add snapshots and zfs send/recv

libvirt-zsh-backup.sh

@@ -39,5 +39,34 @@ for disk in $VMDISKS
 do
     DISKSPEC+="--discspec $disk,file=/srv/snapshots/$VM/$VM-$disk-$SNAPNAME.qcow2,snapshot=external "
 done
-echo $DISKSPEC
+
+virsh snapshot-create-as --domain $VM --name $SNAPNAME --quiesce --atomic --disk-only $DISKSPEC > /dev/null
+if [ $? -ne 0 ]
+then
+    echo "VM snapshot creation failed" >&2
+    exit 1
+fi
+
+zfs snapshot "$SRCZFS"@"$SNAPNAME"
+if [ $? -ne 0 ]
+then
+    echo "ZFS snapshot creation failed" >&2
+    exit 1
+fi
+
+for disk in $VMDISKS
+do
+    virsh blockcommit $VM $disk --pivot --active >/dev/null
+done
+
+VMDISKS=$(virsh domblklist $VM | egrep vd.)
+for disk in $VMDISKS
+do
+    if [[ $disk == *"snapshot"* ]]
+    then
+	echo "Snapshot deletion failed for $disk" >&2
+    fi
+done
+
+zfs send "$SRCZFS"@"$SNAPNAME" | pv -L 500M | ssh $DESTHOST sudo zfs recv -F $DESTZFS