-*-text-*-
$Header: /CVSROOT/public/scylla-charybdis/md5backup/doc/sc-backup.txt,v 1.3 2004/09/28 23:58:47 tino Exp $

WARNING!  This is experimental stuff!
WARNING!  No metadata is gathered for now!
WARNING!  This is a extreme short note how to use sc-backup.sh!
WARNING!  No liability for anything.  If it breaks you broke it.
WARNING!  If you do not do as noted here, you are left alone.
WARNING!  To be precise: You *are* left alone!

Perhaps have a look into doc/linked_file_store.txt as well.

This will probably change in future without note:

# You are root, and you are in bash
# You are in the directory where md5backup was untarred to
# (this probably is the parent directory of this text file)
# Be sure to have more than enough free space in /backup for
# a full backup of your hard drive (plus a mysql dump)!
mkdir -p /backup/md5backup/ln1 /backup/charybdis/{tmp,md5move}
ln -s /backup/md5backup/ln1 /backup/charybdis/md5move/
ln -s `/bin/pwd`/bin/sc-*.sh /backup/charybdis/
ln -s /source_directory_of_scylla-charybdis /backup/charybdis/bin
cat >/backup/charybdis/sc-move.conf <<EOF
MOVETARG="127.0.0.1"	# IP of scylla server
MOVEPORT="999"		# port number of scylla
MOVEPASS="Password"	# password of scylla
EOF
make
( cd /backup/charybdis/bin; make )
screen /backup/charybdis/sc-loop.sh
setpw <YOUR mySQL ROOT PW>
# press return to start the backup loop
# press return when dobackup.sh asks you to setup everything

Make sure that /backup/charybdis/sc-loop.sh is running.
You can use my tool ptybuffer to do so, too ..

Also you can call sc-backup.sh from cron as follows:

15 4 * * * echo "<YOUR mySQL ROOT PW>" | /backup/charybdis/sc-backup.sh

If you want to have more than one backup server (recommended) do it as
follows (replace MASTER by some unique thing):

15 4 * * * echo "mysql root pw" | /backup/charybdis/sc-backup.sh
0  8 * * 0 echo "mysql root pw" | /backup/charybdis/sc-backup.sh MASTER

mkdir -p /backup/md5backup/lnMASTER /backup/charybdis/MASTER
ln -s /backup/md5backup/lnMASTER /backup/charybdis/MASTER/
cat >/backup/charybdis/sc-move.MASTER.conf <<EOF
MOVETARG="127.0.0.1"	# IP of MASTER scylla server
MOVEPORT="999"		# port number of MASTER scylla
MOVEPASS="Password"	# password of MASTER scylla
EOF

From time to time don't forget to make a FULL BACKUP, just delete the
database in /backup/md5backup/dbm/

FULL BACKUP ensures that all files are readable and unexpected changes
of files (those which are not reflected in the metadata, normally this
means you have a broken hard drive) are backed up.

BUG ALERT!  FULL BACKUP SHOULD FILL ALL ACTIVE FILES INTO THE
LINKED_FILE_STORE.  (Well, this has been added with 0.3.2)

-Tino
$Log: sc-backup.txt,v $
Revision 1.3  2004/09/28 23:58:47  tino
slight changes to show all the new things

Revision 1.2  2004/05/21 03:43:56  tino
linked_file_store noted

Revision 1.1  2004/05/09 21:12:52  tino
added