Hello,

You probably forgot to use the non-rewinding drive name when assigning the SD to a drive.

e.g /dev/st0   is a rewinding drive
     /dev/nst0  is a non-rewinding drive

You want the non-rewinding drive when using Bacula.  See the documentation.

Best regards,
Kern

On 5/5/21 6:53 AM, fk+bacula--- via Bacula-users wrote:

Hi there,
I'm using a Quantum LTO-7 tape drive. When I start a job, the drive does with the tape:

bacula-sd JobId 269: Volume "CRInc-001" previously written, moving to end of data.
bacula-sd JobId 269: Ready to append to end of Volume "CRInc-001" at file=5.
bacula-sd JobId 269: Spooling data ...

so far so good. After 30 min, the tape drive rewinds the tape to BOT (spooling is still in progress) and after spooling is completed, the tape is moved again to the end of data and then it starts despooling.

Question 1): is the rewinding of the tape after 30 min a feature of bacula or of the tape drive? Is it to protect the out taken tape? Can I change the 30 min time and how long will be good?

Question 2): Can I avoid moving to the end before starting the data spooling? Why does bacula do this? If is there during despooling no enough space left, it will ask for a new volume. Or other spoken: can it start spooling without checking the end of the tape? How to configure it?

Question 3): Would it be better to do "backup to disk to tape" instead of using spooling to prevent unnecessary forward and back winding of the tapes?

Thanks, Frank



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