I need to migrate several sets of user home directories from an old NFS
file server to a new NFS file server. Each group of users belong to
specific Slurm accounts organized in a hierarchical tree.
I want to make the migration while the cluster is in full production mode
for all the other accounts (the terms "service window" or "downtime" don't
exist for me :-)
My idea is to make a Slurm reservation so that the accounts in question
will have zero jobs running during the reservation, and I also need to
kick users off the login nodes. During the reservation I can rsync the
home directories from the old NFS server to the new NFS server and update
the NFS automounter links.
Question: Does anyone have experiences with this type of scenario? Any
good ideas or suggestions for other methods for data migration?
Thanks,
Ole
--
Ole Holm Nielsen
PhD, Senior HPC Officer
Department of Physics, Technical University of Denmark
