[Beowulf] GPFS question

[Skylar Thompson]

I'm glad to hear you got it working again! Out of curiousity, how many
files and bytes do you have spread across how many NSDs? It's been nearly a
decade since we've had to run mmfsck but the run-time of it is a concern
now that our storage is an order of magnitude bigger than it was then.

Also, if you aren't already, you might subscribe to the GPFS user group
mailing list, which has good GPFS technical discussions and also some
IBM/GPFS developers who post:

http://gpfsug.org/mailman/listinfo/gpfsug-discuss

On Tue, Apr 30, 2019 at 09:38:11PM +0100, Jörg Saßmannshausen wrote:
> Dear all,
> 
> many thanks for all the emails, both on- and offline, which was a great help for 
> me to get some idea how long that might take. 
> 
> All the best from a sunny London!
> 
> Jörg
> 
> Am Dienstag, 30. April 2019, 07:58:20 BST schrieb John Hearns via Beowulf:
> > Hi Jorg. I will mail you offline.
> > IBM support for GPFS is excellent - so if they advise a check like that it
> > is needed.
> > 
> > On Tue, 30 Apr 2019 at 04:53, Chris Samuel <chris at csamuel.org> wrote:
> > > On Monday, 29 April 2019 3:47:10 PM PDT Jörg Saßmannshausen wrote:
> > > > thanks for the feedback. I guess it also depends how much meta-data you
> > > 
> > > have
> > > 
> > > > and whether or not you have zillions of small or larger files.
> > > > At least I got an idea how long it might take.
> > > 
> > > This thread might also be useful, it is a number of years old but it does
> > > have some
> > > advice on placement of the filesystem manager before the scan and also on
> > > their
> > > experience scanning a ~1PB filesystem.
> > > 
> > > 
> > > https://www.ibm.com/developerworks/community/forums/html/topic?id=77777777
> > > -0000-0000-0000-000014834266
> > > 
> > > All the best,
> > > Chris
> > > --
> > > 
> > >   Chris Samuel  :  http://www.csamuel.org/  :  Berkeley, CA, USA
> > > 
> > > _______________________________________________
> > > Beowulf mailing list, Beowulf at beowulf.org sponsored by Penguin Computing
> > > To change your subscription (digest mode or unsubscribe) visit
> > > https://beowulf.org/cgi-bin/mailman/listinfo/beowulf
> 
> _______________________________________________
> Beowulf mailing list, Beowulf at beowulf.org sponsored by Penguin Computing
> To change your subscription (digest mode or unsubscribe) visit https://beowulf.org/cgi-bin/mailman/listinfo/beowulf

-- 
Skylar