On Thu, 13 Jan 2011, Felix Reinel wrote:

> Hi,
>> 1)
>> Is there better options I should use to obtain better performance? (e.g.
>> noac will but I would the server to commit to disk and flash should help
>> my speed there)
> Depending on the NFS version you are using, tuning the block sizes might
> help (rsize, wsize).
> The newer versions already have decent blocksizes.
> Configuring the mountpoints with the async option should again speed up
> writes a bit.

IIRC "async" writes return more quickly but there used to be a
possiblity that the data is not as well protected against disasters
(eg if the server lost power between accepting the request and flushing to 
disk). Is this still true ?

-- 
Dr. Andrew C. Aitchison		Computer Officer, DPMMS, Cambridge
[log in to unmask]	http://www.dpmms.cam.ac.uk/~werdna