> Hello Toby, > > Tuesday, December 12, 2006, 4:18:54 PM, you wrote: > TT> On 12-Dec-06, at 9:46 AM, George Wilson wrote: > > >> Also note that the UB is written to every vdev (4 per disk) so the > >> chances of all UBs being corrupted is rather low. > > It depends actually - if all your vdevs are on the same array with > write back cache set to on you actually can end-up with all UB > corrupted - at least in theory.
Do such caches respond to explicit flushes? My understanding is that it should try to flush between writing the front 2 and the back 2. Not that even that would guarantee anything if there are real bugs in the cache code, but it would improve the odds. -- Darren Dunham [EMAIL PROTECTED] Senior Technical Consultant TAOS http://www.taos.com/ Got some Dr Pepper? San Francisco, CA bay area < This line left intentionally blank to confuse you. > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
