[gpfsug-discuss] Independent fileset free inodes

Simon Thompson (Research Computing - IT Services) S.J.Thompson at bham.ac.uk
Mon Aug 10 08:13:43 BST 2015


Hi Marc,

Thanks for this. Just to clarify the output when it mentions allocated inodes, does that mean the number used or the number allocated?

I.e. If I pre-create a bunch of inodes will they appear as allocated? Or is that only when they are used by a file etc?

Thanks

Simon

From: Marc A Kaplan <makaplan at us.ibm.com<mailto:makaplan at us.ibm.com>>
Reply-To: gpfsug main discussion list <gpfsug-discuss at gpfsug.org<mailto:gpfsug-discuss at gpfsug.org>>
Date: Friday, 7 August 2015 21:12
To: gpfsug main discussion list <gpfsug-discuss at gpfsug.org<mailto:gpfsug-discuss at gpfsug.org>>
Subject: Re: [gpfsug-discuss] Independent fileset free inodes

Try

 mmlsfileset filesystem_name  -i


[Marc A Kaplan]



From:        "Simon Thompson (Research Computing - IT Services)" <S.J.Thompson at bham.ac.uk<mailto:S.J.Thompson at bham.ac.uk>>
To:        gpfsug main discussion list <gpfsug-discuss at gpfsug.org<mailto:gpfsug-discuss at gpfsug.org>>
Date:        08/07/2015 12:49 PM
Subject:        Re: [gpfsug-discuss] Independent fileset free inodes
Sent by:        gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org>
________________________________




Hmm. I'll create an RFE next week then. (just in case someone comes back with a magic flag we don't know about!).

Simon
________________________________________
From: gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org> [gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org>] on behalf of Rei Lee [rclee at lbl.gov<mailto:rclee at lbl.gov>]
Sent: 07 August 2015 17:30
To: gpfsug-discuss at gpfsug.org<mailto:gpfsug-discuss at gpfsug.org>
Subject: Re: [gpfsug-discuss] Independent fileset free inodes

We have the same problem when we started using independent fileset. I
think this should be a RFE item that IBM should provide a tool similar
to 'mmdf -F' to show the number of free/used inodes for an independent
fileset.

Rei

On 8/7/15 8:56 AM, Simon Thompson (Research Computing - IT Services) wrote:
> I was just wondering if anyone had a way to return the number of free/used inodes for an independent fileset and all its children.
>
> We recently had a case where we were unable to create new files in a child file-set, and it turns out the independent parent had run out of inodes.
>
> mmsf however only lists the inodes used directly in the parent fileset, I.e. About 8 as that was the number of child filesets.
>
> The suggestion from IBM support is that we use mmdf and then add up the numbers from all the child filesets to workout how many are free/used in the independent fileset.
>
> Does anyone have a script to do this already?
>
> Surely there is a better way?
>
> Thanks
>
> Simon
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> gpfsug-discuss at gpfsug.org
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