Hardware Striping

Dan Strick strick at covad.net
Fri Apr 23 11:45:45 PDT 2004


>>
>	...
> I have two pairs of identical U160 SCSI disks
>	...
> Until now I'm using an Adaptec 29160 Host Adapter, but of course it is
> not HW-RAID0 capable. What card am I looking for?
>
> The disks have a sustained read rate of 60 to 70 Mbyte/s, so if all of
> them were used at the same time they could saturate an U160 bus. Is this
> a problem?
>	...
>>

We can assume that a high speed SCSI host adapter will have a faster
PCI interface but the vast majority of even modern motherboards have
only a traditional 33 MHz 32 bit PCI which would saturate well below
133 Mbyte/sec.

What variety of PCI bus does your system have?

Dan Strick
strick at covad.net


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