Configurations With Business Copy Secondary Volumes; Pair Status And Data Currency - HP XP P9500 User Manual

Figure 27 Shared Continuous Access Journal primary volume and secondary volume with
Business Copy primary volumes

Configurations with Business Copy secondary volumes

The following figure shows a Business Copy primary volume used as the production volume. A
remote Continuous Access Journal backup copy is made of the Business Copy secondary volume.
The Business Copy pair must be in PSUS status (Split) to perform the Continuous Access Journal
operation.
Figure 28 Shared Continuous Access Journal secondary volume with Business Copy primary volume

Pair status and data currency

The table below shows whether the data in a shared volume is current, given the combined status.
Table 25 Data currency of a shared volume
Continuous Access
Journal pair status
COPY
PAIR
PSUS/PSUE
Check pair status for shared volumes as follows:
For Continuous Access Journal, check status of the primary volume or secondary volume.
For Business Copy, check status of the primary volume.
Business Copy supports multiple secondary volumes for each primary volume. When you check
pair status, the system returns status for only one pair—the pair whose secondary volume has the
Business Copy pair status
COPY (PD) PAIR
Not Current Not Current
Not Current Not Current
Not Current Current
COPY (SP) PSUS
Not Current Current
Not Current Current
Current Current
Configurations with Business Copy secondary volumes 145
COPY PSUE
(RS/RS-R)
Not Current Not Current
Not Current Not Current
Current Not Current