you can find the ZFS on-disk spec at: http://opensolaris.org/os/community/zfs/docs/ondiskformat0822.pdf
I don't know of any way to produce snapshots at periodic intervals other than shell scripts (or a cron job), but the creation and deletion of snapshots at command level is fairly instantaneous. If you have a need for continous snapshots (check points) you may want to check out the NILFS system (linux open source) available from NTT japan at: http://www.nilfs.org/en/ NILFS does continous check points (on all write events), is log based and allows configuration of the window size (time based) within which to keep active checkpoints ... after this amount of time, old checkpoints are discarded and their space is reclaimed regards, Bill This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
