HP StorageWorks XP Remote Web Console Software - Manual (Page 188)

A Using PPRC Commands for TrueCopy for Mainframe
This appendix describes how to use PPRC commands to perform TrueCopy for Mainframe operations.
•
“Overview of PPRC Commands” (page 188)
•
“Using PPRC TSO Commands with TrueCopy for Mainframe Asynchronous” (page 192)
•
“CGROUP (FREEZE/RUN) Support” (page 206)
•
“IEA494I and IEA491E Console Messages” (page 212)
•
“XP Disk Array Response Characteristics to Failure Conditions” (page 213)
Overview of PPRC Commands
The HP disk array supports IBM Peer-to-Peer Remote Copy (PPRC) TSO and ICKDSF commands to
enable you to perform TrueCopy for Mainframe operations from the zSeries and S/390 host
system. PPRC TSO commands are issued from the system console to the M-VOL or R-VOL of a
TrueCopy for Mainframe pair. PPRCOPY ICKDSF commands are issued from JCL job cards. The
TrueCopy for Mainframe feature must be installed on the XP disk array, and IBM PPRC must be
installed on the host operating system. For TrueCopy for Mainframe Asynchronous operations,
special switches and parameters are used to control and monitor TrueCopy for Mainframe
Asynchronous pairs and groups using PPRC commands.
The following TrueCopy for Mainframe operations cannot be performed using PPRC commands:
async options, and TrueCopy for Mainframe Asynchronous group addition/deletion. The async
options and groups must be configured using the Remote Web Console computer before you can
add any TrueCopy for Mainframe Asynchronous pairs (CESTPAIR). You also cannot change the
RCU options, initial copy priority, or the DFW to R-VOL pair options using PPRC commands.
Port configuration (RCU target
initiator) is supported via the CESTPATH and CDELPATH TSO
commands only when system option mode 114 ON (see “XP Disk Array Modes for TrueCopy for
Mainframe” (page 12) ). If system option mode 114 is OFF, you must configure the ports using the
licensed TrueCopy for Mainframe software on the Remote Web Console computer before adding
paths and after deleting paths.
Even if you set ON for system option mode 114, initiator ports will not automatically change to
RCU target ports, nor vice versa, when these ports are in initiator/external mix mode.
“TrueCopy for Mainframe Operations versus PPRC TSO and ICKDSF Commands” (page 188) lists
the TrueCopy for Mainframe operations and describes the corresponding PPRC TSO and ICKDSF
commands.
Table 57 TrueCopy for Mainframe Operations versus PPRC TSO and ICKDSF Commands
Description Command ICKDSF Command TSO Command TrueCopy for
Issued to: Mainframe
Operation
If system option mode 114
is OFF, the ports must be — — Configure Port (RCU
target to initiator)
configured using the TC-MF
software. If system option
mode 114 is ON, the ports
are configured
automatically (RCU
target/initiator to
initiator/RCU target) in
response to the CESTPATH
and CDELPATH TSO
commands. However, even
if you set ON for system
option mode 114, initiator
ports will not automatically
188 Using PPRC Commands for TrueCopy for Mainframe