Re: Migrating to a RAID 1 setup (hardware RAID)

Doug.Baggett@xxxxxxxxx wrote:
I have a Slackware 10.2 system (but this question really apples to any
distribution).

I picked up a used 3ware 7500-4LP RAID card and would like to use it
with my current LINUX system which is currently configured on a 30GB
drive.

What is the proper way to migrate the system?

The easiest is to buy two identical disks for your RAID-1 array, create the array using 3ware's configuration methods, and then copy your existing stuff over to the array using 'cp -a' or 'tar' or 'rsync' or whatever method you prefer. Then edit /etc/lilo.conf (or grub's configuration file, if that's what you use) to point to the array and re-run LILO. Shutdown, remove the old hard drive, and then boot from the new array.

If you must use your existing disk as part of the new array, you'll need to find a reasonably close match (exact match is best) for the other half of the RAID-1 mirror. Then create a degraded array with only the new disk and proceed as above. Instead of removing the old disk when you're done, attach it to the RAID controller and add it to the RAID-1 array.

You'll have to copy the data over to the array at some point.
.

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