On Tuesday 26 June 2007 00:53, Frank Sweetser wrote: > Kern Sibbald wrote: > > You should read what Linus has to say about dump! I don't remember his > > exact words but something to the effect that "yes, it seems to work, but if > > you really understood kernel caching, you would realize that it cannot work > > and that one day you will get burned." That's paraphrased. By the way, > > aside > > It sounds like you're talking about this quote from Linus, regarding the fact > that dump works by reading the underlying device rather than going through the > filesystem API of the kernel: > > >> Note that dump simply won't work reliably at all even in 2.4.x: the > >> buffer cache and the page cache (where all the actual data is) are not > >> coherent. This is only going to get even worse in 2.5.x, when the > >> directories are moved into the page cache as well. > >> > >> So anybody who depends on "dump" getting backups right is already playing > >> Russian roulette with their backups. It's not at all guaranteed to get > >> the right results - you may end up having stale data in the buffer cache > >> that ends up being "backed up". > >> > >> Dump was a stupid program in the first place. Leave it behind. > >
Yes, that is the quote. Thanks. > > > from tar, dump is the major component of Amanda :-) I wonder when the > > Zmanda VCs will realize that they spent $13 million for dump technology > > that Linus says is destined to break :-) amusing (at least to me). > > More fodder for a Bacula vs other programs page... =) > > -- > Frank Sweetser fs at wpi.edu | For every problem, there is a solution that > WPI Network Engineer | is simple, elegant, and wrong. - HL Mencken > GPG fingerprint = 6174 1257 129E 0D21 D8D4 E8A3 8E39 29E3 E2E8 8CEC > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
