Re: [CentOS] Mirror After?

ML wrote:

If I put a 1TB HD in my server (because they are on sale this week), can I later Mirror to a second 1TB drive without destroying the data on the first?

On Windows and OS X, I know I can't do this...

Thoughts?

Partition the disk into one partition of type 'FD' (raid autodetect) Use mdadm to create a 2 device RAID1 but specify one device as "missing" and mount the md device instead of the disk partition. Then when/if you get a matching drive, create the matching partition and add it to the raid with 'mdadm --add'. Personally, I think this should be the default mechanism when installing but you can't do it at all there.