[gpfsug-discuss] Removing LUN from host without unconfiguring GPFS filesystem

Harold Morales hmorales at optimizeit.co
Sun Jan 21 21:19:29 GMT 2018


Hello,

I have a GPFS cluster with two filesystems. The disks associated to one
filesystem reside on an old storage and the other filesystem disks reside
on a much more modern storage system. I have successfully moved data from
one fs to the other but there are questions about data integrity that still
need verification so the old filesystem needs somehow to be preserved.

My question is: Can I remove the old filesystem LUNs association to the
NSDs servers without removing spectrum scale filesystems, so that later on,
if necessary, I could associate them back and the old filesystem would be
operating as normal? If possible: what would be the general steps to
achieve this?

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Thank you,

Harold.
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