Pawel Jakub Dawidek writes: > > The goal is the same as the goal for things like compression in ZFS, no > > application change it is "free" for the applications. > > I like the idea, I really do, but it will be soooo expensive because of > ZFS' COW model. Not only file removal or truncation will call bleaching, > but every single file system modification... Heh, well, if privacy of > your data is important enough, you probably don't care too much about > performance. I for one would prefer encryption, which may turns out to be > much faster than bleaching and also more secure.
I think the idea here is that since ZFS encourages the use of lots of small file systems (rather than one or two very big ones), you'd have just one or two very small file systems with crucial data marked as needing bleach, while the others would get by with the usual complement of detergent and switch fabric softener. Having _every_ file modification result in dozens of I/Os would probably be bad, but perhaps not if it's not _every_ modification that's affected. -- James Carlson, KISS Network <[EMAIL PROTECTED]> Sun Microsystems / 1 Network Drive 71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677 _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
