some simple nfs-benchmarks on 5.4 RC2

[Eric Anderson]

Claus Guttesen wrote:
>>When you say 'ide->fiber' that could mean a lot of things.  Is this a single
>>drive, or a RAID subsystem?
> 
> 
> Yes, I do read it different now ;-)
> 
> It's a raid 5 with 12 400 GB drives split into two volumes (where I
> performed the test on one of them).

What does gstat look like on the server when you are doing this?

Also - does a dd locally on the server give the same results?  You should get 
about double that I would estimate locally direct to disk.  What about a dd over 
NFS?

What is the server spending its time doing? (top?)

If you are looking for the best performance, you might try a RAID 0+1 (or 10 
possibly) instead of RAID 5.

Eric




-- 
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Eric Anderson        Sr. Systems Administrator        Centaur Technology
A lost ounce of gold may be found, a lost moment of time never.
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