[gpfsug-discuss] File_heat for GPFS File Systems

[Oesterlin, Robert]

Sure, if you use a policy to migrate between two tiers, it will move files up or down based on heat. Something like this (flas and disk pools):

rule grpdef GROUP POOL gpool IS flash LIMIT(75) THEN Disk
rule repack
  MIGRATE FROM POOL gpool TO POOL gpool
  WEIGHT(FILE_HEAT)


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


From: <gpfsug-discuss-bounces at spectrumscale.org> on behalf of Andreas Landhäußer <alandhae at gmx.de>
Reply-To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date: Tuesday, September 27, 2016 at 1:04 PM
To: Marc A Kaplan <makaplan at us.ibm.com>, gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: [EXTERNAL] Re: [gpfsug-discuss] File_heat for GPFS File Systems

as far as I understand, if a file gets hot again, there is no rule for putting the file back into a faster storage device?
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