[lustre-discuss] Lustre/ZFS space accounting

[Thomas Roth]

Hi,

I don't know about the error messages. But are you sure that the imbalance of the OST filling isn't due to some extremely large files written 
overnight or so (- with default striping, one file -> one OST). Our users are able to do that, without realizing.

Regards,
Thomas

On 08.06.2017 10:11, Hans Henrik Happe wrote:
> Hi,
> 
> We are on Lustre 2.8 with ZFS.
> 
> Our users have seen some unexplainable errors:
> 
> 062: forrtl: Input/output error
> 
> Or
> 
> 062: forrtl: severe (28): CLOSE error, unit 10, file “Unknown"
> 
> 
>  From attached 'lfs df -h' you can see that the OSTs are unbalanced and
> OST0001 but far from being full. We are using default allocation setting
> so we should be in weighted mode.
> 
> I've tried to find an LU matching this but no luck. Also, log on
> affected nodes and on servers are empty.
> 
> Any suggestions about how to debug this?
> 
> Cheers,
> Hans Henrik
> 
> 
> 
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> 

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