<span style=" font-size:12pt;font-family:Arial">Bob, like most questions
of this time I think the answer depends on a number of variables. Generally
we do not recommend running the mmcheckquota command during the peak usage
of your Spectrum Scale system. As I think you know the command will
increase the IO to the NSDs that hold metadata and the number of NSDs that
hold metadata will contribute to the time it takes for the command to complete,
i.e. more metadata NSDs should improve the overall execution time.</span><br><br><span style=" font-size:10pt;font-family:sans-serif">Regards, The Spectrum
Scale (GPFS) team<br><br>------------------------------------------------------------------------------------------------------------------<br>If you feel that your question can benefit other users of Spectrum
Scale (GPFS), then please post it to the public IBM developerWroks Forum
at </span><a href="https://www.ibm.com/developerworks/community/forums/html/forum?id=11111111-0000-0000-0000-000000000479"><span style=" font-size:10pt;font-family:sans-serif">https://www.ibm.com/developerworks/community/forums/html/forum?id=11111111-0000-0000-0000-000000000479</span></a><span style=" font-size:10pt;font-family:sans-serif">.
<br><br>If your query concerns a potential software error in Spectrum Scale (GPFS)
and you have an IBM software maintenance contract please contact 1-800-237-5511
in the United States or your local IBM Service Center in other countries.
<br><br>The forum is informally monitored as time permits and should not be used
for priority messages to the Spectrum Scale (GPFS) team.</span><br><br><br><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">From:
</span><span style=" font-size:9pt;font-family:sans-serif">"Oesterlin,
Robert" <Robert.Oesterlin@nuance.com></span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">To:
</span><span style=" font-size:9pt;font-family:sans-serif">gpfsug
main discussion list <gpfsug-discuss@spectrumscale.org></span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Date:
</span><span style=" font-size:9pt;font-family:sans-serif">08/16/2019
11:57 AM</span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Subject:
</span><span style=" font-size:9pt;font-family:sans-serif">[EXTERNAL]
[gpfsug-discuss] Running mmcheckquota on a file system with 1.3B
files</span><br><span style=" font-size:9pt;color:#5f5f5f;font-family:sans-serif">Sent
by: </span><span style=" font-size:9pt;font-family:sans-serif">gpfsug-discuss-bounces@spectrumscale.org</span><br><hr noshade><br><br><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:sans-serif">I
want to run mmcheckquota on a file system I have on my ESS. It has 1.3B
files. Obviously it will take a long time, but I’m looking for anyone
who has guidance running this command on a large file system, what I should
expect for IO load. </span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:sans-serif"> </span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:sans-serif">-
Should I set QOS to minimize impact? </span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:sans-serif">-
Run directly on the ESS IO nodes, or some other nodes?</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:11pt;font-family:sans-serif"> </span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:sans-serif">Bob
Oesterlin</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:sans-serif">Sr
Principal Storage Engineer, Nuance</span></p><p style="margin-top:0px;margin-Bottom:0px"><span style=" font-size:12pt;font-family:sans-serif"> </span><tt><span style=" font-size:10pt">_______________________________________________<br>gpfsug-discuss mailing list<br>gpfsug-discuss at spectrumscale.org<br></span></tt><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss"><tt><span style=" font-size:10pt">http://gpfsug.org/mailman/listinfo/gpfsug-discuss</span></tt></a><tt><span style=" font-size:10pt"><br></span></tt></p><p style="margin-top:0px;margin-Bottom:0px"></p><p style="margin-top:0px;margin-Bottom:0px"></p><BR>