As Casper pointed out, the right thing to do is to build applications such that they can detect mid-transaction state and roll it back (or forward, if there's enough data). Then mid-transaction snapshots are fine, and the lack of APIs by which to inform the filesystem of application transaction boundaries becomes much less of an issue (adding such APIs is not a good solution, since it'd take many years for apps to take advantage of them and more years still for legacy apps to be upgraded or decomissioned).
The existing FS interfaces provide enough that one can build applications this way. Nico -- _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
