HP XP7 Storage - Manual (Page 39)

Example 1: more initial copies than previously specified
In this example, four initial copies are being created in the same operation, but Maximum Initial
Copy Activities is set at 2. In this scenario, the Priority field in the Create Pairs window would be
set as shown in the following table.
Value set for Priority P-VOL
2 LDEV 00
3 LDEV 01
1 LDEV 02
4 LDEV 03
The order for the initial copy and the Priority for the P-VOLs are shown in the following table.
Value set for Priority P-VOL Order for initial copy
1 LDEV 02 1
2 LDEV 00 2
3 LDEV 01 3
4 LDEV 03 4
In this case, because the value of Maximum Initial Copy Activities is 2, initial copy operations for
LDEV 02 and LDEV 00 are started. If either one of the initial copy operations for LDEV 02 and
LDEV 00 is completed, the initial copy for LDEV 01 is started.
Example 2: initial copy started, new pairs added
The following table shows the Priority value when the initial copy is already begun and then two
new pairs are added. The P-VOLs are for the new pairs
Value set for Priority P-VOL
2 LDEV 10
1 LDEV 11
If initial copy is already started, and if a new initial copy is added, the additional initial copy is
started after the previously performed initial copy is completed. The priority of all the initial copy
operations being performed is shown in the following table.
Remarks Value set for Priority P-VOL Starting order for initial
copy
Previously scheduled. 1 LEDV 02 1
Previously scheduled. 2 LDEV 00 2
Previously scheduled. 3 LDEV 01 3
Previously scheduled. 4 LDEV 03 4
Scheduled later. 1 LDEV 11 5
Scheduled later. 2 LDEV 10 6
Planning pairs and pair volumes 39