Hitachi TrueCopy for IBM z/OS User and Reference Guide (T5211-96001, June 2007)
Using PPRC Commands for TrueCopy for z/OS A-47
Hitachi Universal Storage Platform V TrueCopy for IBM z/OS User’s Guide
GDPS-TCz Matrix
Table A-14 shows the functional comparison between IBM 3990-6E, USP V,
and TagmaStore USP/NSC about the function of GDPS support and PPRC.
Note: The information shown in Table A-14 was current at the time of
publication of this document but is expected to change over time. Please
contact your Hitachi account team for the latest GDPS-TCz matrix information.
Table A-14 GDPS-TCz Matrix (continues on the following pages)
zSeries and S/390
Feature
IBM 3990-6E USP V TagmaStore USP/NSC
GDPS
Planned outage Supported Supported Supported
Unplanned outage via
IEA494I
Supported Supported Supported
IEA494I Long Busy
message
Default time of 120 sec
for FREEZE after IEA494I
message is issued.
Default time for FREEZE is 120 sec,
optional user-defined from 0 to 600
sec after IEA494I message is issued.
Default time for FREEZE is 120 sec,
optional user-defined from 0 to 600
sec after IEA494I message is issued.
Peer-to-Peer
Remote Copy
PPRC TCz, TCzA TCz, TCzA
Hardware based 3990-6 to 3990-6
USP V and TagmaStore USP/NSC to
USP V and TagmaStore USP/NSC.
USP V and TagmaStore USP/NSC to
USP V and TagmaStore USP/NSC.
Interface between
storage systems
ESCON – max of 43 km
Communication via
channel extenders
Communication via switch and
extender using fibre-channel and
fibre-channel cable
Communication via switch and extender
using fibre-channel and fibre-channel
cable
Copy modes
supported
Synchronous Synchronous, asynchronous
Note: The default for IBM software
commands is synchronous.
Synchronous, asynchronous
Note: The default for IBM software
commands is synchronous.
Dual Copy
combination support
Supported
Not Supported. Dual Copy is not
supported by storage system.
Not Supported. Dual Copy is not
supported by storage system.
TSO command
Support
Supported
Supported. Note: Some additional
options only available via Storage
Navigator/SVP.
Supported. Note: Some additional
options only available via Storage
Navigator/SVP.
ICKDSF command
support
Supported
Supported. Note: Some additional
options only available via Storage
Navigator/SVP.
Supported. Note: Some additional
options only available via Storage
Navigator/SVP.
P/DAS support Supported Supported Supported
Maximum pairs 64 131,072 16,384
Maximum paths
between storage
system s
4 8 per logical control unit 8 per logical control unit