https://groups.google.com/d/msg/maczfs- ... CtOc6Ze54J observes, amongst the features of ZEVO Community Edition 1.1.1:
1. …
2. automatically creates snapshots daily …
3. autoscrubs weekly …
With what's integral to ZEVO:
- automatic snapshots can be daily, hourly or weekly
- automatic scrubs can be weekly, semi-monthly or monthly.
Some readers may wonder why:
A summary of what's installed:
- Code: Select all
sh-3.2$ ls /System/Library/Filesystems/zfs.fs/Contents/Resources/launchd/zfs_auto*
/System/Library/Filesystems/zfs.fs/Contents/Resources/launchd/zfs_autopoolscrubs-monthly.plist
/System/Library/Filesystems/zfs.fs/Contents/Resources/launchd/zfs_autopoolscrubs-semimonthly.plist
/System/Library/Filesystems/zfs.fs/Contents/Resources/launchd/zfs_autopoolscrubs-weekly.plist
/System/Library/Filesystems/zfs.fs/Contents/Resources/launchd/zfs_autosnapshots-daily.plist
/System/Library/Filesystems/zfs.fs/Contents/Resources/launchd/zfs_autosnapshots-hourly.plist
/System/Library/Filesystems/zfs.fs/Contents/Resources/launchd/zfs_autosnapshots-weekly.plist
Limitations to what's integral to ZEVO CE 1.1.1From what I can tell, after a year or so of testing the integral approach to automated snapshots:
- pools benefit only if automatic import occurs relatively soon after boot
- child file systems do not benefit (see above).
Point (a) in simple terms:
- aim for disks to be present/connected before or during startup of the operating system.
Technically: I guess, you should allow ZEVO to perform its dynamic import before the operating system loads the daemon for the snapshots.
Automated scrubsNot tested by me. I don't imagine any issue. ylluminate might like to comment.
Side notesAs Apple Core Storage is not designed to allow automated imports, so ZFS pools that use Core Storage for encryption can not benefit from ZEVO's automated snapshots. (For me this is not an issue. My home directory gains snapshots from regular use of
ZFS TimeMachine (jollyjinx).)
There's another for the released Community Edition of ZEVO being not full-featured (less appealing than the beta) for automated snapshots, but I'll prefer to keep this quiet … at least until after we discover what's to happen to ZEVO for Mavericks.