Hey folks,
I'm curious about the way amanda backs up. If I'm reading the docs,
list and other resources correctly, AMANDA requires at least 1 disklist
entry per partition being backed up. It requires that you have a tape
per partition (not clear on this point as it would seem to obliviate the
need for a non-rewinding device).
Another part of my embattled mind is saying "no, don't be stupid! It
requires 1 entry per partition (or directory) in the disklist file but
will append the backups as needed to the tape device until it can't put
a particilar dump on it. It will then go to the next tape and start the
failed dump from the beginning."
Which side is right (the wheat or frosted ;-) )? I don't know why I'm
having so much trouble with this but I suspect it's information overload.
Also, I currently am using a 7 tape changer (which I think I have mtx
talking to nicely but with some small eccentricities). I currently
have it setup as follows:
dumpcycle 1 week
runspercycle 6
tapecycle 7 tapes
runtapes 1 #I'm thinking of upping this to 2 or 3
tpchanger "chg-scsi" # not sure about this yet
tapedev "/dev/nst0"
rawtapedev "/dev/null"
changerdev "/dev/sg0"
tapetype EXB-EZ17
where EXB-EZ17 is defined by:
define tapetype EXB-EZ17 {
comment "just produced by tapetype program"
length 18600 mbytes
filemark 623 kbytes
speed 2137 kps
}
The current plan is to set up the backups to run 1 full per week with
incrementals (yes, I know amanda does her own thing). There are
currently three 7-tape containers available which I plan to use to allow
off-site store for 1 container in rotation.
Any input would be greatly appreciated. This is running Amanda 2.4.3b3
on a Slackware 8.1 OS using tar (not dump). I configured the build to
use /home/amanda/bin/tar (which is currently just a copy of tar but
could easily become a wrapper). I followed Gene's advice and made
myself a build script (since I found myself building and rebuilding as I
came across new material). It's as follows:
#!/bin/sh
# Since I'm always forgetting to build it as the amanda user
if [ `whoami` != 'amanda' ]; then
echo
echo "WARNING!!!!"
echo "AMANDA needs to be configured and built by the amanda user,"
echo "but must be installed by root."
echo
exit 1
fi
make clean
rm -f config.status config.cache
./configure --prefix=/home/amanda \
--libdir=/usr/local/lib/amanda \
--mandir=/usr/local/man \
--with-user=amanda \
--with-group=disk \
--with-config=daily \
--with-configdir=/home/amanda/config \
--with-gnutar=/home/amanda/bin/tar \
--with-gnutar-listdir=/home/amanda/var \
--with-changer-device=/dev/sg0 \
--with-tape-device=/dev/nst0 \
--with-amandahosts \
--with-gnu-ld \
--with-db=db \
--with-debugging=/tmp/amanda-dbg
# Create directories that aren't created by make
if [ ! -d /home/amanda/var ]; then
mkdir /home/amanda/var
fi
if [ ! -d /home/amanda/config ]; then
mkdir /home/amanda/config
fi
=G=
