How to free space in Tape Library (TS3200)

[jdarko]

Hi All,

I am working on TSM server version 5.5.2 connected to IBM TS3200 Library with two drives and a capacity of 40 slots. For sometimes now i can only check-in a maximum of three scratch tapes and the library gets full. How can i free some space in the Library since this is making all space reclamation to fail?

 

[Raakin]

Seems like you need to do one or more of the following:

• Enable compression
• Purchase more slots (expansion) for your library.
• Reduce the amount of data you keep done in one of two ways
  • Backup less data/servers
  • Reduce the retention/versions
• Upgrade to a denser media (i.e. if on LTO3, upgrade to LTO5, etc)

For right now:

• Check out a few 'FULL' and highly utilized (i.e. 80% +) tapes to make room for scratch tape and allowing reclamation to run (or manually move the data).
  • Please Note: with this option is I do not know of a simple way to ensure the data on the tapes you check out has been backed up to your offsite tapes

My 2 cents

 

[stefanhh]

Hi

TS3200 only allows for 48 Tapes, and if you haven't changed the IO slot to normal slots in the web gui on the Library this would be 45 volumes max seen from TSM. You can't purchase extention to TS3200 in the form of more slots. I'm guessing the DEVCLASS is defined with format=DRIVES so compression to tape should be active, you might try to run reclamation lower, "update stgpool <stgpool_name> reclaim=60" or lower and see if space reclaim kicks in. To help us you might wan't to send us q devcl f=d, q libv, show library output.

Kind Regards
Stefan Thor Hreinsson
Basis

 

[JesperM]

Hi

I sounds as if your tape storage has started the death-spiral. Lack of space due to high amount of reclaimable files - and no free capacity to allow reclamation.

You could consider adding disk-storage - a couple of TBs. And then either do a move data from tape to disk or define the disk-pool as a reclamation pool for your tape pool.

But it's hardly a long term solution.

Good luck

 

[jdarko]

Hi Stefan,
Thanks for the message. below is the result of queries requested.

tsm: TSMPROD>q devcl f=d
Session established with server TSMPROD: Windows
Server Version 5, Release 5, Level 2.0
Server date/time: 12/11/2010 13:52:20 Last access: 12/11/2010 13:50:45


Device Class Name: DISK
Device Access Strategy: Random
Storage Pool Count: 2
Device Type:
Format:
Est/Max Capacity (MB):
Mount Limit:
Mount Wait (min):
Mount Retention (min):
Label Prefix:
Drive Letter:
Library:
Directory:
Server Name:
Retry Period:
Retry Interval:
Twosided:
Shared:
High-level Address:
Minimum Capacity:
WORM: No
Drive Encryption:
Scaled Capacity:
Last Update by (administrator):
Last Update Date/Time: 04/03/2009 11:27:31

Device Class Name: FILE_DBB
Device Access Strategy: Sequential
Storage Pool Count: 0
Device Type: FILE
Format: DRIVE
Est/Max Capacity (MB): 1,024.0
Mount Limit: 20
Mount Wait (min):
Mount Retention (min):
Label Prefix:
Drive Letter:
Library:
Directory: E:\TSMPROD\DBBACKUP
Server Name:
Retry Period:
Retry Interval:
Twosided:
Shared:
High-level Address:
Minimum Capacity:
WORM: No
Drive Encryption:
Scaled Capacity:
Last Update by (administrator): THOMAS
Last Update Date/Time: 05/05/2009 18:19:45

Device Class Name: LTO_LIB
Device Access Strategy: Sequential
Storage Pool Count: 6
Device Type: LTO
Format: ULTRIUM3C
Est/Max Capacity (MB):
Mount Limit: 2
Mount Wait (min): 60
Mount Retention (min): 1
Label Prefix: ADSM
Drive Letter:
Library: LTO_LIB
Directory:
Server Name:
Retry Period:
more... (<ENTER> to continue, 'C' to cancel)

Retry Interval:
Twosided:
Shared:
High-level Address:
Minimum Capacity:
WORM: No
Drive Encryption: Allow
Scaled Capacity:
Last Update by (administrator): CHRISTOPHE
Last Update Date/Time: 04/06/2009 10:37:51

tsm: TSMPROD>q libv

Library Name Volume Name Status Owner Last Use Home Device
Element Type
------------ ----------- ---------------- ---------- --------- ------- ------
LTO_LIB 000601 Private Data 4,099
LTO_LIB 000605 Private Data 4,129
LTO_LIB 000608 Private Data 4,138
LTO_LIB 000609 Private Data 4,128
LTO_LIB 000615 Private Data 4,108
LTO_LIB 000617 Private Data 4,111
LTO_LIB 000621 Private Data 4,117
LTO_LIB 000622 Private Data 4,116
LTO_LIB 000623 Private Data 4,107
LTO_LIB 000626 Private Data 4,139
LTO_LIB 000627 Private Data 4,105
LTO_LIB 000641 Private Data 4,121
LTO_LIB 000648 Private Data 4,103
LTO_LIB 000652 Private Data 4,102
LTO_LIB 000656 Private Data 4,110
LTO_LIB 000657 Private Data 4,098
LTO_LIB 000663 Private Data 4,114
LTO_LIB 000665 Private Data 4,097
LTO_LIB 000674 Private Data 4,113
LTO_LIB 000675 Private Data 4,118
LTO_LIB 000681 Private Data 4,109
LTO_LIB 000684 Private Data 4,106
LTO_LIB 000690 Private Data 4,132
LTO_LIB 000693 Private Data 4,131
LTO_LIB 000701 Private Data 4,120
LTO_LIB 000703 Private Data 4,135
LTO_LIB 000704 Private Data 4,136
LTO_LIB 000722 Private Data 4,127
LTO_LIB 000725 Private Data 4,115
LTO_LIB 000731 Private Data 4,119
LTO_LIB 000734 Private Data 4,104
LTO_LIB 000735 Private Data 4,133
LTO_LIB 000736 Private Data 4,137
LTO_LIB 000739 Private Data 4,130
LTO_LIB 337ADV Private Data 4,101
LTO_LIB 342ADV Private Data 4,096
LTO_LIB 760NNN Private Data 4,125

tsm: TSMPROD>

Hi

TS3200 only allows for 48 Tapes, and if you haven't changed the IO slot to normal slots in the web gui on the Library this would be 45 volumes max seen from TSM. You can't purchase extention to TS3200 in the form of more slots. I'm guessing the DEVCLASS is defined with format=DRIVES so compression to tape should be active, you might try to run reclamation lower, "update stgpool <stgpool_name> reclaim=60" or lower and see if space reclaim kicks in. To help us you might wan't to send us q devcl f=d, q libv, show library output.

Kind Regards
Stefan Thor Hreinsson
Basis