Hp XP Continuous Access Software Manual do Utilizador descarregar pdf (Página 51)

NOTE:

If you use LUSE volumes, you must add 1 to the value calculated by the above formula.

• Maximum number of pairs that can be created:

Use the following formulas to calculate the maximum number of pairs you can create:

• When one pair of extended shared cache memories is used

Maximum number of pairs = ( ↓ (11,605 /Number of bitmap areas) ↓ )

The ↓…↓ symbols around a value indicate the value should be rounded down to the nearest

integer.

• When two pairs of extended shared cache memories are used

Maximum number of pairs = ( ↓ (28,671 /Number of bitmap areas) ↓ )

The ↓…↓ symbols around a value indicate the value should be rounded down to the nearest

integer.

NOTE:

If the calculated maximum number of pairs exceeds 16,384, the actual maximum number of

pairsislimitedto16,384.

NOTE:

The capacit

y of OPEN-V is variable. To calculate the maximum number of pairs for OPEN-V,

use the formula.

CAUTION:

BitmapareasusedforContinuousAccessXPJournalarealsousedforContinuousAccessXP.

If you use Continuous Access XP and Continuous Access XP Journal, use the total number of

both pairs.

Journal gr

oups

Continuou

s Access XP Journal journal groups have the following requirements:

• Each Continuous Access XP Journal pair must be assigned to one and only one journal group.

•Table14lists journal group speciﬁcations.

Continuous Access XP Journal user guide

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Hp XP Continuous Access Software Manual do Utilizador Página 51