Hitachi TrueCopy for IBM z/OS User and Reference Guide (T5211-96001, June 2007)

A-2 Using PPRC Commands for TrueCopy for z/OS
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
Overview of PPRC Commands
The USP V supports IBM Peer-to-Peer Remote Copy (PPRC) TSO and ICKDSF
commands to enable you to perform TrueCopy for z/OS 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 TCz pair. PPRCOPY ICKDSF
commands are issued from JCL job cards. The TCz feature must be installed on
the USP V, and IBM PPRC must be installed on the host operating system. For
TCzA operations, special switches and parameters are used to control and
monitor TCzA pairs and groups using PPRC commands.
The following TCz operations cannot be performed using PPRC commands:
async options, and TCzA group addition/deletion. The async options and
groups must be configured using the Storage Navigator computer before you
can add any TCzA 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 (refer to
Table 2-2). If system option mode 114 is OFF, you must configure the ports
using the licensed TCz software on the Storage Navigator 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.
Table A-1 lists the TCz operations and describes the corresponding PPRC TSO
and ICKDSF commands.
Note: For fibre-channel interface, do not use the CESTPATH and CDELPATH
commands at the same time as the SCSI path definition function of LUN
Manager. The fibre-channel interface ports need to be configured as initiator
ports or RCU target ports before the CESTPATH and CDELPATH commands are
issued.
Note: PPRC TSO command parameter support depends on the CU emulation
(3990, 2105, or 2107). PPRC command extensions are supported when
running with 2105 or 2107 emulation.
Note: The PPRC TSO and ICKDSF commands have required and optional
parameters which are not described in detail in this document. For further
information on using PPRC TSO and PPRCOPY ICKDSF commands, refer to IBM
publications Advanced Copy Services (SC35-0355), DFSMS MVS V1 Remote
Copy Guide and Reference (SC35-0169), and ICKDSF R16 Refresh User’s
Guide (GC35-0033).