glabel clarification

[Adam Vande More]

On Mon, Oct 19, 2009 at 9:46 AM, PJ <af.gourmet at videotron.ca> wrote:

> Adam Vande More wrote:
> > On Mon, Oct 19, 2009 at 9:35 AM, PJ <af.gourmet at videotron.ca
> > <mailto:af.gourmet at videotron.ca>> wrote:
> >
> >     Adam Vande More wrote:
> >     > On Mon, Oct 19, 2009 at 9:26 AM, PJ <af.gourmet at videotron.ca
> >     <mailto:af.gourmet at videotron.ca>
> >     > <mailto:af.gourmet at videotron.ca
> >     <mailto:af.gourmet at videotron.ca>>> wrote:
> >     >
> >     >     Yes, this is true and that is why I thought that glabel would
> >     >     work; I am
> >     >     trying to set up my computers with identical clones that I
> >     can update
> >     >     with changes on the master machine from time to time and
> >     thus prevent
> >     >     data loss in case of problems. So I use ad12 as the main
> >     system; if it
> >     >     were to crash I would then boot from ad6 which is identical.
> >     But the
> >     >     /etc/fstab is identical in both machines. So if I boot from
> >     ad6, I
> >     >     will
> >     >     get booted from ad12 ... so that doesn't work. It looks like we
> >     >     need an
> >     >     unique identifier for each disk.
> >     >
> >     >
> >     > Why not use gmirror?
> >     >
> >     >
> >     > --
> >     > Adam Vande More
> >     because I am not using RAID. :-(
> >
> >
> > gmirror + ggated = disk or slice replicated to remote system
> >
> > --
> > Adam Vande More
> You ae trying to give me a migraine. :-)
> But what happens if the disks are not identical in size? Dump/restore
> allows for that; dump/restore will copy only the used date and not the
> entire partition or slice.
>
>
It depends on what your end goals is which is still not entirely clear.  Do
you want a disk that can be unplugged from a machine and used to boot
immediately in your orginal system in case of hd failure.  If yes then
gmirror + ggated is the way to go.  If you simply want data to be backed up
on regular basis, something like rsync is easier.


-- 
Adam Vande More