HP XP LUN Configuration and Security Manager Software User Manual

Page 44

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44

Volume Management for the XP10000/XP12000

• The user-specified CV capacity is expressed in megabytes.

To calculate the entire capacity of a CV, use the following formula. The resulting entire capacity is

expressed in megabytes:

↑

user-area-capacity ÷ boundary-value ↑ × boundary-value ÷ 1024

NOTE:

• Round up the value enclosed by two up arrows (↑) to the nearest whole number.
• The user area capacity is expressed in kilobytes.
• The boundary value is expressed in kilobytes. The boundary value depends on volume

emulation types and RAID levels (see

Table 19

on page 46).

•

If the unit for CV capacity is cylinders (Cyl):
To calculate the user area capacity of a CV, use the following formula. The resulting user area capacity

is expressed in kilobytes.

user-specified-CV-capacity Ч 64 Ч 15

NOTE:

The user-specified CV capacity is expressed in cylinders.

To calculate the entire capacity of a CV, use the following formula. The resulting entire capacity is

expressed in megabytes.

↑

user-area-capacity ÷ boundary-value ↑ × boundary-value ÷ 1024

NOTE:

• Round up the value enclosed by two up arrows (↑) to the nearest whole number.
• The user area capacity is expressed in kilobytes.
• The boundary value is expressed in kilobytes. The boundary value depends on volume

emulation types and RAID levels (see

Table 19

on page 46).

•

If the unit for CV capacity is “block”:
To calculate the user area capacity of a CV, use the following formula. The resulting user area capacity

is expressed in kilobytes.

user-specified-CV-capacity ÷ 2

NOTE:

The user-specified CV capacity is expressed in blocks.

To calculate the entire capacity of a CV, use the following formula. The resulting entire capacity is

expressed in blocks. To convert the resulting entire capacity into megabytes, divide this capacity by

2,048.

↑

user-specified-CV-capacity ÷ (boundary-value Ч 2) ↑ Ч (boundary-value × 2)

NOTE:

• Round up the value enclosed by two up arrows (↑) to the nearest whole number.
• The user-specified CV capacity is expressed in blocks.
• The boundary value is expressed in kilobytes. The boundary value depends on volume

emulation types and RAID levels (see

Table 19

on page 46).

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