VLS9200 user guide (BW402-10009, August 2012)

Table 15 System Capacity Table
Total physical storage capacity purchased and installed
on the system. This is the sum of all LUN capacity in the
pool, minus the space reserved for formatting overhead.
Total Physical Capacity
The space required for system overhead and metadata.
Storage Pool 1 or the FireSafe can have more space
Reserved for System
reserved than other storage pools due to Deduplication
metadata that can be up to 2 TB.
The physical storage capacity available for user data. This
is the total Physical Capacity less the space reserved for
the system.
Usable Capacity
The size of all backup data currently retained and visible
to the backup application.
Logical Data
The physical storage used for data whether or not it is
deduplicated.
Used Capacity
The physical storage currently available for additional
backup data. This is the total Usable Capacity less the
Used Capacity.
Available Capacity
The ratio of Logical Data to Used Capacity.Ratio
Storage Pool View
To navigate to the Storage Pools link:
• On the navigation tree, select System > Chassis > Capacity > Storage Pools.
The Storage Allocation by Pool screen displays the statistical graph that depicts all the storage
pools in your VLS. The graph also displays the total capacity of each storage pool.
Figure 19 Storage Allocation by Pool Screen
The Storage Pool Capacity table lists the following capacity values:
Table 16 Storage Pool Capacity Table
The name of the storage pool. This is a link to display
information about the storage pool.Storage Pool
Total physical storage capacity purchased and installed
on the system. This is the sum of all LUN capacity in the
pool, minus the space reserved for formatting overhead.
Total Physical Capacity
Monitoring Storage Capacity 139