[CentOS] Mirroring Hard Drive

Johnny Hughes johnny at centos.org
Sat Aug 2 14:00:14 UTC 2008


Matt wrote:
> I have a 500GB Sata drive about 15% used I would like to make an exact
> copy of too another Sata 500GB drive as a spare.  That way if
> something happens to the one in service I can plug in the spare
> quickly and restore one of the weekly backups without reinstalling the
> entire OS and all the little tweaks of setup on this mail/web server.
> 
> How do I do this?  That is make an exact bootable copy of a linux
> drive.  Its running Centos 4.6 if that matters.
> 

stupid question ... why not just put it in the machine and make it a 
raid1 mirror

then, if the first one dies, you just use the second one :D

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