Automatic ZFS snapshots?

[Richard Todd]

Sverre Svenningsen <ss.alert at online.no> writes:

> Sun has created a utility that lets you manage automated snaphots, as
> detailed here: http://blogs.sun.com/timf/entry/
> zfs_automatic_snapshots_now_with
>
> Has anyone looked into a method to accomplish something similar on
> the FreeBSD port?
> A lot of the value in snaphots lie in the .zfs directories where
> users can fish out backups of their damaged or deleted files without
> help from an admin - but for this to work there has to be a system in
> place that makes new snaphots on a schedule, and also purges the
> snaphots that have become too old.

Well, if you just want regular creation of snapshots and removal of old 
snapshots on a specified schedule, /usr/ports/sysutils/freebsd-snapshot 
might be a good place to start hacking, as it has a set of scripts that
do this for UFS snapshots.