Hi!

I'm using Bacula 5.0.2 to back up to a tape library
which has two LTO-4 FC tape drives. Backup speed is
around 95-100 MB/s which is quite ok (using a DAS
for spooling data though).

Now, when running a copy job that copies backups
from a tape from the full or incr backup pool to
a tape from the offsite pool, speed reaches 50MB/s
maximum, so it's just half as fast as the backups.

What could be the reason for that?

TIA!
Regards,
Wolfram

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