Rainer J.H. Brandt wrote: > Ronald, > > thanks for your comments. > > I was thinking about this scenario: > > Host w continuously has a UFS mounted with read/write access. > Host w writes to the file f/ff/fff. > Host w ceases to touch anything under f. > Three hours later, host r mounts the file system read-only, > reads f/ff/fff, and unmounts the file system. > > My assumption was: > > a1) This scenario won't hurt w, > a2) this scenario won't damage the data on the file system, > a3) this scenario won't hurt r, and > a4) the read operation will succeed, > > even if w continues with arbitrary I/O, except that it doesn't > touch anything under f until after r has unmounted the file system. > > Of course everything that you and Tim and Casper said is true, > but I'm still inclined to try that scenario.
you might get lucky once (note: I said "might"), but there's no guarantee, and sooner or later this approach *will* cause data corruption. wouldn't it be much simpler to use NFS & automounter for this scenario (I didn't follow the whole thread, so this may have been discussed already)? Michael -- Michael Schuster Sun Microsystems, Inc. recursion, n: see 'recursion' _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
