hi andy
assuming you have 4 disks... and not 2 disks...
hda + hdd == md0 hda mirrored to hdd
hdc + hdb == md1 hdc mirrored to hdb
i claim you should mirror first... than strip it to be able to
read the data faster
you should play with the idea that if hda dies...
you need to boot from hda's mirror on the other ide cable
if you first stripped hda to hdb or hdc.... you might not be
able to boot off of "hda" replacement
for fun... pull the ide cable and see what happens to simulate
the disk failure...
problem with mirroring ... is that all deleted files will also
be mirrored(deleted) on the other disk/pair too...
- i prefer manually and periodically mirroring data...
have fun
alvin
http://www.Linux-Consulting.com/Raid
for more disk/cable issues.. see the post from May 18...
On Mon, 9 Jul 2001, Andy Arvai wrote:
>
> I was wondering what people thought of using raid 0+1 (a mirrored array
> of raid0 stripes) vs. raid 1+0 (a raid0 array of mirrored disks). It
> seems that either can sustain at least one drive failure and the
> performance should be similar. Are there strong reasons for using one
> over the other?
>
> Andy
> -
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to [EMAIL PROTECTED]
>
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to [EMAIL PROTECTED]
