Tape Retention with DPM2010
Posted: 13 May 2011, 11:57
Hi,
We have created 4 Tape libraries. Each one is connected to its own USB 3.0 disk (which is changed based on the retention scheme once a week).
We created file media on each disk. Tape retention in DPM2010 is set as follows:
Library #1 and #4 (40 tapes each): 4 Weeks, 6 Months
Library #2 and #3 (10 tapes each): 2 Weeks
I'm aware that it's DPM's responsibility to mark tapes as free but it seems that DPM uses empty tapes as long as there are any available. This causes an overflow on the disk since there is not enough space available to hold more than one set of data.
What is the recommended way to handle this? Currently I'm deleting the tape files when mounting the disk again and create new tapes. This could be scripted but it doesn't feel right.
I would appreciate some advice in this matter.
Thanks in advance.
Uwe
We have created 4 Tape libraries. Each one is connected to its own USB 3.0 disk (which is changed based on the retention scheme once a week).
We created file media on each disk. Tape retention in DPM2010 is set as follows:
Library #1 and #4 (40 tapes each): 4 Weeks, 6 Months
Library #2 and #3 (10 tapes each): 2 Weeks
I'm aware that it's DPM's responsibility to mark tapes as free but it seems that DPM uses empty tapes as long as there are any available. This causes an overflow on the disk since there is not enough space available to hold more than one set of data.
What is the recommended way to handle this? Currently I'm deleting the tape files when mounting the disk again and create new tapes. This could be scripted but it doesn't feel right.
I would appreciate some advice in this matter.
Thanks in advance.
Uwe