[lustre-discuss] RV: Lustre quota issues

[Thomas Roth]

Perhaps the same issue that we see from time to time.

What happens if you remove the quota alltogether (-b 0 -B 0) and set them to 20G immedeately afterwards?
That made Lustre reconsider and repent in our case.

Still, I suspect it is connected to the parts of the quota-total attributed to each OST:
Try 'lfs quota -v' to see these for each OST.

The manual talks of the 'qunit size', but is not entirely clear whether that is a tunable, a value
derived from Lustre/OST size, a fixed value, and how to dead with it.


Regards
Thomas



On 08/07/2019 12.42, Alfonso Pardo wrote:
> Hi,
> 
>  
> 
> We have an issue with Lustre quotas and groups. We assign storage quotas to
> users groups. In general it works fine, but sometimes with some groups
> Lustre says that the quota limit has been passed. But it not true, if you
> run “lfs quota -g XXXX /data” we get a storage used below the quota limit:
> 
>  
> 
> Disk quotas for group XXXXXX (gid 694):
> 
> Filesystem    used   quota   limit   grace   files   quota   limit   grace
> 
> /mnt/data  2.148G*    20G     20G 2d1h31m9s   32733  100000  100000       -
> 
>  
> 
>  
> 
> As you can see in this example the group has 2.148Gb used, and the quotas is
> established to 20Gb, but Lustre say that the quota has been passed (*) and a
> grace period has started.
> 
>  
> 
> If I upgrade the quota to 50G, for example, the quota indicator (*) and no
> quota errors is vanished.
> 
>  
> 
>  
> 
> Any idea or suggestion?
> 
>  
> 
>  
> 
> Thanks in advance
> 
>  
> 
> Alfonso Pardo Díaz
> CETA·Ciemat
> Departamento de Tecnología
> Conventual de San Francisco
> 10200 Trujillo (Cáceres)
> Tel: 927 659 317 | Ext: 214
> alfonso.pardo at ciemat.es <mailto:alfonso.pardo at ciemat.es> 
> 
>  <http://www.ceta-ciemat.es/> 
> 
>  
> 
> 
> 
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> 

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Thomas Roth
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