No, the first time you define it, I'm pretty sure can be done online. But when changing it later, it will require the stopping the full cluster first.
-jf man. 5. des. 2016 kl. 15.26 skrev Sander Kuusemets <[email protected]>: > 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 > > > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss >
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