[gpfsug-discuss] gpfs userquota : can df represent the users space used

[Walter Sklenka]

Hello Jonathan!

Yes you are right: home is a fileset and filesetdf is set

So do I understand right:  a df always shows a "device free" report ( independent from being a fileset or not)



Yes, I would be very interested in the utility 😊



Thank you very much ! Best wishes





Mit freundlichen Grüßen

Walter Sklenka

Technical Consultant



EDV-Design Informationstechnologie GmbH

Giefinggasse 6/1/2, A-1210 Wien

Tel: +43 1 29 22 165-31

Fax: +43 1 29 22 165-90

E-Mail: sklenka at edv-design.at

Internet: www.edv-design.at



-----Original Message-----
From: gpfsug-discuss <gpfsug-discuss-bounces at gpfsug.org> On Behalf Of Jonathan Buzzard
Sent: Dienstag, 9. April 2024 13:50
To: gpfsug-discuss at gpfsug.org
Subject: Re: [gpfsug-discuss] gpfs userquota : can df represent the users space used



On 09/04/2024 12:25, Walter Sklenka wrote:

> CAUTION: This email originated outside the University. Check before

> clicking links or attachments.

>

> Hi!

>

> A collegue/customer asked me theses days why on the quota enabled

> filesystem a “df .” in the home dir   does not show his used and free

> space , representing the quotas

>

> I have to admit I never checked this before . On an other gpfs cluster

> he says it does

>

> When using mmlsquota as normal user this works

>

> xy at lxx:~$ /usr/lpp/mmfs/bin/mmlsquota --block-size auto

>

> Block Limits                                               |     File

> Limits

>

> Filesystem Fileset    type         blocks      quota      limit

> in_doubt    grace |    files   quota    limit in_doubt    grace

> Remarks

>

> mulfs      home       USR          29.31G     4.785T         5T

> 0     none |   208821       0        0        0     none

>

> mulfs      scratch    USR             16K          0          0

> 0     none |       79       0        0        0     none

>

> My silly question is, should “df” do the same and if not what could be

> the reasons?

>



Sounds like the home directory might be a fileset and filesetdf might be set for the file system where df is reporting the home directory quota numbers for mmdf.



In general mmdf behaves like df so you get a "device free" report not a quota report.



I wrote a small utility that I call mmdiskusage that reports a users home directory quota if it exists. It also skips the in_doubt number because that confuses users. We have it called automatically when they log on, start a terminal etc.



Output looks like this



     Block Limits                      |    File Limits

Usage     Quota     Limit     Grace   |  Files      Quota      Limit

Grace

55.7G     350G      1T        n/a     |  37109      1000000    2000000

n/a



I could post the source if people are interested. It's about 100 lines of clean C plus comments Apache license. It was a development of the mmdfree command I wrote back in the day for Samba.





JAB.



--

Jonathan A. Buzzard                         Tel: +44141-5483420

HPC System Administrator, ARCHIE-WeSt.

University of Strathclyde, John Anderson Building, Glasgow. G4 0NG





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