HP StorageWorks XP Remote Web Console Software - Manual (Page 61)

Table 16 The Relationship between Additional Shared Memory and Total Number
of Bitmap Areas of Storage System
Additional Shared Memory for URz Total Number of Bitmap Ar
Storage System
eas of
No additional shared memory for URz 0
Additional shared memory for URz is
installed
7,424
Extension 1 16,384
Extension 2 32,768
Extension 3 44,256
Extension 4 65,536
Use the following formulae to calculate the maximum possible number of pairs that can be created,
based on the number of bitmap areas described in Table 16 on page 61 and the required number of
bitmap areas you calculated:
The maximum number of pairs = ( ↓ Number of bitmap areas ÷ required number of bitmap areas ↓ )
The ↓…↓ symbols enclosing a value indicate that the value should be rounded down to the nearest
integer.
If the calculated maximum number of pairs exceeds 32,768, the actual maximum number of pairs
is limited to 32,768.
Table 17 on page 62 illustrates the maximum number of pairs according to each emulation type, when
pairs are created without use of VLL volume.
Hitachi Universal Replicator for z/OS user guide for XP12000/XP10000 Disk Arrays and SVS 200 61