[geeks] Slow Ultra160 performance

[Thomas Gallaway]

Thomas Gallaway wrote:

> Hi
>
> I am just ripping my hair out with this box. I upgraded my cubase 
> machine and got a ultra160 adaptec 2100s raid card with 3 * 36gb 10k 
> rpm drives. I connected them internally with 68pin to sca adapters and 
> put a termination on them. When I go into the bios it shows me that 
> all 3 drives run at 160mb/s speeds. I created the raid5 and installed 
> the OS. Now somehow the performance is slow.
>
> I did some tests and get max trueput of 6mb/s. That doesnt sound 
> right. It seems like it's slower than the serial ata drives I had on 
> there be4. The reason why I went u160 is cause the serial ata 
> controller had issues with my m-audio delta44 sound card.
>
> Anybody ever had something like this happening be4? Could it be 
> termination issues?
>
Turned out to be a bad harddisk. The drive was working but made the bus 
dirty and then failed a few times. The drive fell back to 80mb/s or 
would disapear from the bus totally. Just filled out an RMA with seagate.

-- Thomas