Is there a recommended technique to cleanly completely shutdown a gpfs cluster so that maintenance of the underlying O/S can occur ?
I have tried the technique recommended in the GPFS documentation "Use the following information to shut down an IBM Spectrum Scale™ cluster in an emergency situation". However I am finding that when I restart the cluster occasionally an NSD will be in "Down" state and a "mmchdisk start" is required to bring the disk back into the cluster. This is especially a problem when sometimes it affects the cesroot disks and prevents the SMB service from starting. Also, for some of the large filesystems (10TB) in the cluster I manage running the chdisk command can take well over an hour.
(I am using GPFS 126.96.36.199 running on redhat 7.5)
Thanks in Advance