[CentOS] Mirroring Hard Drive

Dan Carl danc at bluestarshows.com
Fri Aug 1 22:16:35 UTC 2008

> -----Original Message-----
> From: centos-bounces at centos.org [mailto:centos-bounces at centos.org]On
> Behalf Of Les Mikesell
> Sent: Friday, August 01, 2008 3:16 PM
> To: CentOS mailing list
> Subject: Re: [CentOS] Mirroring Hard Drive
> Joseph L. Casale wrote:
> >> brute force approach...
> >>
> >>    dd if=/dev/sda of=/dev/sdb bs=16384
> >
> > That's probably the most safest, but you'll have to remove it before
> > you boot if you use lvm right?
> >
> > Doesn't clonzilla support lvm? Could you boot off a live cd to only copy
> > actual data which should be quick in your case?
> Clonezilla will handle LVMs, but I'm not sure if it is happy with cloned
> identifiers done disk<->disk in the same machine.  It may drop back to
> dd for that anyway.  If you have space on the network to store the
> image, let clonezilla copy to the network from the source box and clone
> it to disk on a different one.   Unless the contents are extremely
> critical you probably don't need to clone back to a real disk anyway.
> That part would only take a few extra minutes when you need it.

I did this the other day with clonezilla and it worked great!
It only took 15-20 minutes.
I put the new clone in a different box and now use rsynce to keep things
If you wanted to keep the drives in the same box I'm sure theres a way, with
linux there always is :)



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