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kkelly

kkelly

kkelly

Soldato
Joined
8 Oct 2003
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Hi Guys :)

My wee home server (Ubuntu 9.04) currently has 1TB space attached via an external drive via usb. Now I want to add another 1TB drive as a mirror again using usb like raid 1, can I do this with an already existing partiton or will I have to look at something like rsync?

Thanks for the help/ideas

Kevin.
 
Unless the first drive was originally configured as part of a Linux software RAID, I guess you'd have to nuke it and start again.

A periodic rsync to a second drive would be a better backup strategy than RAID1 anyway - not to mention that a RAID array using USB drives sounds a perfectly horrible idea in principle...
 
It's possible, but requires you to copy the contents of your existing drive into the drives set up as RAID. Then edit your mountings table and boot loader.

It's things like this where using LVM from the start is useful. You can convert the logical volume into a mirrored logical volume live, without even rebooting, so long as your drive technology is hot swappable.
 
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