Deduplication System Capacity - HP StorageWorks 12000 User Manual

NOTE:
If a cartridge is full and all jobs on it have been delta-differenced except for one job that is waiting
for another backup, you can have the cartridge reclaimed by temporarily disabling the one remaining
backup job. Disabling the backup type disables all instances of that backup type on all cartridges
that have not yet been delta-differenced. When you re-enable the backup type, it allows deduplication
for future instances of that backup type.

Deduplication System Capacity

You can view specific details about the system capacity using deduplication.
Select System Capacity from the navigation tree or from the task bar of the Deduplication Summary
screen.
The screen displays the following information:
• Total physical capacity — the capacity of the entire VLS system
• Reserved for system — the amount of capacity needed to perform system functions (for example,
storing the meta-data)
• Usable capacity — the total capacity that can be used for deduplication (Total Physical Capacity
minus Reserved for System)
• Used capacity — the capacity currently in use
• Available capacity — the capacity currently available (Usable Capacity minus Used Capacity)
• Logical Data — the amount of backup data sent to the VLS (before deduplication and compression)
• Used Capacity — the capacity currently in use
• System Ratio — the ratio of the Logical Data divided by the Used Capacity
• Space Savings — the percentage of capacity saved by deduplication
HP StorageWorks 12000 Gateway Virtual Library System User Guide 97