for us.
Scott
On 3/13/2015 8:49 AM, Bob Ball wrote:
Hi,
We are about to set up a new Lustre system here, and we are trying to
decide between using 2.5.3 or 2.6.0 . Files in our older 2.1.6 system
will simply be migrated over, and the old system tossed down the tubes.
Is anyone using 2.6.0 in production? I found this on some 2.6.0
performance data, and it looks rather discouraging.
https://jira.hpdd.intel.com/browse/LU-4841?filter=10828
I have also noticed that the 2.5.3 server rpms actually use a slightly
newer kernel than the 2.6.0 set. By and large, we will use zfs
underlying the OST.
So, I will gladly accept any advice on which way we should turn as we
set this up.
Thanks,
bob
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