Submit Hint Search The Forums LinksStatsPollsHeadlinesRSS
14,000 hints and counting!


Click here to return to the '10.5: Unmount ZFS filesystems on USB drives' hint
The following comments are owned by whoever posted them. This site is not responsible for what they say.
10.5: Unmount ZFS filesystems on USB drives
Authored by: rswwalker on Jan 11, '09 10:58:35AM

As far as ZFS basics go look at the wikipedia entry on it.

By far the biggest benefit I see is the error detecting/correcting feature which verifies that all data is accurate on the disk media which prevents undetected corruption.

The copy-on-write transactional log system is nice, all data written is written to new disk blocks, and only after it is confirmed that it is written are the old blocks dereferenced, that means that all data on disk is consistent, or no need to ever fsck a file system on mount!

The copy-on-write system means that disk snapshots take no overhead or additional performance penalty, so make as many as you want, which would be a killer use for Time Machine instead of it's hard links between directories which are wasteful and time consuming.

File systems can instantly be rolled back to any previous snapshot.

There are plenty more, but by now one should see that ZFS would provide much better reliability for disk media, fixed or removable on a consumer system like OS X.



[ Reply to This | # ]