HP StorageWorks XP Remote Web Console Software - Manual (Page 191)

Table 57 TrueCopy for Mainframe Operations versus PPRC TSO and ICKDSF Commands (continued)
Description Command
Issued to:
ICKDSF Command TSO Command TrueCopy for
Mainframe
Operation
from the M-VOL to the
R-VOL.
Supported by TrueCopy for
Mainframe Synchronous. MCU (M-VOL or
simplex) — CGROUP
(FREEZE/RUN) —
Command is rejected by
TrueCopy for Mainframe
Asynchronous pairs.
•
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.
•
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.
•
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, see IBM publications Advanced Copy Services (SC35-0355), DFSMS
MVS V1 Remote Copy Guide and Reference (SC35-0169), ICKDSF R16 Refresh User's Guide
(GC35-0033), and other IBM documents on ICKDSF R16 or later.
•
The PPRC TSO and ICKDSF commands use slightly different command/keyword names to
provide equivalent PPRC functions. For example, the CESTPAIR TSO command is equivalent
to the PPRCOPY ESTPAIR ICKDSF command. This document describes the PPRC TSO commands.
See the IBM PPRC and ICKDSF documentation for complete information on using PPRCOPY
ICKDSF instead of PPRC TSO commands.
•
When the CESTPATH command is executed, the following processing is performed.
The path that is used before the CESTPATH command is executed but that is not specified
in the CESTPATH command is deleted. 1.
2. The path that is used before the CESTPATH command is executed and specified again
in the CESTPATH command is maintained.
3. The path that is not used before the CESTPATH command is executed but that is specified
in the CESTPATH command is added.
If you specify to delete all paths that are used before the CESTPATH command is executed,
the pair operation might be suspended because the path does not exist temporarily in the
processing described above.
•
The CESTPATH RESETHP option rejects the host I/O operations. Before you use the RESETHP
option of the CESTPATH command, stop the I/O operations from the host.
•
The 'lss' parameter of the PPRC command depends on the CU emulation type. Set the 'lss'
parameters as follows:
◦ If the package connected to the host is 2105 or 2107 CU emulation type, set the 'lss'
parameter for both the MCU and RCU.
◦ If the package connected to the host is 3990 CU emulation type, do not set 'lss' parameter
for MCU or RCU.
2105 or 2107 CU Emulation Type of MCU: When the CU emulation type of MCU is 2105 or 2107,
and a host system is online to R-VOL, even if you want to create a TC-MF pair by using the CESTPAIR
command, the CESTPAIR command is rejected. If you use the ONLINSEC(YES), you can create a
TC-MF pair even though a host system is online to R-VOL. If you do not use the ONLINSEC (default),
or if you use the ONLINSEC(NO), you cannot create a TC-MF pair. If RCU does not support the
2105 or 2107 CU emulation type, you cannot check whether a host system is online or not. In
Overview of PPRC Commands 191