HP StorageWorks 12000, User Manual

Page: 97 / 266

Deduplication Cartridge Report
The cartridge report provides information on the deduplication of your backup jobs at the cartridge
level.
1. Select Cartridge Report from the navigation pane or from the task bar of the Deduplication
Summary screen.
The cartridge report options display.
2. Select View corresponding to the report you want to view. You can view all cartridges, or view
a specific barcode prefix or virtual library.
The screen displays the list of cartridges meeting the set criteria.
3. From the results list, select a cartridge to see all of the backup jobs on that cartridge.
The report includes the following information:
• Library
• Barcode
• Logical Size — the size of the backup data sent to the VLS (before deduplication and com-
pression)
• Physical Size — the disk space currently used to store the compressed backup, which varies
over time as deduplication processes the backup and reclaims redundant disk space
• Dedupe Ratio Estimate — the estimated deduplication ratio (based on the Logical Size divided
by Physical Size)
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 pane 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
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