[PLUG] Linux RAID1 question
Paul Heinlein
heinlein at madboa.com
Mon Nov 2 17:37:23 UTC 2009
On Mon, 2 Nov 2009, Joe Pruett wrote:
>> Is it possible to take an ordinary, non-RAIDed hard drive, and turn
>> it into a mirror without losing any data, using linux software
>> RAID?
>
> i'm assuming you have one disk with data and one spare. the safe
> way is to create a broken mirror with the spare drive and "missing"
> as the other piece. then copy all the data from the current drive
> to the mirror. then reboot off the mirror and add the original drive
> to the mirror so it can resync. this involves lots of fdisk, mdadm,
> tar/rsync/cp, etc. so you really need to know what you're doing.
E.g.,
http://djlab.com/2009/05/convert-single-disk-to-raid-on-live-linux-server/
--
Paul Heinlein <> heinlein at madboa.com <> http://www.madboa.com/
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