HP StorageWorks XP Remote Web Console Software - Manual (Page 26)

Figure 6 Delta Resync Setting in 3DC Multi-target Configuration (Before Failure Occurs)
As shown in Figure 6 (page 26) a URz pair created with the delta resync option is defined as a
pair but no copy operation is performed (Hold status). Actual copy operation will not be performed
until when the failure occurs and delta resync operation is performed. There are several requirements
to create a URz pair for delta resync operation, such as you need to specify the unused mirror ID.
For detailed information about the requirements of creating a URz pair for delta resync operation,
see
“Requirements for Creating URz Pair for Delta Resync Operation” (page 81) .
For the information about the delta resync operation that will be performed when a failure occurs
in the configuration shown in
Figure 6 (page 26) see Switching the Master Journal Group of URz .
26 Overview of Universal Replicator for Mainframe Operations