[lustre-discuss] Setting infinite grace period with soft quotas

Harr, Cameron harr1 at llnl.gov
Thu May 9 07:55:38 PDT 2019

Thanks Andreas. This is somewhat interesting in that I don't have such a 
man page on the systems and 'man lfs' doesn't have such a statement. 
But, certainly, 2^48 sec. would be sufficient! Our workaround was just 
to use a -t XXXw to specify a large number of weeks (largest granularity 
I could see) for the grace period, but having a '-1' shortcut would be 

On 5/8/19 4:43 PM, Andreas Dilger wrote:
> I do see in the lfs setquota usage message and lfs-setquota.1 man page:
>      "The maximum quota grace time is 2^48 - 1 seconds."
> That's about 9M years, so it should probably be long enough?  It might
> make sense to map "-1" internally to "(1 << 48) - 1" to make this easier.
> On May 8, 2019, at 17:18, Harr, Cameron <harr1 at llnl.gov> wrote:
>> I had tested first and couldn't find a way to do so, so I was curious if
>> there was some undocumented way. I'm proceeding with, "No, there's not a
>> way."
>> On 5/6/19 12:52 PM, Andreas Dilger wrote:
>>> On Apr 11, 2019, at 11:02, Harr, Cameron <harr1 at llnl.gov> wrote:
>>>> We're exploring an idea where we keep soft quotas enabled so that users
>>>> will be notified they're nearing their hard quotas (via in-house
>>>> scripts), but users don't like that the soft quota becomes a hard block
>>>> after the grace period. I can understand their rationale as well that
>>>> they should be able to write up to their hard quota always.
>>>> Is there a way to set the grace period as unlimited (e.g. lfs setquota
>>>> -t -1 ...)?
>>> Judging by the lack of response, I don't think anyone has tried this, but
>>> it also seems like something that could be tested quite easily?
>>> Cheers, Andreas
>>> --
>>> Andreas Dilger
>>> Principal Lustre Architect
>>> Whamcloud
> Cheers, Andreas
> --
> Andreas Dilger
> Principal Lustre Architect
> Whamcloud

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