updated 10:10 am EDT, Wed June 10, 2009
Snow Leopard includes ZFS?
The long-expected addition of ZFS to Snow Leopard Server may have been silently dropped. Although Apple has previously indicated that the file management system would be a part of Server, ZFS was not mentioned in yesterday's keynote, and is not listed in the features on Apple's website.
ZFS has been labeled an important development for Mac OS X, a supplement to Apple's current HFS+ and UFS read-only systems. The update would have added a tree-based 128-bit checksum system that verifies and corrects, and a pooled storage model, eliminating the need for partitions. It also would also have enabled live disk-scrubbing capabilities that read all storage blocks, and compare them to the 128-bit checksum tree to correct errors.
Apple has not issued any comment one way or another on the matter.