>And the posts related to leopard handed out at wwdc 07 seems to >indicate that zfs is not yet fully implemented, which might be the >real reason that zfs isn't the default fs.
I suspect there are two other strong reasons why it's not the default. 1. ZFS is a new and immature file system. HFS+ has a proven track record and most of its bugs have been long since ironed out. (Since it's open-source, you can go look at how quickly it's changing these days.) It would be ludicrous to make a new file system the default for everyone. (This isn't unique to Apple, nor to ZFS. Look at the rollout for XFS on Irix, for instance.) 2. ZFS doesn't make much sense for high-performance laptops. Laptop drives are slow enough without artificially increasing the number of seeks on writes. Apple makes a LOT of money from laptops. It's also unclear how well ZFS would play with other latency- and CPU-sensitive applications such as video. Not that it's bad, we just don't know yet. Apple may well release a read/write ZFS implementation. But (my predictions) it won't be a “default” file system any time soon, it will be rolled out for use by early adopters first; and it will be after it’s had at least a couple of years to stabilize. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
