5.7 TB Seems to be pretty normal to me. As the name of the storage pool
implies video content, I think you won`t get much more compression with
LTO enabled hardware compression on video files with a decent codec.
In our environment we observed a LTO7 Capacity of 9.64T in average per
volume (median 9.6T) on univeral/mixed data. The best we saw so far was
a Volume with ~14TB.
When disabling compression we got steady 5.5 T on each LTO Tape.

Regards Stephan


On 08/20/2017 09:21 AM, rouzen AT univ.haifa.ac DOT il wrote:
> Hi to all
> 
> I think I found the explanation:
> 
> ULTRIUM7C - Specifies that Spectrum Protect writes data that uses the 
> ULTRIUM7 recording format with compression. Only Ultrium 7 media can be 
> written to with the ULTRIUM7C format. The average capacity of an Ultrium 7 
> cartridge when the ULTRIU7C format is used is 15 TB.
> 
> Best Regards
> 
> Rovert
> 
> Hi to all
> 
> More information:   Used in DEVCLASS  format=DRIVE
> 
> My drivers are at version 6.2.5.7
> 
> Best Regards
> 
> Robert
> 
> Hi to all
> 
> I add a new library scsi LTO7 , in documentation capacity between 6TB – 15TB .
> 
> I run a backup of a client with audio / video files and I got this output
> 
> Protect: ADSM2>q vol stg=lto7_2
> 
> Volume Name         Storage Pool Name     Device Class Name    Estimated     
> Pct Util    Volume Status
> -----------------           -----------                          ----------   
>                       ---------          -----           --------
> ESJ407L7                     LTO7_2                              LTO7CLASS    
>                5.7 T                100.0        Full
> 
> I was expected to get more capacity ! In client I didn’t have compression 
> CLIENT or YES
> 
> Did I missed something to define ?
> 
> Here the ouput of q stg LTO7_2 f=d
> 
> Protect: ADSM2>q stg lto7_2 f=d
> 
>                      Storage Pool Name: LTO7_2
>                      Storage Pool Type: Primary
>                      Device Class Name: LTO7CLASS
>                           Storage Type: DEVCLASS
>                             Cloud Type:
>                              Cloud URL:
>                         Cloud Identity:
>                         Cloud Location:
>                     Estimated Capacity: 29,709 G
>                     Space Trigger Util:
>                               Pct Util: 20.1
>                               Pct Migr: 40.0
>                            Pct Logical: 100.0
>                           High Mig Pct: 100
>                            Low Mig Pct: 99
>                        Migration Delay: 0
>                     Migration Continue: Yes
>                    Migration Processes: 1
>                  Reclamation Processes: 1
>                      Next Storage Pool:
>                   Reclaim Storage Pool:
>                 Maximum Size Threshold: No Limit
>                                 Access: Read/Write
>                            Description: VIDEOS
>                      Overflow Location:
>                  Cache Migrated Files?:
>                             Collocate?: No
>                  Reclamation Threshold: 100
>              Offsite Reclamation Limit:
>        Maximum Scratch Volumes Allowed: 5
>         Number of Scratch Volumes Used: 2
>          Delay Period for Volume Reuse: 0 Day(s)
>                 Migration in Progress?: No
>                   Amount Migrated (MB): 0.00
>       Elapsed Migration Time (seconds): 0
>               Reclamation in Progress?: No
>         Last Update by (administrator): ROBERT
>                  Last Update Date/Time: 08/16/2017 13:32:22
>               Storage Pool Data Format: Native
>                   Copy Storage Pool(s):
>                    Active Data Pool(s):
>                Continue Copy on Error?: Yes
>                               CRC Data: No
>                       Reclamation Type: Threshold
>            Overwrite Data when Deleted:
>                      Deduplicate Data?: No
>   Processes For Identifying Duplicates:
>                             Compressed:
>    Additional space for protected data:
>             Total Unused Pending Space:
>                  Deduplication Savings:
>                    Compression Savings:
>                      Total Space Saved:
>                         Auto-copy Mode: Client
> Contains Data Deduplicated by Client?: No
>           Maximum Simultaneous Writers:
>                      Protect Processes:
>                Protection Storage Pool:
>          Protect Local Storage Pool(s):
>               Reclamation Volume Limit:
> Date of Last Protection to Remote Pool:
> Date of Last Protection to Local Pool:
>           Deduplicate Requires Backup?:
>                              Encrypted:
>              Cloud Space Utilized (MB):
>                            Bucket Name:
>               Local Estimated Capacity:
>                         Local Pct Util:
>                      Local Pct Logical:
> 
> Best Regards
> 
> Robert
> 
> 
> [cid:[email protected]]<http://computing.haifa.ac.il/>
> 
> רוברט אוזן
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