HP 3PAR Operating System Software - Manual (Page 138)

Figure 46 Transition States
As the secondary path becomes activated, the following actions occur (see Figure 47 (page 138) ):
1. The target remote-copy group changes state to become “primary-reversed.”
2. At this point the primary-reversed volume becomes read/write.
3. The primary-reversed target port group state is changed to active.
4. The primary-reversed array returns a failover-complete message to the primary array.
Figure 47 Secondary Path Activates
To start I/O service, the following actions occur (see Figure 48 (page 139) ):
138 HP 3PAR Peer Persistence with Transparent Failover