This script simply syncs from a WD ShareSpace drive to another WD ShareSpace drive. It gets started from a other server which is in my case FreeBSD.
You might need this: How to enable SSH on a Western Digital ShareSpace
Create the following files on FreeBSD:
/backup/sharespace/ssh-wrapper
#!/bin/sh sh /backup/run & |
/backup/sharespace/run
#!/bin/sh # WD ShareSpace sync script v1.1 # By Marius van Witzenburg <info@> # http:// # # Works with busybox 1.1.1 and newer versions. # # Settings source="192.168.8.4" target="192.168.8.9" mailto="info@" mailfrom="noreply@" daemon="yes" force="no" waittime=5 maxlogs=48 beforetime=6 aftertime=20 # # DO NOT CHANGE BELOW! # PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/sbin PID=$$ rarg="-aWvz" curdir=`pwd` cd /backup/ echo ${PID} > /backup/run.pid cleanup() { rm /backup/key cd ${curdir} ssh -ax root@${target} "test -f /backup/rsyncd.pid && kill `cat /backup/rsyncd.pid`" return $? } s_hup() { logger -s -p daemon.notice -t 'backup' "*** SIGHUP! Ignoring... ***" #exit $? } s_int() { logger -s -p daemon.notice -t 'backup' "*** SIGINT! Exiting... ***" cleanup echo -e "From: ${mailfrom}nTo: ${mailto}nSubject: ShareSpace backup.nnSIGINT! Exiting..." | /usr/sbin/msmtp ${mailto} rm /backup/run.pid kill ${JOB} exit $? } s_term() { logger -s -p daemon.notice -t 'backup' "*** SIGTERM! Exiting... ***" cleanup echo -e "From: ${mailfrom}nTo: ${mailto}nSubject: ShareSpace backup.nnSIGTERM! Exiting..." | /usr/sbin/msmtp ${mailto} rm /backup/run.pid kill ${JOB} exit $? } trap s_hup SIGHUP trap s_int SIGINT trap s_term SIGTERM if [ "${daemon}" = "yes" ] then logger -s -p daemon.notice -t 'backup' "Having a rest for the first run..." sleep 30 & JOB=$! wait ${JOB} fi while [ "true" ] do # Time to backup? hour=`date "+%H"` if [ "${hour}" -lt "${beforetime}" ] || [ "$hour" -gt "${aftertime}" ] then # Change the 1 to 1-3 depending on which load you want loadavg=`uptime | sed 's/.*average: ([0-9]).*/1/g'` if [ "${loadavg}" -eq 0 ] || [ "${force}" = "yes" ] then alive=`ssh -ax -q -q -o "BatchMode=yes" -o "ConnectTimeout 5" root@${target} "echo 2>&1" && return 0 || echo 1` if [ "${alive}" -eq 0 ] then user=`echo $(head /dev/urandom)$(date +%Y%m%d%H%M%S%N) | md5sum | uuencode -m -| sed -n 2p | cut -c3-43 | cut -c1-${1:-16}` sleep 1 pass=`echo $(head /dev/urandom)$(date +%Y%m%d%H%M%S%N) | md5sum | uuencode -m -| sed -n 2p | cut -c3-43 | cut -c1-${1:-16}` echo ${pass} > /backup/key test -d /backup/log || mkdir /backup/log test -d /backup/server || mkdir /backup/server test -f /backup/log/run.${maxlogs} && rm -f /backup/log/run.${maxlogs} lcur=${maxlogs} while [ ${lcur} -gt 1 ] do lpre=${lcur} lcur=`expr ${lcur} - 1` test -f /backup/log/run.${lcur}.gz && mv /backup/log/run.${lcur}.gz /backup/log/run.