You might find this little writeup useful. It's a little dated but I can
vouch that it works.
http://www.dell.com/downloads/global/power/1q04-hul.pdf
Samuel Halicke wrote:
On Jun 19, 2008, at 11:50 AM, Timmy wrote:
[snip]
So, I face a problem: How to REBUILD / CLONE sda to sdb with Linux
command mdadm?? :((
Timmy
The "simplest" route is to just use dd(1):
dd if=/dev/sda of=/dev/sdb bs=1M conv=notrunc,noerror,sync 2>&1 | tee
/tmp/dd-errors.log
This will create an exact, bootable clone, including partition tables
and UUID. It may take a long time, and there is no progress indicator
with dd, but it works. If there are errors, you can check the file tee
writes. See the dd manpage for more details.
Other alternatives include partimage, available here:
http://www.partimage.org/Main_Page -- and also, the mdadm command itself
-- the short version: set up RAID 1, partitions to Linux raid
autodetect, put the first drive (your everyday drive) as the first in
the set and the second as the mirror. The md driver should automatically
rebuild the mirror for you. Just make sure you partition the disks the
same way. There's plenty of information on the web about working with
md/mdadm.
--
Samuel Halicke [EMAIL PROTECTED]
FNAL/CD/SF/FEF FCC/252/U
(T): 630.840.4308 (P): 630.266.0042
