Date: Mon, 2 Jun 2003 11:11:40 -0700 (PDT) From: Matthew Jacob <mjacob@feral.com> To: Dan Langille <dan@langille.org> Cc: Kern Sibbald <kern@sibbald.com> Subject: Re: SCSI tape data loss Message-ID: <20030602110836.H71034@beppo> In-Reply-To: <3EDB59A4.27599.C93270FB@localhost> References: <3EDB31AB.16420.C8964B7D@localhost> <3EDB59A4.27599.C93270FB@localhost>
next in thread | previous in thread | raw e-mail | index | archive | help
> And we have finish: > > ./tpt -v -b 5120 -r 10000000000 -n 10 -f /dev/nrsa0 > .......Rewind Tape > ........Write Pass > WEOT at File 0 Record 694983 Offset 0 (3558312960 total bytes written) > Elapsed Seconds: 5467; Data Rate: 0.620633MB/s > .......Rewind Tape > .........Read Pass > REOT at File 1 Record 0 Offset 0 (3558312960 total bytes read) > Elapsed Seconds: 4422: Data Rate: 0.7673MB/s > -- Now, tape_pattern_tester actually does some somewhat simplistic data integrity checking, so I tend to believe that the bytes read do match the bytes written. This now begs the question as to why Bacula lost some records. I'm going to ponder this a bit today while I'm at one of my paying gigs. I'll hook up a tape drive to a FreeBSD box @ Feral tomorrow and see if I can anylyze Bacula a bit closer. -matt
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030602110836.H71034>