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Figure 51 Example of How to Figure Out the Volume Capacity (In the Case of OPEN-3)

Capacity

List for Each Emulation Type

This sect

ion explains the LDEV capacity and volume capacity for each emulation type in the units of

blocks and cylinders.

In this section, the numbers of cylinders are calculated from the following formulas.

For3380mainframe volumes: 1cylinder=1,440blocks

For 3390

mainframe volumes: 1 cylinder = 1,740 blocks

The minimum data area capacity, the base data area capacity, and control information area capacity

for each emulation type are listed in the Table 39 on page 130. For the OPEN-L emulation type, CVs

cannot be created. Therefore, the base data area capacity and minimum data area capacity for OPEN-L

emulati

on type are the same. For the OPEN-V emulation type, the base data area capacity is not listed

because there is no concept of the base data area capacity.

The base LDEV capacity, the minimum LDEV capacity, the maximum external volume capacity, and the

number

of LDEVs that can be deﬁned for the external volume with maximum capacity are listed in the

Table 40 on page 131. For the OPEN-L emulation type, the base LDEV capacity and the minimum LDEV

capacity are the same, because CVs cannot be created. For the OPEN-V emulation type, the base LDEV

capaci

ty is not listed because there is no concept of the base LDEV capacity.

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Hp XP External Storage Software Manual do Utilizador Página 129