I'm brand new, so let me first say thank you, this looks like a pretty
full-blown backup implementation.

Bunch of new user questions: can I put the holding disk on one
of the file systems I'm backing up (backing up the tape server host
itself)?

Does amanda backup the entire filesystem, both the used space and
the empty space?  Since it uses the fs /dev/ entries, do I need to
be concerned about symlinks that cross slices?

I'm using a Seagate Scorpion DDS-2 (4G/8G) drive.  Should I skip amanda's
compression and use the hardware compression?  I've been using tar, and
I made uncompressed tar files of about 1.8G and 1.2G and used hardware
compression to get them to both fit on a 2G/4G tape.   But I've added
more content, and now the 1.8G file is over 2G, and tar seems to use a
signed 32-bit int, so I'm hosed beyond 2G (.tar cannot contain any single
file over 2G).  So since the tape is a .tar file itself, it was crapping
out on the 2G file.

Here's what I used to do:

/usr/bin/tar -cf /var/spool/backup/ns.tar --exclude /mnt --exclude /dev --exclude 
/var/tmp --exclude /var/spool/backup --exclude /var/squid --exclude /usr/tmp --exclude 
/usr/home/smbd/MP3 /

Then I'd tar _that_ file (ns.tar) and one other similar tar file from 
another host onto my tape drive.  _That's_ what wouldn't work once
ns.tar grew beyond 2G.

Sorry to ramble.  I think I can dig enough to figure out amanda's 
exclude mechanism.  Do I need to explicitly exclude the directory where
amanda is putting the dump images, or will amanda know to do that?
How does amanda handle symlinks that cross filesystems?  When an excluded 
directory is a symlink, should I exclude both the physical dir _and_ the 
logical link, or just the physical dir?

Here's what I want to back up.  Subtract about 2G from /usr/home
for stuff that doesn't have to be backed up, and another 3-3.5G on
/usr that doesn't need to be backed up.  /var/spool/backup is a symlink
to /usr/tmp/backup, and I'm putting my holding files under 
/var/spool/backup.  Hence the question about excluding symlinks, will 
amanda know to exclude /usr/tmp/backup/dumps because that's where 
/var/spool/backup/dumps resides?


Filesystem      Size   Used  Avail Capacity  Mounted on
/dev/idad0s1a   124M    83M    31M    73%    /
/dev/idad0s1h   9.7G   5.0G   3.9G    56%    /usr
/dev/idad0s1d   4.9G   3.1G   1.4G    68%    /usr/home
/dev/idad0s1e   124M    64M    50M    56%    /var
/dev/idad0s1g   992M    37K   913M     0%    /var/spool
/dev/idad0s1f   124M    73M    41M    64%    /var/tmp


Holler if I can confuse this a little more.  The evening is still
young here on the left coast.

Thank you!


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