[gpfsug-discuss] Running multiple mmrestripefs in a singlecluster?
Marc A Kaplan
makaplan at us.ibm.com
Wed Mar 15 20:33:19 GMT 2017
You can control the load of mmrestripefs (and all maintenance commands) on
your system using mmchqos ...
From: "Olaf Weiser" <olaf.weiser at de.ibm.com>
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date: 03/15/2017 04:04 PM
Subject: Re: [gpfsug-discuss] Running multiple mmrestripefs in a
single cluster?
Sent by: gpfsug-discuss-bounces at spectrumscale.org
yes.. and please be carefully about the number of nodes , doing the job
because of multiple PIT worker hammering against your data
if you limit the restripe to 2 nodes (-N ......) of adjust the
PITworker down to 8 or even 4 ... you can run multiple restripes..
without hurting the application workload to much ... but the final
duration of your restripe then will be affected
cheers
From: "Oesterlin, Robert" <Robert.Oesterlin at nuance.com>
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date: 03/15/2017 03:27 PM
Subject: [gpfsug-discuss] Running multiple mmrestripefs in a single
cluster?
Sent by: gpfsug-discuss-bounces at spectrumscale.org
I’m looking at migrating multiple file systems from one set of NSDs to
another. Assuming I put aside any potential IO bottlenecks, has anyone
tried running multiple “mmrestripefs” commands in a single cluster?
Bob Oesterlin
Sr Principal Storage Engineer, Nuance
507-269-0413
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