Hello,
we are using a Tandberg Autochanger with LTO3 tapes (400/800GB).
After Bacula reported the VolStatus "Full" after just saving about 260 GB,
we checked the output of demsg an found the following:
[ 7.806343] st 3:0:1:0: Attached scsi tape st0
[ 7.806345] st 3:0:1:0: st0: try direct i/o: yes (alignment 512 B)
[ 3295.705344] st0: Block limits 1 - 16777215 bytes.
[ 3299.906724] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[ 3856.794626] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[ 4027.852762] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[ 4173.406028] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[ 7426.885546] st0: Sense Key : Not Ready [current]
[ 7426.885552] st0: Add. Sense: Medium not present
[ 7489.886551] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[ 7587.498621] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[ 7685.139676] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[ 7790.334630] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[ 7890.184317] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[11107.368911] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[11236.844953] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[11593.028152] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[12614.773569] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[12822.140308] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[12970.124446] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[284116.085677] st0: Sense Key : Not Ready [current]
[284116.085683] st0: Add. Sense: Medium not present
[853425.793613] st0: Sense Key : Not Ready [current]
[853425.793619] st0: Add. Sense: Medium not present
[1824459.457956] st0: Failed to read 65536 byte block with 64512 byte
transfer.
[2185340.457194] st0: Sense Key : Not Ready [current]
[2185340.457200] st0: Add. Sense: Medium not present
We found a posting that suggested to define
Maximum Block Size = 65536
Maximum Network Buffer Size = 65536
in bacula-sd.conf.
But although we didn't forget to restart the Storage Daemon, the error
appaers again and the only about 260 GB are used.
Is this a problem of Bacula or of the st0 driver.
Thanks for any suggestions or hints,
Stefan
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