[lug] software RAID

[Jeff Schroeder]

Hugh wrote:

> I just
> read something that said putting them on the same ide interface is
> worse than bad.  If so, is it only performance related or do terrible
> things happen (guess who put both drives on ide1).

There are really two reasons not to do that:

1) Performance, as you said.  Since you're writing to both drives in a 
RAID-1 configuration, you'll be crowding the bandwidth on the IDE 
channel.  Using two channels will allow you to have greater speed.

2) Fault-tolerance.  If something goes awry on the IDE channel (power 
spike?) you could potentially fry both drives-- thus destroying the 
very reason you mirrored them in the first place.  Having them on 
separate channels lowers the odds that Something Bad will happen to 
both drives simultaneously.

HTH,
Jeff
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