${lpre}.gz done test -f /backup/log/run && mv /backup/log/run /backup/log/run.1 test -f /backup/log/run.1 && gzip /backup/log/run.1 touch /backup/log/run logger -s -p daemon.notice -t 'backup' "Creating rsync server configuration" cat > /backup/server/rsyncd.conf < <EOF pid file = /backup/rsyncd.pid [shares] path = /shares/ comment = Rsync Server uid = root gid = jewab use chroot = no read only = no list = no auth users = ${user} secrets file = /backup/rsync.users EOF cat > /backup/server/rsync.users < <EOF ${user}:${pass} EOF cat > /backup/server/start < <EOF #!/bin/sh rsync --daemon --config=/backup/rsyncd.conf & EOF # Transfer server files rsync -e 'ssh -ax' ${rarg} --timeout=30 --delete /backup/server/ ${target}:/backup/ >> /backup/log/run 2>&1 & JOB=$! wait ${JOB} # Start rsync server ssh -ax root@${target} "sh /backup/start > /dev/null 2>&1; exit" JOB=$! wait ${JOB} # Sync internal shares and exclude usb shares logger -s -p daemon.notice -t 'backup' "Syncing internal shares..." rsync ${rarg} --timeout=60 --password-file=/backup/key --exclude="/usb[1-3]-1share1" --delete /shares/ rsync://${user}@${target}/shares/ >> /backup/log/run 2>&1 & JOB=$! wait ${JOB} tail -2 /backup/log/run | logger -s -p daemon.info -t 'backup' # Sync usb shares if connected for x in `ssh -ax root@${target} ls -l /shares/| grep "^d" | awk '{ print $9 }'` do if [ ! -z "`expr ${x} : '(usb[0-9]-[0-9]share[0-9])'`" ] then if [ -d "/shares/${x}/" ] then logger -s -p daemon.notice -t 'backup' "Syncing ${x}..." rsync ${rarg} --timeout=60 --password-file=/backup/key --delete /shares/${x}/ rsync://${user}@${target}/shares/${x}/ >> /backup/log/run 2>&1 & JOB=$! wait ${JOB} tail -2 /backup/log/run | logger -s -p daemon.info -t 'backup' fi fi done sleep 5 echo -e "From: ${mailfrom}nTo: ${mailto}nSubject: ShareSpace backup.nnCycle finished..." | /usr/sbin/msmtp ${mailto} # Shutdown rsync server cleanup else logger -s -p daemon.notice -t 'backup' "No access to '${target}' - aborting" fi else logger -s -p daemon.notice -t 'backup' "Load average on '${source}' is ${loadavg} - aborting" fi else logger -s -p daemon.notice -t 'backup' "Not the time to make backups - sleeping" fi # Daemonize or stop? if [ "${daemon}" != "yes" ] then logger -s -p daemon.notice -t 'backup' "Backup finished" break fi # Cycle logger -s -p daemon.notice -t 'backup' "Waiting for cycle (${waittime} minutes)..." sleep `expr ${waittime} * 60` & JOB=$! wait ${JOB} logger -s -p daemon.notice -t 'backup' "Running cycle..." done # EOF |
/backup/sync.sh
#!/usr/local/bin/bash # # Sync backup system on ShareSpace drive # ip="192.168.8.4" # Fix permissions find /backup/sharespace/ -type d -exec chmod 700 '{}' ; find /backup/sharespace/ -type f -exec chmod 600 '{}' ; echo "-- Shutting down current backup" ssh -ax root@${ip} "test -f /backup/run.pid && kill `cat /backup/run.pid`" sleep 15 echo "-- Syncing new files" rsync -e 'ssh -ax' -aWv --timeout=30 --exclude '.svn' --delete --delete-excluded /backup/sharespace/ root@${ip}:/backup/ echo "-- Restarting backup" ssh -ax root@${ip} "sh /backup/ssh-wrapper > /dev/null 2>&1; exit" # EOF |
After creating these files set these permissions and start the script:
chmod 700 /backup/sync.sh
/backup/sync.sh
Keep in mind that you setup SSH-keys before you use these scripts 
Have fun!