[gpfsug-discuss] Is GPFS starting NSDs automatically?

Oesterlin, Robert Robert.Oesterlin at nuance.com
Wed Aug 9 13:48:00 BST 2017


Be careful here, as this does:

“When a disk experiences a failure and becomes unavailable, the recovery procedure will first attempt to restart the disk and if this fails, the disk is suspended and its data moved to other disks. “

Which may not be what you want to happen. :-) If you have disks marked down due to a transient failure, kicking of restripes to move the data off might not be the best choice.

Bob Oesterlin
Sr Principal Storage Engineer, Nuance




From: <gpfsug-discuss-bounces at spectrumscale.org> on behalf of Jan-Frode Myklebust <janfrode at tanso.net>
Reply-To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date: Wednesday, August 9, 2017 at 8:23 AM
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: [EXTERNAL] Re: [gpfsug-discuss] Is GPFS starting NSDs automatically?

If you do a "mmchconfig restripeOnDiskFailure=yes", such a callback will be added for node-join events.
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