Table 12 Formulas for calculating capacity of a normal volume
Volume emulation type
Formula for calculating capacity of a normal volume
3390-
x
1
870 KB ×
number-of-user-cylinders
OPEN-
x
1
Same as the capacity
specified
when creating the
volume
Notes:
1.
x
indicates a number or a letter. For example, OPEN-
x
refers to emulation types
such as OPEN-3 and OPEN-V.
An example is shown in the following table.
Table 13 Example of calculating license capacity
Item
Value
Volume emulation type
3390-3
Number of user cylinders
3,339
Number of volumes
2,048
Total capacity of all the
volumes
870 KB × 3,339 × 2,048 = 5,949,296,640 KB
5,949,296,640 KB / 1,024 = 5,809,860 MB
5,809,860 MB / 1,024 5,673.70 GB
5,673.70 GB / 1,024 5.55 TB
Estimated required capacity At least 6 TB
Calculating licensed capacity for an external volume
Use the following equation to calculate the licensed capacity for an external volume:
External Volume Capacity (KB) = Volume Capacity (number of blocks) X
512 (bytes) / 1,024
Calculating pool capacity
The license capacity of Dynamic Provisioning is calculated using the total capacity of the
Dynamic Provisioning pool. If you use Dynamic Provisioning V-VOLs as P-VOLs or S-VOLs
of ShadowImage, TrueCopy, Universal Replicator, or global-active device, the license
capacity of ShadowImage, TrueCopy, Universal Replicator, or global-active device is
calculated by using the page capacity allocated to the Dynamic Provisioning V-VOLs (that
is, used pool capacity).
For more information on calculating pool capacity, see the
Provisioning Guide
.
Calculating licensed capacity for an external volume
Chapter 7: Managing license keys
System Administrator Guide for VSP Gx00 models and VSP Fx00 models
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