#!/bin/bash
#
# Program: Veritas configuration archiver <vxvmconfigbackup>
#
# Author: Matty < matty91 at gmail dot com >
#
# Current Version: 1.0
#
# Revision History:
#   Version 1.0
#     - Original release
#
# Last Updated: 11-14-2006
#
# License: 
#  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.
#
# Purpose: vxvmconfigbackup can be used to backup disk group and
#          volume configuratio data. This data can be used during
#          a recovery scenario to restore a volume or disk group
#          configuration.

# Create a default environment
PATH=/bin:/usr/bin:/sbin:/usr/sbin
export PATH

# Global variables
DATE=`date "+%m-%d-%Y-%M%S"`
DIRECTORY="/etc/dgbackups"

### Function to call to print usage information
usage() {
	echo "Usage: $0 [ -d directory ]"
	echo "   -d directory     : The directory to store configuration backups"
        echo "   -g disk group    : Disk group to backup"
        echo "   -v volume        : Volume to backup"
}

### Parse the options passed on the command line
while getopts a:d:g:v: option
do
        case "${option}"
        in
                d) DIRECTORY=${OPTARG};;
                g) DG=${OPTARG};;
                v) VOLUME=${OPTARG};;
                \?) usage
                    exit 1;;
        esac
done

### Check to make sure a directory is available to store the backups
if [ ! -d ${DIRECTORY} ]
then
     echo "${DIRECTORY} does not exist"
     exit 1
fi

### Check to make sure vxdg and vxprint are available
if [ ! -f "/usr/sbin/vxdg" ] && [ ! -f "/usr/sbin/vxprint" ]
then
     echo "Cannot find vxdg or vxprint in /usr/sbin"
     exit 1
fi

#### Backup a volume
if [ "${VOLUME}" != "" ] && [ "${DG}" != "" ]
then
     echo "Backing up volume ${VOLUME} to ${DIRECTORY}/${DG}.${VOLUME}.${DATE}"
     /usr/sbin/vxprint -hmQq ${VOLUME} > ${DIRECTORY}/${DG}.${VOLUME}.${DATE}

### Backup a specific disk group
elif [ "${VOLUME}" = "" ] && [ "${DG}" != "" ]
then
     echo "Backing up disk group ${DG} to ${DIRECTORY}/${DG}.${DATE}"
     /usr/sbin/vxprint -g ${DG} -hmQq > ${DIRECTORY}/${DG}.${DATE}

#### Backup all disk group configurations by default
else
     for DG in `/usr/sbin/vxdg -q list | awk '{print $1}'`
     do
          echo "Backing up the disk group configuration for ${DG} to ${DIRECTORY}/${DG}.${DATE}"
          /usr/sbin/vxprint -g ${DG} -hmQq > ${DIRECTORY}/${DG}.${DATE}
     done
fi

exit 0