[gpfsug-discuss] SSD LUN setup

[Oesterlin, Robert]

Thinly provisioned (compressed) metadata volumes is unsupported according to IBM. See the GPFS FAQ here, question 4.12:

"Placing GPFS metadata on an NSD backed by a thinly provisioned volume is dangerous and unsupported."

http://www.ibm.com/support/knowledgecenter/en/STXKQY/gpfsclustersfaq.html

Bob Oesterlin
Sr Storage Engineer, Nuance HPC Grid
507-269-0413


From: <gpfsug-discuss-bounces at spectrumscale.org> on behalf of Brian Marshall <mimarsh2 at vt.edu>
Reply-To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date: Saturday, July 16, 2016 at 9:56 PM
To: "gpfsug-discuss at spectrumscale.org" <gpfsug-discuss at spectrumscale.org>
Subject: [EXTERNAL] [gpfsug-discuss] SSD LUN setup

I have read about other products doing RAID1 with deduplication and compression to take less than the 50% capacity hit.
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