Calculating licensed capacity for a normal volume, Calculating pool capacity – HP XP RAID Manager Software User Manual

Page 60

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Table 19 Program products and licensed capacity (continued)

Notes

Licensed capacity

Option name

Used capacity for
external volumes

External Storage

Unlimited

High Performance FICON Connectivity

Unlimited

Resource Partition

1

If you use V-VOLs of Thin Provisioning as P-VOLs or S-VOLs of Business Copy/Continuous Access Synchronous/Continuous
Access Journal, the license capacity of Business Copy/Continuous Access Synchronous/Continuous Access Journal is
calculated using the page capacity allocated to the Thin Provisioning V-VOLs (i.e., used pool capacity).

Calculating licensed capacity for a normal volume

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.

Table 20 Methods for calculating capacity of a normal volume

Formula for calculating capacity of a normal volume

Volume emulation type

720 KB X (number of user cylinders)

3380-x

870 KB X (number of user cylinders)

3390-x

Same as the capacity specified when creating the volume

OPEN-x

Note: In the left column of this table, "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 provided in the following table.

Table 21 Example of estimating capacity for purchase

Value

Item

3390-3

Volume emulation type

3,339

Number of user cylinders

2,048

Number of volumes

870 KB X 3,339 X 2,048 = 5,949,296,640 KB

Total capacity of all the volumes

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 = 5.54 TB

At lease 6 TB

Estimated capacity for purchase

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 Thin Provisioning is calculated using the total capacity of the Thin Provisioning
pool. If you use Thin Provisioning V-VOLs as P-VOLs or S-VOLs of Business Copy/Continuous Access
Synchronous/Continuous Access Journal, the license capacity of Business Copy/Continuous Access
Synchronous/Continuous Access Journal is calculated using the page capacity allocated to the
Thin Provisioning V-VOLs (that is, used pool capacity).

For more information on calculating pool capacity, see the HP P9000 Provisioning for Open
Systems User Guide
.

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