Re: performance limitations of linux raid

[Seth Vidal]

> A 7200RPM IDE drive is faster than a 5400RPM SCSI drive and a 10000RPM
> SCSI drive is faster than a 7200RPM drive.
> 
> If you have two 7200RPM drives, one scsi and one ide, each on there own
> channel, then they should be about the same speed.
> 

Not entirely true - the DMA capabilities of IDE could provide faster
transfer modes than your avg scsi card could generate.

I have a 7200 RPM LVD scsi drive and a 7200RPM UDMA ide drive and the IDE
wins EVERY SINGLE TIME.

-sv