Re: How to Clone a RAID1 Box to Another with Drives Twice As Big?

[David Christensen <dpchrist@holgerdanske.com>]

On 11/09/17 10:33, Roberto C. Sánchez wrote:
> On Thu, Nov 09, 2017 at 12:25:17PM -0600, Kent West wrote:
> >     I have a Debian Stable box with two 1TB drives, set up as a mirrored RAID1
> >     setup.
> >
> >     I have a replacement box with two 2TB drives.
> >
> >     How do I best clone the old machine to the new, with minimal (or better,
> >     no) downtime, being able to wind up with double the drive space on the new
> >     box?
>
> If minimizing downtime is your objective, then I would recommending
> doing a fresh install on the replacement system and rsyncing everything
> over.  That lets you have the old system up and running until the very
> last moment.

+1 for a file server.


If it's a workstation, put all the drives in the fastest box, mount both 
RAID's, and then rsync.


David