Even if all the volumes were at 100% used, it is very unlikely they would all be at the same amount of data retained, some data compresses better than others. So you may have some at 900gb and others at 1.6tb.
-----Original Message----- From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of Botelho, Tiago (External) Sent: Wednesday, January 18, 2012 9:27 AM To: [email protected] Subject: LTO4 Tape Volumes with diferent Estimated Capacity Hello I have several tape volumes (LTO4) with different Estimated Capacity. What can cause this situation? Ex: A00035L4 WIN_SRV_T TS3310 629.5 G 95.4 Full A00039L4 WIN_SRV_T TS3310 1.1 T 98.2 Full A00101L4 WIN_SRV_T TS3310 884.8 G 84.4 Full A00113L4 WIN_SRV_T TS3310 1.0 T 93.7 Full A00118L4 WIN_SRV_T TS3310 1.0 T 73.6 Full A00128L4 WIN_SRV_T TS3310 1.0 T 99.2 Full A00129L4 WIN_SRV_T TS3310 969.1 G 93.7 Full A00133L4 WIN_SRV_T TS3310 934.8 G 96.1 Full All tapes and Drives are LTO4, TSM Server 553 for AIX. The devc are configured as: Device Class Name: TS3310 Device Access Strategy: Sequential Storage Pool Count: 16 Device Type: LTO Format: ULTRIUM4C Est/Max Capacity (MB): Mount Limit: DRIVES Mount Wait (min): 60 Mount Retention (min): 60 Label Prefix: ADSM Library: TS3310 Directory: Server Name: Retry Period: Retry Interval: Shared: High-level Address: Minimum Capacity: WORM: No Drive Encryption: Off Scaled Capacity: Last Update by (administrator): ADM Last Update Date/Time: 07/27/09 17:32:05 Cumprimentos / Best regards Tiago Botelho
