Options not supported by pprc, Requirements, restrictions, and notes – HP XP7 Storage User Manual
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Description
Issued to:
PPRC Commands
1
TSO
2
ICKDSF
3
RWC operation
Resynchronizes a pair, and sets the initial copy options
and pair options. Cnt Ac-S Z supports the optional
MODE, PACE, and CRIT parameters.
P-VOL
PPRCOPY
ESTPAIR
CESTPAIR(MODE=RESYNC)
Resume Pair
Supported by Cnt Ac-S Z. Redirects application I/Os
from the P-VOL to the S-VOL.
MCU and
RCU
—
P/DAS SWAP
—
Supported by Cnt Ac-S Z.
MCU (P-VOL
or simplex)
—
CGROUP
(FREEZE/ RUN)
—
Notes
1.
Parameters and format for PPRC commands are not described in this document. For full information, see the IBM publications
Advanced Copy Services (SC35 0355), DFSMS MVS V1 Remote Copy Guide and Reference (SC35 0169), ICKDSF User’s
Guide and Reference (GC35 0033), and other IBM documents on ICKDSF R16 or later.
2.
PPRC TSO commands are issued from the system console to the P-VOL or S-VOL.
3.
PPRCOPY ICKDSF commands are issued from JCL job cards.
4.
Port configuration using CESTPATH and CDELPATH requires system option mode 114 set to ON. If 114 is OFF, you must
configure the ports using Remote Web Console before adding paths or after deleting paths.
Note that even with 114 set to ON, if the ports are in initiator/external mix mode, initiator ports do not automatically change
to RCU target ports, and RCU target ports do not automatically change to initiator ports. See
for more information.
Options not supported by PPRC
You cannot change the following Cnt Ac-S Z options using PPRC commands:
•
RCU options
•
Initial copy priority option
•
DFW to S-VOL pair options
Requirements, restrictions, and notes
Note the following when using PPRC commands:
•
Cnt Ac-S Z must be installed on the XP7.
•
IBM PPRC must be installed on the host operating system.
•
With CU emulation type I-2107, the lss parameter must be set for both the MCU and RCU.
•
Command extensions are supported with I-2107 emulation.
•
The TSO CESTPATH and PPRCOPY ESTPATH commands remove paths previously established
and replace them with the paths you specify. Make sure to specify existing paths that you
want to continue using, or specify new paths.
If you delete all paths prior to running the command—because you want to specify new paths
with the command, the pair operation might suspend because no path exists temporarily.
•
With Fibre Channel, do not use the CESTPATH and CDELPATH commands at the same time
that you use the SCSI path definition function of LUN Manager. FC ports need to be configured
as initiator ports or RCU target ports before the CESTPATH and CDELPATH commands are
issued.
•
The RESETHP option used with the CESTPATH command causes host I/O operations to be
rejected. Before you use the RESETHP option, stop I/O operations from the host.
•
PPRC commands may be rejected if you have registered 0xFFXX to the MCU and RCU SSID.
Specify the command excepting 0xFFXX. (Note: the ‘XX’ of 0xFFXX is given in hexadecimal.)
•
When you issue the QUERY command with the PATH option to the S-VOL using ICKDSF, the
command might be rejected. If this happens, you can check path status using the CQUERY
command or Remote Web Console.
Requirements, restrictions, and notes
119