Very low disk performance Highpoint 1820a

[Eric Anderson]

Arne Wörner wrote:
> --- Steven Hartland <killing at multiplay.co.uk> wrote:
> 
>>Only on write this is a read test.
>>
> 
> Oh. Ok! :-)
> 
> But there is a striping-like effect (especially when u use n=8
> discs in one RAID-5 and when u do sequential read), so that the
> performance could be easily (n-1)*40MB/sec (which would be in your
> case 350MB/sec; my single ATA disc reads 40 or about 40 MB/sec).
> 
> So I would say, that something in the ATA driver is sub-optimal
> and worse than before. But I do not know what... There are so many
> lines...

I don't think it is ATA related - my tests were through a Fiber Channel 
card.  My reads were 1/2 of my writes..

Eric


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