HP XP P9500 Software User's Manual page 56

Table 8 FlashCopy command options
Command
DFSMSdss COPY command
TSO/E FCESTABL command
Business Continuity Manager conditions
The following table describes the conditions for copy pairs (the copy type, differential-data
management unit, and copy pair status when linked with Compatible FlashCopy) that can be
linked with Compatible FlashCopy.
Table 9 Copy pair conditions for Compatible FlashCopy linkage
Copy type
Continuous
Access
Synchronous
Continuous
Access
Asynchronous
Continuous
Access
Journal
1
The differential-data management unit is specified in DIF UNIT in the Copy Group Attributes panel. For details about
the differential-data management unit, see the explanation of the Copy Group Attributes panel in the HP P9000
for Business Continuity Manager Software Reference Guide.
2
Copy groups with consistency group IDs are not supported.
3
A 3DC Multi-Target configuration cannot be linked with Compatible FlashCopy when both the Continuous Access
Synchronous and Continuous Access Journal copy pairs are in the DUPLEX status. To link a 3DC Multi-Target
configuration with Compatible FlashCopy, suspend either the Continuous Access Synchronous or Continuous Access
Journal copy pair.
4
Depending on the storage system model and whether the Continuous Access Synchronous Consistency Preservation
Function is used, Compatible FlashCopy linkage might not be possible in the DUPLEX status. For details, see the
manual for your storage system.
Using the Remote DKC Control Function to obtain the copy status is not supported.
When Continuous Access Journal is linked with Compatible FlashCopy, the following functions
might not operate correctly because the timestamp information assigned to the I/O is not
inherited:
Consistency Preservation Function in a 4x4 configuration
◦
◦ CAJ ATTIME suspend function
56 Business Continuity Manager with replication products
Necessary option
When the Preserve Mirror function is not
used
FCTOPPRCPRIMARY
TGTPPRIM(YES)
Differential-data
1
management unit
CYL
TRK
CYL
TRK
Cannot be set
When the Preserve Mirror function is used
FCTOPPRCPRIMARY (PRESMIRNONE|
PRESMIRPREF| PRESMIRREQ)
◦ TGTPPRIM(YES)
◦ PRESERVEMIRROR
Copy pair status when linked with Compatible FlashCopy
Suspend status
Either of the following:
2, 3, 4
◦ DUPLEX status
◦ Suspend status
When using the Preserve Mirror function, however, the copy pair must
be in the DUPLEX status.
Suspend status
Suspend status
Either of the following:
3
◦ DUPLEX status
◦ Suspend status