Hp XP Continuous Access Software Uživatelský manuál Strana 51

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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 specications.
Continuous Access XP Journal user guide
51
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