On Sun, Jun 17, 2007 at 09:38:51PM -0700, Anton B. Rang wrote: > 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.)
It would be an interesting project to create some software that took a directory (or ZFS filesystem) to be written to a CD or DVD and optimized the layout for redundancy. That is, choose the compression method (if any), and then, in effect, partition the CD for RAID-Z or mirroring to stretch the data to fill the entire disc. It wouldn't necessarily be all that efficient to access, but it would give you resiliency against media errors. Adam -- Adam Leventhal, Solaris Kernel Development http://blogs.sun.com/ahl _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
