Harold,
How big is the old file system, Spectrum Scale is going to throw a bunch of errors if you remove the luns from the old file system while attempting to keep the file system "data" on the luns. its likely to cause you all sorts of errors and potential data corruption. Its not something that I would recommend.
Can you do a backup of the old filesystem so you can do a restore of data if you need to?
Regards,
Andrew Beattie
Software Defined Storage - IT Specialist
Phone: 614-2133-7927
E-mail: [email protected]
----- Original message -----
From: Harold Morales <[email protected]>
Sent by: [email protected]
To: [email protected]
Cc:
Subject: [gpfsug-discuss] Removing LUN from host without unconfiguring GPFS filesystem
Date: Mon, Jan 22, 2018 7:20 AM
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?-----Thank you,Harold._______________________________________________
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