[mdlug] file copy

[Adam Tauno Williams]

On Mon, 2013-12-30 at 10:35 -0500, Adam Tauno Williams wrote:
> On Mon, 2013-12-30 at 09:40 -0500, Carl T. Miller wrote:
> > Adam Tauno Williams wrote:
> > > On Sat, 2013-12-28 at 10:31 -0600, Bob wrote:
> > >> I need to copy the contents of a hard drive to another, larger, hard
> > >> drive.
> > >> What are my options for most efficient/reliable methods?
> > > Attach the drive.
> > > Create a new physical volume ppvcreate] and add it to your volume group
> > > [vgextend]
> > > Move the logical volumes from the old physical volume to the new
> > > physical volume [pvmove]
> > > Remove the old physical volume from the volume group [pvremove]
> > > Grow the logical volumes [lvextend]
> > Adam, I love this answer because it means no downtime (assuming
> > that the new drive can be hot installed). 
> And it preserves all meta-data, permissions, etc... which an rsync will
> *not* unless you are very careful.
> > However it does
> > require an existing volume group which may not exist in Bob's
> > environment.
> Hey, this is **2013**.  If you are not using volume management -
> reinstall now using volume management.  

One of the most awesome things - replace a computer... move the volumes
from the old drive to the drive in the new computer...  easy.

pvmove /home to a USB attached drive.  move the USB cable, pvadd and
them move the volumes from the USB drive to the internal storage.  No
farting around; fast and *complete*.

Or do this to virtual disks between VMs! 

-- 
Adam Tauno Williams <mailto:awilliam at whitemice.org> GPG D95ED383
Systems Administrator, Python Developer, LPI / NCLA