Erik Mouw wrote:
On Wed, Apr 26, 2006 at 03:22:38PM -0400, Jon Lewis wrote:
On Wed, 26 Apr 2006, Jansen, Frank wrote:
It is not possible to flip a bit to change a set of disks from RAID 1 to
RAID 5, as the physical layout is different.
As Tuomas pointed out though, a 2 disk RAID5 is kind of a special case
where all you have is data and parity which is actually also just data.
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,
which has one copy of the data, plus parity. There is no special case,
it just doesn't work that way. Set N>2 and report back.
Sorry, I couldn't find a diplomatic way to say you're completely wrong.
--
bill davidsen <davidsen@xxxxxxx>
CTO TMR Associates, Inc
Doing interesting things with small computers since 1979
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
