[gpfsug-discuss] Get list of filesets _without_ running mmlsfileset?

[Buterbaugh, Kevin L]

Hi All,

I appreciate the time several of you have taken to respond to my inquiry.  However, unless I’m missing something - and my apologies if I am - none so far appear to allow me to obtain the list of junction paths as a non-root user.  Yes, mmlsquota shows all the filesets.  But from there I need to then be able to find out where that fileset is mounted in the directory tree so that I can see who the owner and group of that directory are.  Only if the user running the script is either the owner or a member of the group do I want to display the fileset quota for that fileset to the user.

Thanks again…

Kevin

On Jan 11, 2019, at 10:24 AM, Jeffrey R. Lang <JRLang at uwyo.edu<mailto:JRLang at uwyo.edu>> wrote:

What we do is the use “mmlsquota -Y <device>” which will list out all the filesets in an easily parseable format.   And the command can be run by the user.


From: gpfsug-discuss-bounces at spectrumscale.org<mailto:gpfsug-discuss-bounces at spectrumscale.org> <gpfsug-discuss-bounces at spectrumscale.org<mailto:gpfsug-discuss-bounces at spectrumscale.org>> On Behalf Of Peter Childs
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Subject: Re: [gpfsug-discuss] Get list of filesets _without_ running mmlsfileset?

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We have a similar issue, I'm wondering if getting mmlsfileset to work as a user is a reasonable "request for enhancement" I suspect it would need better wording.


We too have a rather complex script to report on quota's that I suspect does a similar job. It works by having all the filesets mounted in known locations and names matching mount point names. It then works out which ones are needed by looking at the group ownership, Its very slow and a little cumbersome. Not least because it was written ages ago in a mix of bash, sed, awk and find.








On Tue, 2019-01-08 at 22:12 +0000, Buterbaugh, Kevin L wrote:
Hi All,

Happy New Year to all!  Personally, I’ll gladly and gratefully settle for 2019 not being a dumpster fire like 2018 was (those who attended my talk at the user group meeting at SC18 know what I’m referring to), but I certainly wish all of you the best!

Is there a way to get a list of the filesets in a filesystem without running mmlsfileset?  I was kind of expecting to find them in one of the config files somewhere under /var/mmfs but haven’t found them yet in the searching I’ve done.

The reason I’m asking is that we have a Python script that users can run that needs to get a list of all the filesets in a filesystem.  There are obviously multiple issues with that, so the workaround we’re using for now is to have a cron job which runs mmlsfileset once a day and dumps it out to a text file, which the script then reads.  That’s sub-optimal for any day on which a fileset gets created or deleted, so I’m looking for a better way … one which doesn’t require root privileges and preferably doesn’t involve running a GPFS command at all.

Thanks in advance.

Kevin

P.S.  I am still working on metadata and iSCSI testing and will report back on that when complete.
P.P.S.  We ended up adding our new NSDs comprised of (not really) 12 TB disks to the capacity pool and things are working fine.

—
Kevin Buterbaugh - Senior System Administrator
Vanderbilt University - Advanced Computing Center for Research and Education
Kevin.Buterbaugh at vanderbilt.edu<mailto:Kevin.Buterbaugh at vanderbilt.edu> - (615)875-9633



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--

Peter Childs
ITS Research Storage
Queen Mary, University of London

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