Pieter Bowman <[EMAIL PROTECTED]> wrote:
> This is not a bug per se, but more of an enhancement.
>
> We've been using amanda for many years, using both native dump and GNU
> tar as backup mechanisms. Recently we started migrating to ZFS on our
> Solaris systems. One thought I had was to point tar at a ZFS snapshot
> for the purposes of doing backups, giving a stable/read-only
> filesystem for tar to work on. However, I found a major problem with
> this, in that the device number changes for each snapshot (and is
> different from the parent filesystem). Since the GNU tar
> listed-incremental option relies on having a consistent device number,
> we're stuck. I looked through the code and it appears that this
> problem has already been handled when the filesystem is NFS, so as an
> experiment I made the following changes to tar and then made a few
> tests. The tests seemed to do what I expect them to, but I thought I
> would ask if anybody saw a problem with this.
Similar problems are known for some time.....(even with UFS snapshots).
In case you like to know: star supports the fs-name=/mnt/point for this
reason allowing you to match an existing exntry in /etc/tardumps in case
you use snapshots.
Jörg
--
EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
[EMAIL PROTECTED] (uni)
[EMAIL PROTECTED] (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
