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ZFS Automatic Snapshot Daemon
This is a daemon, written in Python 3, that will schedule regular snaphots of ZFS datasets (pools, filsystems) according to a set of configurable schedules. Options for interval and crontab-style schedules are available.
The daemon includes an installer for macOS
launchd. For Linux,
see the example
systemd config file in
docs. Modify as needed,
/etc/systemd/system folder, run
systemctl start zasd
systemctl enable zasd as root to run on boot.
Snapshots may be made conditional with the
on each schedule. In this mode, a snapshot will only be taken if
a dataset has been modified since the last snapshot.
The daemon should not interfere with other snapshots you have
on the system, unless you give them names that adhere to the
zasd uses, and the
happen to match of the tags in
zasd.conf.py. If you're already
using similar syntax for something else, you may need to change
separator setting in
DISCLAIMER: This program is still in beta. Use at your own risk. It works fine on my system, but your mileage may vary.