HP XP Business Copy Software User Manual
Page 19
Differen-
tial
tables
Capacity
1
Differen-
tial
tables
Capacity
1
Differen-
tial
tables
Capacity
1
182
Up to 2,724.3GB
149
Up to 2,230.3GB
116
Up to 1,736.3GB
183
Up to 2,739.2GB
150
Up to 2,245.3GB
117
Up to 1,751.3GB
184
Up to 2,754.2GB
151
Up to 2,260.2GB
118
Up to 1,766.3GB
185
Up to 2,769.2GB
152
Up to 2,275.2GB
119
Up to 1,781.2GB
186
Up to 2,784.1GB
153
Up to 2,290.2GB
120
Up to 1,796.2GB
187
Up to 2,799.1GB
154
Up to 2,305.1GB
121
Up to 1,811.2GB
188
Up to 2,814.1GB
155
Up to 2,320.1GB
122
Up to 1,826.1GB
189
Up to 2,829.0GB
156
Up to 2,335.1GB
123
Up to 1,841.1GB
190
Up to 2,844.0GB
157
Up to 2,350.0GB
124
Up to 1,856.1GB
191
Up to 2,859.0GB
158
Up to 2,365.0GB
125
Up to 1,871.0GB
192
Up to 2,873.9GB
159
Up to 2,380.0GB
126
Up to 1,886.0GB
193
Up to 2,880.0GB
160
Up to 2,394.9GB
127
Up to 1,901.0GB
161
Up to 2,409.9GB
128
Up to 1,915.9GB
162
Up to 2,424.9GB
129
Up to 1,930.9GB
1
1 GB = 1024
3
Bytes
If you intend to create pairs with volumes of different emulation types, the maximum number of pairs
you can create depends on the following conditions.
NOTE:
For more information about calculating total number of differential tables per pair, see
.
Calculating the number of BC pairs if LUSE is not used
Use the following equation to calculate whether the desired number of BC pairs can be created:
{( ) x (number of BC Pairs)}
( ), where:
•
( ) is the required number of differential tables per pair (see
).
•
(number of BC pairs) is the number of BC pairs you want to create.
•
( ) is number of differential tables in the disk array.
• ( ) = 13,652 when additional shared memory for differential tables is not installed.
• ( ) = 30,718 when additional shared memory for differential tables is installed.
For example, if you create 10 pairs of OPEN-3 volumes and 20 pairs of OPEN-V volumes in a disk
array that does not have additional shared memory for differential tables, use the following equation:
1 x 10 + 193 x 20 = 3870
13,652
XP Business Copy User Guide
19