Here's one possible reason that a read-only ZFS would be useful: DVD-ROM distribution.
Sector errors on DVD are not uncommon. Writing a DVD in ZFS format with duplicated data blocks would help protect against that problem, at the cost of 50% or so disk space. That sounds like a lot, but with BluRay etc. coming along, maybe paying a 50% penalty isn't too bad. (And if ZFS eventually supports RAID on a single disk, the penalty would be less.) Note that Mac OS X includes read-only NTFS support already, so it's not totally surprising that a read-only ZFS implementation would be delivered. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
