Re: Two-disk RAID5?

2006-05-05 Thread John Rowe
Sorry, I couldn't find a diplomatic way to say you're completely wrong. We don't necessarily expect a diplomatic way, but a clear and intelligent one would be helpful. In two-disk RAID5 which is it? 1) The 'parity bit' is the same as the datum. 2) The parity bit is the complement of the

Re: Two-disk RAID5?

2006-05-05 Thread Neil Brown
On Friday May 5, [EMAIL PROTECTED] wrote: Sorry, I couldn't find a diplomatic way to say you're completely wrong. We don't necessarily expect a diplomatic way, but a clear and intelligent one would be helpful. In two-disk RAID5 which is it? 1) The 'parity bit' is the same as the

Re: Two-disk RAID5?

2006-05-05 Thread Erik Mouw
On Thu, May 04, 2006 at 09:18:57PM -0400, Bill Davidsen wrote: Erik Mouw wrote: No, the other way around: RAID1 is a special case of RAID5. No it isn't. If you have N drives in RAID1 you have N independent copies of the data and no parity, there's just no corresponding thing in RAID5,