[gpfsug-discuss] BIG LAG since 3.5 on quotaaccountingreconciliation

[Jaime Pinto]

I like to give the community a chance to reflect on the issue, check  
their own installations and possibly give us all some comments. If in  
a few more days we still don't get any hints I'll have to open a  
couple of support tickets (IBM, DDN, Seagate, ...).

Cheers
Jaime


Quoting "Uwe Falke" <UWEFALKE at de.ibm.com>:

> Hi, Jaimie,
>
> we got the same problem, also with a GSS although I suppose it's rather to
> do with the code above GNR, but who knows.
> I have a PMR open for quite some time (and had others as well).
> Seems like things improved by upgrading the FS version, but atre not gone.
>
>
> However, these issues are to be solved via PMRs.
>
> Mit freundlichen Grüßen / Kind regards
>
>
> Dr. Uwe Falke
>
> IT Specialist
> High Performance Computing Services / Integrated Technology Services /
> Data Center Services
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>
>
>
> From:   "Jaime Pinto" <pinto at scinet.utoronto.ca>
> To:     "gpfsug main discussion list" <gpfsug-discuss at spectrumscale.org>,
> "Jaime Pinto" <pinto at scinet.utoronto.ca>
> Date:   05/11/2017 08:17 PM
> Subject:        Re: [gpfsug-discuss] BIG LAG since 3.5 on quota accounting
> reconciliation
> Sent by:        gpfsug-discuss-bounces at spectrumscale.org
>
>
>
> Just bumping up.
> When I first posted this subject at the end of March there was a UG
> meeting that drove people's attention.
>
> I hope to get some comments now.
>
> Thanks
> Jaime
>
> Quoting "Jaime Pinto" <pinto at scinet.utoronto.ca>:
>
>> In the old days of DDN 9900 and gpfs 3.4 I only had to run mmcheckquota
>> once a month, usually after the massive monthly purge.
>>
>> I noticed that starting with the GSS and ESS appliances under 3.5 that
>> I needed to run mmcheckquota more often, at least once a week, or as
>> often as daily, to clear the slippage errors in the accounting
>> information, otherwise users complained that they were hitting their
>> quotas, even throughout they deleted a lot of stuff.
>>
>> More recently we adopted a G200 appliance (1.8PB), with v4.1, and now
>> things have gotten worst, and I have to run it twice daily, just in
>> case.
>>
>> So, what I am missing? Is their a parameter since 3.5 and through 4.1
>> that we can set, so that GPFS will reconcile the quota accounting
>> internally more often and on its own?
>>
>> Thanks
>> Jaime
>>
>
>
>
>
>
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> Jaime Pinto
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---
Jaime Pinto
SciNet HPC Consortium - Compute/Calcul Canada
www.scinet.utoronto.ca - www.computecanada.ca
University of Toronto
661 University Ave. (MaRS), Suite 1140
Toronto, ON, M5G1M1
P: 416-978-2755
C: 416-505-1477

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