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,

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

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