date=`date`
starttime=`date +%s`
+# Make sure we aren't already running
+SCRIPT_NAME=${0##*/}
+PROCESS_LIST=`tempfile`
+ps -ef | grep -e "$SCRIPT_NAME" | grep -v grep | grep -v $$ | grep -v $PPID >> $PROCESS_LIST
+if [[ $? == 0 ]]; then
+ echo "$date Another $SCRIPT_NAME process is already running" >> $mylogfile
+ cat $PROCESS_LIST >> $mylogfile
+ exit 1
+fi
+[[ -e "$PROCESS_LIST" ]] && rm -f $PROCESS_LIST
+
# This function checks to see if our runtime has exceeded our stoptime
timeexceeded() {
if [[ $maxruntime == 0 ]]; then
}
trap cleanup_and_exit INT
+fatal_and_exit() {
+ # echo message to terminal
+ echo -e 2>&1 "$1"
+ # send email notification
+ echo -e "$1" | $mailx -s "zfs-replicate-all on $hostname failed" "$mailto"
+ exit 1
+}
+
# This function executes the replicate command and checks the stoptime
replicate() {
zfs-replicate $* >> $logfile 2>&1
# This function obtains the date a given snapshot was created in epoch seconds
snapshot_age() {
- snapshot=${local_pool}/${1}${previous_backup_marker}
+ snapshot=${backup_pool}/${1}${previous_backup_marker}
$zfs list -t snapshot ${snapshot} > /dev/null 2>&1
if [ $? == 0 ]; then
$zfs get creation ${snapshot} > /dev/null 2>&1
fi
}
-# Obtain the zpool guid for the local pool
-local_pool_guid=`zpool get guid $local_pool 2>&1 | grep $local_pool | awk '{ print $3 }'`
-zpool get guid $local_pool > /dev/null 2>&1
+# Import the local backup pool if needed and the option is given to do so, else error out
+zpool list -H "$backup_pool" >/dev/null 2>&1
if [ $? != 0 ]; then
- echo >&2 "-E- Unable to extract the guid for the local pool: $local_pool"
- exit 1
+ if [[ $import_export_backup_pool == 1 ]]; then
+ zpool import $backup_pool
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- unable to import the backup pool $backup_pool on $hostname" "$mailto"
+ fi
+ else
+ fatal_and_exit "-E- The local backup pool on $hostname, '$backup_pool' doesn't seem to exist." "$mailto"
+ fi
+fi
+
+# Obtain the zpool guid for the local backup pool
+backup_pool_guid=`zpool get guid $backup_pool 2>&1 | grep $backup_pool | awk '{ print $3 }'`
+zpool get guid $backup_pool > /dev/null 2>&1
+if [ $? != 0 ]; then
+ fatal_and_exit "-E- Unable to extract the guid for the local backup pool on $hostname: $backup_pool" "$mailto"
fi
# Setup our backup marker names
-current_backup_marker=@current-backup-${local_pool_guid}
-previous_backup_marker=@previous-backup-${local_pool_guid}
+current_backup_marker=@current-backup-${backup_pool_guid}
+previous_backup_marker=@previous-backup-${backup_pool_guid}
# Auto snapshot every zfs filesystem on the system specified below
echo "$date ZFS replicate started" >> $logfile
# Replicate the sorted filesystems
for filesystem in $sorted_filesystems; do
- echo "-> Replicating $remote:$filesystem to ${local_pool}/${filesystem}" | tee -a $mylogfile
+ echo "-> Replicating $remote:$filesystem to ${backup_pool}/${filesystem}" | tee -a $mylogfile
replicate $remote $filesystem
done
+# Export the local pool if told to do so
+if [[ $import_export_backup_pool == 1 ]]; then
+ # Don't export the pool if there is a currently running zfs-scrub operation
+ ps -ef | grep -q "zfs-scrub ${backup_pool}" | grep -v grep
+ if [ $? != 0 ]; then
+ zpool export $backup_pool
+ if [ $? != 0 ]; then
+ fatal_and_exit "-E- unable to export the local backup pool $backup_pool on $hostname" "$mailto"
+ fi
+ fi
+fi
+
# All done
echo `date` ZFS replicate complete >> $logfile
echo `date` ZFS replicate complete | tee -a $mylogfile