70 messages in org.freebsd.freebsd-scsiSCSI tape data loss| From | Sent On | Attachments |
|---|---|---|
| Kern Sibbald | Jun 1, 2003 10:54 am | |
| Dan Langille | Jun 1, 2003 11:32 am | |
| Justin T. Gibbs | Jun 1, 2003 1:08 pm | |
| Kern Sibbald | Jun 1, 2003 2:44 pm | |
| Justin T. Gibbs | Jun 1, 2003 3:39 pm | |
| Matthew Jacob | Jun 1, 2003 5:00 pm | |
| Matthew Jacob | Jun 1, 2003 5:13 pm | |
| Dan Langille | Jun 1, 2003 6:58 pm | |
| Matthew Jacob | Jun 1, 2003 7:03 pm | |
| Kern Sibbald | Jun 2, 2003 1:28 am | |
| Kern Sibbald | Jun 2, 2003 1:29 am | |
| Kern Sibbald | Jun 2, 2003 1:57 am | |
| Kern Sibbald | Jun 2, 2003 3:45 am | |
| Dan Langille | Jun 2, 2003 4:28 am | |
| Matthew Jacob | Jun 2, 2003 8:05 am | |
| Justin T. Gibbs | Jun 2, 2003 8:10 am | |
| Dan Langille | Jun 2, 2003 8:14 am | |
| Matthew Jacob | Jun 2, 2003 8:21 am | |
| Kern Sibbald | Jun 2, 2003 8:27 am | |
| Dan Langille | Jun 2, 2003 9:46 am | |
| Dan Langille | Jun 2, 2003 11:05 am | |
| Matthew Jacob | Jun 2, 2003 11:11 am | |
| Justin T. Gibbs | Jun 2, 2003 11:49 am | |
| Dan Langille | Jun 2, 2003 12:06 pm | |
| Justin T. Gibbs | Jun 2, 2003 12:10 pm | |
| Matthew Jacob | Jun 2, 2003 1:14 pm | |
| Dan Langille | Jun 2, 2003 2:16 pm | |
| Matthew Jacob | Jun 2, 2003 2:24 pm | |
| Kern Sibbald | Jun 2, 2003 2:46 pm | |
| Matthew Jacob | Jun 2, 2003 2:55 pm | |
| Kern Sibbald | Jun 2, 2003 3:31 pm | |
| Carl Reisinger | Jun 2, 2003 3:44 pm | |
| Matthew Jacob | Jun 2, 2003 3:44 pm | |
| Dan Langille | Jun 2, 2003 6:37 pm | |
| Kern Sibbald | Jun 3, 2003 12:28 am | |
| Kern Sibbald | Jun 3, 2003 6:07 am | |
| Carl Reisinger | Jun 3, 2003 6:19 am | |
| Kern Sibbald | Jun 3, 2003 6:37 am | |
| Carl Reisinger | Jun 3, 2003 7:01 am | |
| Matthew Jacob | Jun 3, 2003 7:34 am | |
| Justin T. Gibbs | Jun 3, 2003 7:51 am | |
| Kern Sibbald | Jun 3, 2003 8:05 am | |
| Kern Sibbald | Jun 3, 2003 8:11 am | |
| Matthew Jacob | Jun 3, 2003 9:03 am | |
| Dan Langille | Jun 3, 2003 9:10 am | |
| Justin T. Gibbs | Jun 3, 2003 9:24 am | |
| Kern Sibbald | Jun 3, 2003 9:40 am | |
| Justin T. Gibbs | Jun 3, 2003 10:03 am | |
| Kern Sibbald | Jun 3, 2003 10:19 am | |
| Kern Sibbald | Jun 3, 2003 10:34 am | |
| Matthew Jacob | Jun 3, 2003 11:00 am | |
| Matthew Jacob | Jun 3, 2003 11:16 am | |
| Matthew Jacob | Jun 3, 2003 11:39 am | |
| Justin T. Gibbs | Jun 3, 2003 12:12 pm | |
| Dan Langille | Jun 3, 2003 12:43 pm | |
| Matthew Jacob | Jun 3, 2003 12:46 pm | |
| Kern Sibbald | Jun 3, 2003 1:05 pm | |
| PostMaster General | Jun 3, 2003 2:21 pm | |
| Kern Sibbald | Jun 4, 2003 12:20 am | |
| Matthew Jacob | Jun 4, 2003 7:51 am | |
| Kern Sibbald | Jun 4, 2003 9:51 am | |
| Kern Sibbald | Jun 6, 2003 7:38 am | |
| Dan Langille | Jun 6, 2003 8:59 am | |
| Matthew Jacob | Jun 6, 2003 11:50 am | |
| Dan Langille | Jun 20, 2003 6:17 pm | |
| Dan Langille | Jul 1, 2003 5:07 pm | |
| Matthew Jacob | Jul 1, 2003 11:11 pm | |
| Michael L. Squires | Aug 25, 2003 4:16 am | |
| Dan Langille | Aug 25, 2003 9:13 am | |
| Michael L. Squires | Aug 27, 2003 5:27 am |
| Subject: | SCSI tape data loss | |
|---|---|---|
| From: | Matthew Jacob (mja...@feral.com) | |
| Date: | Jun 2, 2003 11:11:23 am | |
| List: | org.freebsd.freebsd-scsi | |
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