Code:


#!/bin/bash
#
# Retrospect Client retroeventhandler script
# 
# Contact Information 
# 
# EMC Corporation 
# 3003 Oak Road, 3rd Floor 
# Walnut Creek, CA 94597 
# 800.225.4880 or 925.948.9000
# customer_service@dantz.com
# 
# Copyright 2000-2005 EMC Corporation 
#
#
# How to use this script
# 
# Any executable with pathname /etc/retroeventhandler will be run 
# at the beginning and end of each source in a scripted backup. 
# The executable is passed one of the following parameter arrays:
#
#  StartSource, Script name(string), Source path(string),
#  Source name(string), Client name(string), Err file(empty)
#
#  EndSource, Script name(string), Source path(string),
#  Source name(string), Client name(string), KB stored(int),
#  Files stored(int), Duration in seconds(int), Source
#  start(date string), Source end(date string), 
#  Script start(date string), Backup set(string), 
#  Backup type(string), Source parent(string),
#  Errors(int), Fatal errors(int), Result(string)
#
# If a non-zero exit code is encountered for an execution trig-
# gered by the StartSource event, that backup source will 
# be skipped.
#
# Notes
# 1. The Source path is non-intuitive for mount points; it shows 
#    the Retrospect object path rather than the Linux or Unix path. For 
#    example, on client Bongo Fury  with an external drive mounted 
#    to /mnt/ext, the source path is "Backup Clients/Bongo Fury/ext", 
#    while the source name is "/mnt/ext".
#
# 2. Parameters 2 through 17 are passed double-quoted, so you
#    have to include the double quotes in your string for exact
#    pattern matching in tests (e.g. $X = [ "\"ScriptName\"" ])
#
# This sample script appends a timestamp and the arguments it 
# receives to a log file.
LOGFILE=/var/log/retro-events.log
date >>$LOGFILE
for X in "$@"; do
    echo $X >>$LOGFILE
done
# This sample script prevents a script named Invasive from
# backing up the /mnt/ext mountpoint.
#if [ $2 = "\"Invasive\"" ] && [ $4 = "\"/mnt/ext\"" ]; then
#	exit 1
#fi





###################################################################################
# 
#    Script to backup a Zimbra installation (open source version)
#    by installing the Zimbra on a separate LVM Logical Volume,
#    taking a snapshot of that partition after stopping Zimbra,
#    restarting Zimbra services, , then using retrospect to backup the snapshot.
#
#    This script was originally based on a script found on the Zimbra wiki
#    http://wiki.zimbra.com/index.php?title=Open_Source_Edition_Backup_Procedure
#    and totally rewritten since then.
#
#    Copyright (C) 2007 Serge van Ginderachter <svg@ginsys.be>
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License version 2 as 
#    published by the Free Software Foundation.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#    Or download it from http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
#
####################################################################################

#### Modify the following variables according to your installation

# backup_dir - directory to backup to 
zm_backup_path=/home/zbackup

# zm_lv - the Logical Volume that contains /opt/zimbra - /opt mount point expected
zm_lv=LogVol00

# vol_group - the Volume Group that contains $zm_lv
zm_vg=VolGroup01

# zimbra_path - the path beneath the Logical Volume $zm_lv that needs to be synced
zm_path=zimbra

# zm_lv_fs - the file system type (ext3, xfs, ...) in /opt/zimbra
zm_lv_fs=ext3

# lvcreate lvremove - path and command for the lvm logical volume creation and deletion command
LVCREATE=/usr/sbin/lvcreate
LVREMOVE=/usr/sbin/lvremove

#### Modify the following variables according to your taste and needs

# zmsnapshot - the snapshot volume name for $zm_lv
zm_snapshot=zbackup

# zmsnapshot_size - size avalable for growing the snapshot
zm_snapshot_size=3GB

# zm_snapshot_mnt - zimbra snapshot mount point
zm_snapshot_path=/mnt/zbackup


#### Following parameters probably shouldn't need to be changed

log_facility=daemon
log_facility_mail=mail
log_level=notice
log_level_err=error
log_tag="$0"


say() { 
	MESSAGE_PREFIX="zimbra backup:"
	MESSAGE="$1"
	TIMESTAMP=$(date +"%F %T")
	echo -e "$TIMESTAMP $MESSAGE_PREFIX $MESSAGE"
	logger -t $log_tag -p $log_facility.$log_level "$MESSAGE" 
	logger -t $log_tag -p $log_facility_mail.$log_level "$MESSAGE"
	}

error ()  {
	MESSAGE_PREFIX="zimbra backup:"
        MESSAGE="$1"
	TIMESTAMP=$(date +"%F %T")
	echo -e $TIMESTAMP $MESSAGE >&2
	logger -t $log_tag -p $log_facility.$log_level_err "$MESSAGE"
	logger -t $log_tag -p $log_facility_mail.$log_level_err "$MESSAGE"
	exit
	}


##########################################
# Create and mount snapshot prior to retrospect backup
##########################################

if [ $1 = "StartSource" ] && [ $4 = "\"/mnt/zbackup/\"" ]; then

	# load kernel module to enable LVM snapshots
	/sbin/modprobe dm-snapshot || error "Error loading dm-snapshot module"
	
	# Output date
	say "$2 backup started"
	
	# Stop the Zimbra services
	say "stopping the Zimbra services, this may take some time"
	/etc/init.d/zimbra stop || error "error stopping Zimbra" 
	kill -9 $(ps -u zimbra -o "pid=") #|| error "Error stopping Zimbra" #added as a workaround to zimbra bug 18653
	
	# Create a logical volume called ZimbraBackup
	say "creating a LV called $zm_snapshot"
	$LVCREATE -L $zm_snapshot_size -s -n $zm_snapshot /dev/$zm_vg/$zm_lv  || error "error creating snapshot, exiting" 
	
	# Start the Zimbra services
	say "starting the Zimbra services in the background....."
	(/etc/init.d/zimbra start && say "services background startup completed") || error "services background startup FAILED" &
	
	# Mount the logical volume snapshot to the mountpoint
	say "mounting the snapshot $zm_snapshot"
	mount -t $zm_lv_fs -o ro /dev/$zm_vg/$zm_snapshot $zm_snapshot_path
	
	# Create the current backup
	say "snapshot ready for retrospect backup"
	
fi



##########################################
# Unmount and remove snapshot after retrospect backup
##########################################

if [ $1 = "EndSource" ] && [ $4 = "\"/mnt/zbackup/\"" ]; then

	# Unmount $zm_snapshot from $zm_snapshot_mnt
	say "unmounting the snapshot"
	umount $zm_snapshot_path || error "error unmounting snapshot"
	
	# Remove the snapshot volume
	# https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.15/+bug/71567
	say "pausing 1s and syncing before removing the snapshot from LVM"
	sleep 1 ; sync                 
	say "removing the snapshot"
	$LVREMOVE --force /dev/$zm_vg/$zm_snapshot  || say "error removing the snapshot"
	
	# Done!
	say "$2 backup ended: ${17} ($6 KB - $7 Files - $8 Folders)"

fi