[OpenAFS] Slow AFS performance
Rob Banz
rob@nofocus.org
Thu, 29 Nov 2007 15:39:26 -0500
>>
> ok, I'm now some better performance out of my FC array. "vos move"
> of a
> 4.4GB volume from one disk in the FC array to another disk in the
> array
> only took 16 minutes (4.6MB/s).
>
> Derrick's suggestion of upgrading to 1.4.5 with namei did the trick.
>
> Unfortunately, I don't think I can upgrade the firmware or tune the
> 3511
> array. It's the 3511 expansion unit without the raid controller.
> It's a
> JBOD.
I think 1.4.5 and above has the no-fsync stuff enabled by default,
which really speeds up operations that do a lot of file creations/
deletions such as volume moves.
(if it doesn't, head over to the OpenAFS RT issue tracker and find the
patch)
-rob