<font size=2 face="Arial">afmHashVersion=5 does not cause any performance
degradation, this hash version allows assigning a gateway for the fileset
using mmchfileset command. </font><font size=2 face="Calibri">This
option is not required for AFM home cluster(assuming that home is not a
cache for other home). It is needed only at the AFM cache cluster and
at client cluster if it remote mounts the AFM cache cluster.</font><font size=2 face="sans-serif">For changing afmHashVersion=5, all the nodes in the AFM cache and
client cluster have to be upgraded to the minimum 5.0.2 level. This option
cannot be set dynamically using -i/-I option, all the nodes in the both
AFM cache and client clusters have to be shutdown to set this option.
</font><font size=2 face="Arial">It is recommended to use 5.0.4-3 or later.
</font><br><br><a href="https://www.ibm.com/support/knowledgecenter/STXKQY_5.0.2/com.ibm.spectrum.scale.v5r02.doc/bl1adm_mmchconfig.htm"><font size=2 color=blue face="sans-serif">https://www.ibm.com/support/knowledgecenter/STXKQY_5.0.2/com.ibm.spectrum.scale.v5r02.doc/bl1adm_mmchconfig.htm</font></a><br><br><font size=2 face="sans-serif">~Venkat (vpuvvada@in.ibm.com)</font><br><br><br><br><font size=1 color=#5f5f5f face="sans-serif">From:
</font><font size=1 face="sans-serif">leslie elliott <leslie.james.elliott@gmail.com></font><br><font size=1 color=#5f5f5f face="sans-serif">To:
</font><font size=1 face="sans-serif">gpfsug main discussion
list <gpfsug-discuss@spectrumscale.org></font><br><font size=1 color=#5f5f5f face="sans-serif">Date:
</font><font size=1 face="sans-serif">04/04/2020 11:30 AM</font><br><font size=1 color=#5f5f5f face="sans-serif">Subject:
</font><font size=1 face="sans-serif">[EXTERNAL] [gpfsug-discuss]
afmHashVersion</font><br><font size=1 color=#5f5f5f face="sans-serif">Sent by:
</font><font size=1 face="sans-serif">gpfsug-discuss-bounces@spectrumscale.org</font><br><hr noshade><br><br><br><br><font size=3>I was wondering if there was any more information on the
different values for </font><br><font size=3>afmHashVersion </font><br><br><font size=3>the default value is 2 but if we want to assign an afmGateway
to </font><br><font size=3>a fileset we need a value of 5 </font><br><br><font size=3>is there likely to be any performance degradation because
of this change </font><br><br><font size=3>do the home cluster and the cache cluster both have
to be set to 5 for the </font><br><font size=3>fileset allocation to gateways</font><br><br><font size=3>just trying to find a little more information before we
try this on a production </font><br><font size=3>system with a large number of afm independent filesets </font><br><br><font size=3>leslie </font><tt><font size=2>_______________________________________________<br>gpfsug-discuss mailing list<br>gpfsug-discuss at spectrumscale.org<br></font></tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss"><tt><font size=2>http://gpfsug.org/mailman/listinfo/gpfsug-discuss</font></tt></a><tt><font size=2><br></font></tt><br><br><BR>