On Wed, 25 Jan 2006, Yedidyah Bar-David wrote:

> On Wed, Jan 25, 2006 at 11:34:29PM +0200, Geoffrey S. Mendelson wrote:
> > On Wed, Jan 25, 2006 at 11:08:14PM +0200, Shachar Shemesh wrote:
> >
> > > I agree that 120GB (as opposed to 20GB, as I thought before) suggest a
> > > tape solution. Still, the large up-front cost of the tape drive, coupled
> > > with the cost of each tape, make a hard disk solution seem appealing.
> >
> > I like a combination of mirroring and other backup. If you make a daily
> > mirror to a spare server in a period of low activity, then you have
> > 24 hours to do the backup.
>
> In addition, if you do use a mirror server, you might as well use
> something like rsnapshot and get a poor man's snapshots for around 1.5
> times the space, depending on your usage patterns. You might also
> consider backing up not the latest version in rsnapshot but all of them.
> This way if you decide to archive e.g. one tape per month, and have
> enough snapshots, you'll also get some of the intermediate versions.

by the way - this may be combined with the use of LVM's snapshots - in
case you don't have a long enough backup window. this, ofcourse, requires
first migrating all the volumes to LVM.

-- 
guy

"For world domination - press 1,
 or dial 0, and please hold, for the creator." -- nob o. dy

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