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3-10 Chapter 3 Preparing for Universal Replicator z/OS Operations
Hitachi Universal Replicator for IBM /OS User’s Guide
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.
Note: If the calculated maximum number of pairs exceeds 32,768, the
actual maximum number of pairs is limited to 32,768.
Table 3-8 illustrates the maximum number of pairs according to each
emulation type, when pairs are created without use of VLL volume.
Table 3-8 Maximum Number of Pairs According to Each Emulation Type,
when pairs are created without use of VLL volume
Emulation
Type
Maximum
number of pairs
Additional
shared memory
for URz is
installed
Extension 1 Extension 2 Extension 3 Extension 4
3380-J 7,420 16,384 28,673 32,768 32,768
3380-E 7,420 16,384 28,673 32,768 32,768
3380-K 7,420 16,384 28,673 32,768 32,768
3390-1 7,420 16,384 28,673 32,768 32,768
3390-2 7,420 16,384 28,673 32,768 32,768
3390-3
3390-3R
7,420 16,384 28,673 32,768 32,768
3390-9 3,710 8,192 14,336 20,071 28,672
3390-L 1,484 3,277 5,734 8,028 11,469
3390-M 1,484 3,277 5,734 8,028 11,469
H6586-G 7,420 16,384 28,673 32,768 32,768
H6586-J 7,420 16,384 28,673 32,768 32,768
H6586-K 7,420 16,384 28,673 32,768 32,768
H6588-1 7,420 16,384 28,673 32,768 32,768
H6588-3 7,420 16,384 28,673 32,768 32,768
H6588-9 3,710 8,192 14,336 20,071 28,672
H6588-L 1,484 3,277 5,734 8,028 11,469
NF80-E 7,420 16,384 28,673 32,768 32,768
NF80-J 7,420 16,384 28,673 32,768 32,768
NF80-K 7,420 16,384 28,673 32,768 32,768
Caution: The bitmap areas that are used for URz are also used for TrueCopy for
z/OS. If you use both TrueCopy for z/OS and URz, use the total number of
both pairs.