Hi Kevin,
I'm running policy migrations on Spectrum Scale 4.2.3, but I use mmapplypolicy
to kick off the policy runs, not mmstartpolicy. Docs here (which I admit are
not for your version of Spectrum Scale) state that mmstartpolicy is for
internal GPFS use only:
https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/General+Parallel+File+System+(GPFS)/page/Using+Policies
So if the above link is correct, I'd recommend switching to using
mmapplypolicy, which handily comes with a man page, whereas mmstartpolicy
doesn't and might have you fumbling around in the dark.
As for the issue you're experiencing with adding a callback, it looks like the
mmaddcallback command is catching the --single-instance flag as an argument for
it, not as a parameter for the mmstartpolicy command. After looking at the
documentation you've referenced, I suspect that there's a typo/omission in the
command and it should have a trailing double quote (") on the end of the parms
argument list, i.e.:
mmaddcallback MIGRATION --command /usr/lpp/mmfs/bin/mmstartpolicy --event
lowDiskSpace --parms "%eventName %fsName --single-instance"
I'm not sure how we go about asking IBM to correct their documentation, but
expect someone in the user group will have some idea.
Regards,
Pete Chase
[email protected]
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Today's Topics:
1. mmaddcallback documentation issue (Buterbaugh, Kevin L)
2. Re: mmaddcallback documentation issue (Eric Sperley)
----------------------------------------------------------------------
Message: 1
Date: Mon, 6 Aug 2018 21:42:54 +0000
From: "Buterbaugh, Kevin L" <[email protected]>
To: gpfsug main discussion list <[email protected]>
Subject: [gpfsug-discuss] mmaddcallback documentation issue
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"
Hi All,
So I?m _still_ reading about and testing various policies for file placement
and migration on our test cluster (which is now running GPFS 5).
On page 392 of the GPFS 5.0.0 Administration Guide it says:
To add a callback, run this command. The following command is on one line:
mmaddcallback MIGRATION --command /usr/lpp/mmfs/bin/mmstartpolicy --event
lowDiskSpace --parms "%eventName %fsName --single-instance
The --single-instance flag is required to avoid running multiple migrations on
the file system at the same time.
However, trying to issue that command gives:
mmaddcallback: Incorrect option: --single-instance
And the man page for mmaddcallback doesn?t mention it or anything similar to
it. Now my test cluster is running GPFS 5.0.1.1, so is this something that was
added in GPFS 5.0.0 and then subsequently removed?
I can?t find the GPFS 5.0.1 Administration Guide with a Google search.
Thanks?
Kevin
?
Kevin Buterbaugh - Senior System Administrator Vanderbilt University - Advanced
Computing Center for Research and Education
[email protected]<mailto:[email protected]> -
(615)875-9633
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Message: 2
Date: Mon, 6 Aug 2018 15:46:39 -0700
From: "Eric Sperley" <[email protected]>
To: gpfsug main discussion list <[email protected]>
Subject: Re: [gpfsug-discuss] mmaddcallback documentation issue
Message-ID:
<of2e0e1104.a39aa4c3-on002582e1.007d02c1-882582e1.007d1...@notes.na.collabserv.com>
Content-Type: text/plain; charset="utf-8"
See if this helps
https://www.ibm.com/support/knowledgecenter/en/STXKQY_5.0.1/com.ibm.spectrum.scale.v5r01.doc/bl1adm_mmaddcallback.htm
Best Regards, Eric
Eric Sperley, PhD
SDI Architect
To improve is to change; to be perfect is IBM Systems
to change often - - Winston Churchill
[email protected]
+15033088721
From: "Buterbaugh, Kevin L" <[email protected]>
To: gpfsug main discussion list <[email protected]>
Date: 08/06/2018 02:44 PM
Subject: [gpfsug-discuss] mmaddcallback documentation issue
Sent by: [email protected]
Hi All,
So I?m _still_ reading about and testing various policies for file placement
and migration on our test cluster (which is now running GPFS 5).
On page 392 of the GPFS 5.0.0 Administration Guide it says:
To add a callback, run this command. The following command is on one line:
mmaddcallback MIGRATION --command /usr/lpp/mmfs/bin/mmstartpolicy --event
lowDiskSpace --parms "%eventName %fsName --single-instance
The --single-instance flag is required to avoid running multiple migrations on
the file system at the same time.
However, trying to issue that command gives:
mmaddcallback: Incorrect option: --single-instance
And the man page for mmaddcallback doesn?t mention it or anything similar to
it. Now my test cluster is running GPFS 5.0.1.1, so is this something that was
added in GPFS 5.0.0 and then subsequently removed?
I can?t find the GPFS 5.0.1 Administration Guide with a Google search.
Thanks?
Kevin
?
Kevin Buterbaugh - Senior System Administrator Vanderbilt University - Advanced
Computing Center for Research and Education [email protected] -
(615)875-9633
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