Hello,
I have been thinking about setting up a CES cluster on my GPFS custer
for easier data distribution. The cluster is quite an old one - since
3.4, but we have been doing rolling upgrades on it. 4.2.0 now, ~200
nodes Centos 7, Infiniband interconnected.
The problem is this little line in Spectrum Scale documentation:
The CES shared root directory cannot be changed when the cluster is up
and running. If you want to modify the shared root configuration, you
must bring the entire cluster down.
Does this mean that even the first time I'm setting CES up, I have to
pull down the whole cluster? I would understand this level of service
disruption when I already had set the directory before and now I was
changing it, but on an initial setup it's quite an inconvenience. Maybe
there's a less painful way for this?
Best regards,
--
Sander Kuusemets
University of Tartu, High Performance Computing
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