Hi Richard, Is any of tool in https://www.ibm.com/developerworks/community/wikis/home?_escaped_fragment_=/wiki/General%2520Parallel%2520File%2520System%2520%2528GPFS%2529/page/Display%2520per%2520node%2520IO%2520statstics can help you?
BTW, I agree with Bob that 3.5 is out-of-service. Without an extended service, you should consider to upgrade your cluster as soon as possible. Regards, The Spectrum Scale (GPFS) team ------------------------------------------------------------------------------------------------------------------ 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 https://www.ibm.com/developerworks/community/forums/html/forum?id=11111111-0000-0000-0000-000000000479. 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. The forum is informally monitored as time permits and should not be used for priority messages to the Spectrum Scale (GPFS) team. From: "Oesterlin, Robert" <[email protected]> To: gpfsug main discussion list <[email protected]> Date: 09/19/2017 03:28 AM Subject: Re: [gpfsug-discuss] How to find which node is generating high iops in a GPFS 3.5 Sent by: [email protected] You do realize 3.5 is out of service, correct? You should be looking at upgrading :-) Catching this is real time, when you have a large number of nodes is going to be tough. How you recognizing that the file system is overloaded? Waiters? Looking at which nodes/NSDs have the longest/largest waiters may provide a clue. You might also take a look at mmpmon – it’s a bit difficult to use in its raw state, but it does provide some good stats on a per file system basis. But you need to track these over times to get what you need. Bob Oesterlin Sr Principal Storage Engineer, Nuance From: <[email protected]> on behalf of Richard Lefebvre <[email protected]> Reply-To: gpfsug main discussion list <[email protected]> Date: Monday, September 18, 2017 at 2:18 PM To: gpfsug <[email protected]> Subject: [EXTERNAL] [gpfsug-discuss] How to find which node is generating high iops in a GPFS 3.5 Hi I have a 3.5 GPFS system with 700+ nodes. I sometime have nodes that generate a lot of iops on the large file system but I cannot find the right tool to find which node is the source. I'm guessing under 4.2.X, there are now easy tools, but what can be done under GPFS 3.5. _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org https://urldefense.proofpoint.com/v2/url?u=http-3A__gpfsug.org_mailman_listinfo_gpfsug-2Ddiscuss&d=DwICAg&c=jf_iaSHvJObTbx-siA1ZOg&r=IbxtjdkPAM2Sbon4Lbbi4w&m=AYwUf61wv-Hq63KU7veQSxavdZy-e9eT9bkJFav8MVU&s=W42AQE74bvmOlw7P0D0wTqT0Rxop4KktnXeuDeGGdmk&e=
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