# ACTION: Backup Scalix
#
# WARNING:
# In order to guarantee Scalix database integrity, Scalix backups
# must be made from an offline copy of the data. This is because a
# change to the database is generally made by modifying multiple files
# simultaneously. If, during a backup, one of these files is modified
# after it is backed up, but the others are modified before they are
# backed up, than the backup will be corrupt. The options for backing
# up are therefore:
# 1. Shut down Scalix, back up, Restart
# Advant: Backup not corrupt. Simple. Always works
# DisAdv: System will be unavailable during backup.
# 2. Use advanced filesystem such as ReiserFS, XFS, or Veritas
# to make a "snapshot" filesystem. A snapshot filesystem holds
# the changes made since the backup started, and allows the
# backup program to access a "snapshot" of the system at the
# time the backup started.
# Advant: Backup not corrupt. No downtime.
# Disadv: Requires advanced FS. Requires approximately extra
# 10% diskspace to hold snapshot information.
# 3. Backup Scalix online from online data set. The restore
# procedure will need to include commands to uncorrupt the
# database. Those commands take time to run. This generally
# works, but it is not guaranteed to work and is "unsupported".
# The command to uncorrupt a database is omscan(8).
# Advant: No downtime. Simple.
# Disadv: Lengthy, unreliable restore. Unsupported.
#
# This backup script does option #1, shut down to backup, so that
# it will work even if you do not have an advanced filesystem. If
# you do have an advanced filesystem, comment out the default backup
# script and modify the steps below to build a backup script based
# on a snapshot filesystem.
#
# This sample backup script does a full backup of Scalix data in
# /var/opt/Scalix, and it uses tar. Scalix does not care if you
# do full or partials, if you backup /, or which backup program you use.
# However, please take note of the WARNING above.
#
# Standard backup script:
#
/opt/Scalix/bin/omshut 2>&1 >> $MAINTLOG
tar -cf $BACKUP_DEVICE /var/opt/Scalix 2>&1 >> $MAINTLOG
/opt/Scalix/bin/omrc 2>&1 >> $MAINTLOG