zfs_make_snapshots.py

#!/usr/local/bin/python
#Used to make snapshot of all the file systems on a zpool.

import commands
import subprocess
import time
import os

timestamp = time.strftime("%Y%m%d-%H%M")

zpoolName = "storage"
zfsList = commands.getoutput("zfs list -o name | grep %s/" % zpoolName)

for zfsFileSystems in zfsList.split("\n"):
        print "Snapshoting-> %s" % (zfsFileSystems)
        commands.getoutput("zfs snapshot %s@%s" % (zfsFileSystems, timestamp))

zfs_remove_snapshots.py

#!/usr/local/bin/python
#Used to remove old snapshots of all the file systems on a zpool.

import commands
import subprocess
import time
import datetime

now = datetime.datetime.now()
zpoolName = "storage"

zfsList = commands.getoutput("zfs list -H -t snapshot | awk '{print $1}' | grep %s/" % zpoolName)

for zfsSnapshot in zfsList.split("\n"):
        dateSnapshot = datetime.datetime.strptime(zfsSnapshot.split("@")[1], "%Y%m%d-%H%M")
        if (now - dateSnapshot) >= datetime.timedelta(days = 30):
                print "Removing-> %s" % (zfsSnapshot)
                commands.getoutput("zfs destroy %s" % (zfsSnapshot))