HP StorageWorks XP Remote Web Console Software User Manual
Page 55
Table 17 Relationship between Additional Shared Memory and Total Number of Bitmap Areas
of the Storage System
Total Number of Bitmap Areas of Storage
System
Additional Shared Memory for Universal
Replicator for Mainframe
0
No additional shared memory for Universal
Replicator for Mainframe
7,424
Additional shared memory for Universal
Replicator for Mainframe is installed
16,384
Extension 1
32,768
Extension 2
44,256
Extension 3 (available only for an XP24000
Disk Array)
65,536
Extension 4 (available only for an XP24000
Disk Array)
Use the following formula to calculate the maximum possible number of pairs that can be
created, based on the number of bitmap areas described in
and the
required number of bitmap areas you calculated:
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.
illustrates the maximum number of pairs according to each emulation type,
when pairs are created without the use of a VLL volume.
Table 18 Maximum Number of Pairs According to Each Emulation Type, When Pairs Are Created
Without the Use of a VLL Volume
Maximum number of pairs
Emulation Type
Extension 4
Extension 3
Extension 2
Extension 1
Additional
shared
memory for
Universal
Replicator for
Mainframe is
installed
32,768
32,768
32,768
16,384
7,424
3380-J
32,768
32,768
32,768
16,384
7,424
3380-E
32,768
32,768
32,768
16,384
7,424
3380-K
32,768
32,768
32,768
16,384
7,424
3390-1
32,768
32,768
32,768
16,384
7,424
3390-2
32,768
32,768
32,768
16,384
7,424
3390-3
3390-3R
32,768
22,128
16,384
8,192
3,712
3390-9
13,107
8,851
6,553
3,276
1,484
3390-L
Requirements and Restrictions for Universal Replicator for Mainframe
55