Hello all Thank you for your all answers.
Regarding to your experience what is more efficiency regarding to tape usage capacity (increase tape amount of data stored)? Compression on client or compression on Drive(HW)? Cumprimentos / Best regards Tiago Botelho -----Original Message----- From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Botelho, Tiago (External) Sent: quarta-feira, 18 de Janeiro de 2012 15:27 To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] 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