[lustre-discuss] How to find the performance degrade reason

[Cameron Harr]

Use 'zpool iostat -v ...'. You can review the man page for lots of 
options, including latency statistics.

Cameron


On 09/10/2018 11:21 AM, Zeeshan Ali Shah wrote:
> Dear All,
>
> Suddenly our lustre installation become dead slow, copying data from 
> local source to lustre result around 20MB/sec before it was above 600 MB.
>
> i checked zfs status -xv and (all pool healths are ok)
>
> 1) How to check which OSTs are involved during data write operation ?
> 2) How to check Meta data (read and write) stats ?
> 3) any other advice to drill down the reason ..
>
>
> /Zeeshan
>
>
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