Backups [was Re: Is tape dead?]

[Warner Losh]

On Tue, Sep 15, 2015 at 2:07 PM, Thomas Kula <kula at tproa.net> wrote:

> On Tue, Sep 15, 2015 at 03:32:27PM -0400, ethan at 757.org wrote:
> >
> > I would cut multiple tapes of anything you care about!
> >
>
> It's not simply enough to cut multiple tapes (backups) of anything you
> care about --- you must periodically *read* and *verify* those tapes
> (backups), so that you can re-copy from a known good other copy if it is
> damaged.
>

Same goes for disks that you park backups of other systems on. I've
had several develop wonky spots that have put some of my older
backups in danger. thankfully nothing critical, but I now have
multiple disks with backups in different physical locations that
I test on a regular basis...

Warner