HP StorageWorks XP Remote Web Console Software - Manual (Page 60)

Table 15 Number of Cylinders According to Each Emulation Type
Emulation type Number of Cylinders
3380-J 885
3380-E 1,770
3380-K 2,655
3390-1 1,113
3390-2 2,226
3390-3
3390-3R 3,339
3390-9 10,017
3390-L 32,760
3390-M 65,520
H6586-G 1,770
H6586-J 885
H6586-K 2,655
H6588-1 1,113
H6588-3 3,436
H6588-9 10,017
H6588-L 32,760
NF80-E 1,770
NF80-J 885
NF80-K 2,655
• The number of the required bitmap areas:
The number of bitmap areas to be used by all data volumes that form pairs is calculated out of the
number of cylinders. The calculated number of bitmap areas is referred to as "the required number of
bitmap areas" in the following formula. Use the following formula to calculate the required number of
bitmap areas for a data volume. The ↑…↑ symbols enclosing a value indicate that the enclosed value
should be rounded up to the nearest integer.
The required number of bitmap areas = (↑((number of cylinders Ч 15) ч 122,752) ↑)
• ” number of cylinders × 15” indicates the number of slots
• 122,752 is the number of slots that a bitmap area can manage
If the calculated required number of bitmap areas exceeds the total number of bitmap areas in the
storage system, the number of pairs that can be created will be limited.
• The maximum number of pairs that can be created:
The maximum possible number of pairs that can be created depends on the number of bitmap areas
of the storage system and the required number of bitmap areas required to create pairs.
The number of bitmap areas of the storage system depends on the capacity of shared memory.
The relationship between the area number of shared memory and the number of bitmap areas
in the storage system.
60 Preparing for Universal Replicator z/OS Operations