RAID 1: adding a new SCSI disk to existing disk.... help

mgy · 04-10-2006, 02:58 AM

Anyone know if it is possible to add a new disk to an existing disk, and create a software RAID 1 to mirror both disk without destroying data residing on the existing disk ?

Or can anyone point me to any article on this ? I tried to find on the net but no luck.

Thanks alot !

Linux distro: RHEL WS 3

Finlay · 04-10-2006, 07:52 PM

not sure if there is an easy way to do this.
i would rsync everything to a spare drive first.
then you can install your new drive and create the RAID.
after you have booted and formatted the RAID drive then rsync the data back to the RAID array.

I'm not sure how you would do this otherwise. you could use a boot disk with Ghost or some type of imaging software, but you will need to make sure the boot disk has drivers to support your RAID array.

mgy · 04-17-2006, 04:54 AM

test test test test test test test test testtest test test

mgy · 04-17-2006, 04:55 AM

test test test test test test test test test test test test

mgy · 04-17-2006, 04:56 AM

Hi all,

I found the answer to my question.

Just to share with everybody.
The answer can be found at this link:
http://www.tldp.org/HOWTO/Software-RAID-HOWTO.html

see section 7.6

Warning: Need a lot a lot of patience...