Calculating licensed capacity for a normal volume

System Administrator Guide for VSP 5000 Series

Version

90-09-2x

Audience

anonymous

Part Number

MK-98RD9009-16

A normal volume is a volume that is not blocked or protected. The volume can be written to. The calculation of the normal volume capacity depends on the volume emulation type. Use the formula in the following table to estimate capacity for purchase. When you calculate the volume capacity, round the value up to the second decimal place.For OPEN-V volumes, the licensed capacity of a volume is the same as the capacity specified when creating the volume.

Table. 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: `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. 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