Hi GPFS team, Yes, that’s what we see, too … thanks.
Kevin — Kevin Buterbaugh - Senior System Administrator Vanderbilt University - Advanced Computing Center for Research and Education [email protected]<mailto:[email protected]> - (615)875-9633 On Jul 23, 2018, at 1:51 AM, IBM Spectrum Scale <[email protected]<mailto:[email protected]>> wrote: Hi Please check the IO type before examining the IP address for the output of mmdiag --iohist. For the "lcl"(local) IO, the IP address is not necessary and we don't show it. Please check whether this is your case. === mmdiag: iohist === I/O history: I/O start time RW Buf type disk:sectorNum nSec time ms Type Device/NSD ID NSD node --------------- -- ----------- ----------------- ----- ------- ---- ------------------ --------------- 01:14:08.450177 R inode 6:189513568 8 4.920 srv dm-4 192.168.116.92 01:14:08.450448 R inode 6:189513664 8 4.968 srv dm-4 192.168.116.92 01:14:08.475689 R inode 6:189428264 8 0.230 srv dm-4 192.168.116.92 01:14:08.983587 W logData 4:30686784 8 0.216 lcl dm-0 01:14:08.983601 W logData 3:25468480 8 0.197 lcl dm-8 01:14:08.983961 W inode 2:188808504 8 0.142 lcl dm-11 01:14:08.984144 W inode 1:188808504 8 0.134 lcl dm-7 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<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ibm.com%2Fdeveloperworks%2Fcommunity%2Fforums%2Fhtml%2Fforum%3Fid%3D11111111-0000-0000-0000-000000000479&data=02%7C01%7CKevin.Buterbaugh%40vanderbilt.edu%7Cbc6d7df8b9fb453b50bf08d5f068cc1d%7Cba5a7f39e3be4ab3b45067fa80faecad%7C0%7C0%7C636679255263961402&sdata=adR3hLlARxW6mIqw%2Fw4e29V6QgBtkOvkAH8RgN2Tgeg%3D&reserved=0>. 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. <graycol.gif>"Buterbaugh, Kevin L" ---07/11/2018 10:34:32 PM---Hi All, Quick question about “mmdiag —iohist” that is not documented in the man page … what does it From: "Buterbaugh, Kevin L" <[email protected]<mailto:[email protected]>> To: gpfsug main discussion list <[email protected]<mailto:[email protected]>> Date: 07/11/2018 10:34 PM Subject: [gpfsug-discuss] mmdiag --iohist question Sent by: [email protected]<mailto:[email protected]> ________________________________ Hi All, Quick question about “mmdiag —iohist” that is not documented in the man page … what does it mean if the client IP address field is blank? That the NSD server itself issued the I/O? Or ??? This only happens occasionally … and the way I discovered it was that our Python script that takes “mmdiag —iohist” output, looks up the client IP for any waits above the threshold, converts that to a hostname, and queries SLURM for whose jobs are on that client started occasionally throwing an exception … and when I started looking at the “mmdiag —iohist” output itself I do see times when there is no client IP address listed for a I/O wait. Thanks… Kevin — Kevin Buterbaugh - Senior System Administrator Vanderbilt University - Advanced Computing Center for Research and Education [email protected]<mailto:[email protected]> - (615)875-9633 _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org<http://spectrumscale.org> http://gpfsug.org/mailman/listinfo/gpfsug-discuss<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgpfsug.org%2Fmailman%2Flistinfo%2Fgpfsug-discuss&data=02%7C01%7CKevin.Buterbaugh%40vanderbilt.edu%7Cbc6d7df8b9fb453b50bf08d5f068cc1d%7Cba5a7f39e3be4ab3b45067fa80faecad%7C0%7C0%7C636679255263971410&sdata=UjU%2BSAOBf4P9oCdFRxatJ58blR9YOgDKes3Y2%2FYRzV4%3D&reserved=0> _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org<http://spectrumscale.org> https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fgpfsug.org%2Fmailman%2Flistinfo%2Fgpfsug-discuss&data=02%7C01%7CKevin.Buterbaugh%40vanderbilt.edu%7Cbc6d7df8b9fb453b50bf08d5f068cc1d%7Cba5a7f39e3be4ab3b45067fa80faecad%7C0%7C0%7C636679255264001433&sdata=uSiXYheeOw%2F4%2BSls8lP3XO9w7i7dFc3UWEYa%2F8aIn%2B0%3D&reserved=0
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