How To Create RAID with exsisting data...
 

Hello All,

I've never used mdadm before, but I'm would like to set up a RAID 0 for /home in my current server.

Currently, /home resides on /dev/hde5, occupying the entire disk. I have installed another hard drive /dev/hdg5 which I would like to use for the mirror.

I have read the mdadm documentation, and cannot seem to find any senario where it covers the creation of a RAID where one disk already has data on it.

Can anyone point me in the right direction on this?

TIA.

.:HoSTiLe:.

For RAID0, you'll need to copy the data elsewhere while you create the array then move it back when you're finished.

Generally creating a RAID array nukes all the data on the component drives, with the exception of RAID1 where an extant drive or partition can be mirrored.

HTH

D'oh...

Sorry.. asleep at the helm when I wrote that...

RAID 1 is what I meant

I'm hoping that in creating the mirror, that the drive with the data will be mirrored automatically...