Thread (4 messages) 4 messages, 4 authors, 2006-09-04

Re: Linux: Why software RAID?

From: Adam Kropelin <hidden>
Date: 2006-08-24 13:13:03
Also in: lkml

On Thu, Aug 24, 2006 at 02:20:50PM +0100, Alan Cox wrote:
Ar Iau, 2006-08-24 am 09:07 -0400, ysgrifennodd Adam Kropelin:
quoted
Jeff Garzik [off-list ref] wrote:
with sw RAID of course if the builder is careful to use multiple PCI 
cards, etc. Sw RAID over your motherboard's onboard controllers leaves
you vulnerable.
Generally speaking the channels on onboard ATA are independant with any
vaguely modern card. 
Ahh, I did not know that. Does this apply to master/slave connections on
the same PATA cable as well? I know zero about PATA, but I assumed from
the terminology that master and slave needed to cooperate rather closely.
And for newer systems well the motherboard tends to
be festooned with random SATA controllers, all separate!
And how. You can't swing a dead cat without hitting a half-dozen ATA
ports these days. And most of them are those infuriatingly insecure SATA
connectors that pop off when you look at them cross-eyed...

--Adam
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