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One thing to consider is that people already whine about bkbits performance, it's a heavily used (in the disk arm sense) machine. It's a lot easier to just back the data up with BK itself. That said, I'm shopping for SCSI RAIDs :) No tapes. On Fri, Jun 27, 2003 at 09:08:06PM -0700, Joshua Penix wrote: > On Fri, 2003-06-27 at 20:19, Larry McVoy wrote:> > On Fri, Jun 27, 2003 at 08:51:40PM -0400, Scott McDermott wrote: > > > Larry McVoy on Fri 27/06 17:16 -0700:> > > > I don't know if you all realize this but at one point we > > > > had corrupted data in several repositories and the backups > > > > were also shot.> > > > > > ever hear of tapes?> > > > bkbits is 45GB of data and growing. Tapes are completely impractical, > > that's why we have hot spares.> > Boy you do need a good admin :) Done correctly, tapes are quite > practical for that amount of data. A LTO or SDLT drive would back the > entire 45GB thing up on a single tape, with room for at least one to two > more full backups. Granted, you're not going to have tape act as your > hot backup, but it is a good third line of defense. Plus data backed up > to tape is immune from human or software error that may otherwise affect > the hard-drive based data.> > 45GB of code is very compressible and I'm sure good chunks of that don't > change on a weekly basis. I'd imagine you could get a weekly or > bi-weekly full backup to tape in the span of about two hours, and then > do nightly differentials which would probably be only 15 minutes in > length. A filesystem capable of doing snapshots would ensure > consistency of the repositories on tape and would prevent you from > having to shutdown bkbits while backing up.> > --Josh> > -> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- --- Larry McVoy lm at bitmover.com http://www.bitmover.com/lm - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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