jericho kfullert # mt -f /dev/nst0 status SCSI 2 tape drive: File number=0, block number=0, partition=0. Tape block size 0 bytes. Density code 0x41 (DLT 40GB). Soft error count since last status=0 General status bits on (41010000): BOT ONLINE IM_REP_EN jericho kfullert # btape -c /etc/bacula/bacula-sd.conf /dev/nst0 Tape block granularity is 1024 bytes. btape: butil.c:286 Using device: "/dev/nst0" for writing. btape: btape.c:368 open device "DLT80" (/dev/nst0): OK *test === Write, rewind, and re-read test === I'm going to write 1000 records and an EOF then write 1000 records and an EOF, then rewind, and re-read the data to verify that it is correct. This is an *essential* feature ... btape: btape.c:825 Wrote 1000 blocks of 64412 bytes. btape: btape.c:499 Wrote 1 EOF to "DLT80" (/dev/nst0) btape: btape.c:841 Wrote 1000 blocks of 64412 bytes. btape: btape.c:499 Wrote 1 EOF to "DLT80" (/dev/nst0) btape: btape.c:850 Rewind OK. 06-Mar 13:33 btape: btape Error: block.c:317 Volume data error at 0:130! Block checksum mismatch in block=130 len=64448: calc=4070e781 blk=622488fc btape: btape.c:862 Read block 131 failed! ERR=Input/output error *quit jericho kfullert # mt -f /dev/nst0 status SCSI 2 tape drive: File number=0, block number=131, partition=0. Tape block size 0 bytes. Density code 0x41 (DLT 40GB). Soft error count since last status=0 General status bits on (1010000): ONLINE IM_REP_EN jericho kfullert #