some simple nfs-benchmarks on 5.4 RC2

[Eric Anderson]

Claus Guttesen wrote:
>>That's about what I expected.  RAID 5 depends on fast xor, so a slow processor
>>in a hardware RAID5 box will slow you down a lot.
>>
>>You should try taking the two RAID5's (6 disks each) created on your original
>>controller and striping those together (RAID 50) - this should get you some
>>better performance, probably not as close as the amr device, but I would guess
>>somewhere in the 80-90mb/s range.
> 
> 
> This can't be done in hardware, since atabeast only supports raid 0,
> 1, 4 and 5. But I will definitively have this in my mind this when we
> get a new storage-system (a different one).
> 
> Thank you for your guidance.

You could use the atabeast to do two raid 5's, then use vinum to stripe those two.

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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