HP StorageWorks XP Remote Web Console Software - Manual (Page 218)

Table 69 XP Disk Array Response Characteristics to Failure Conditions (continued)
FREEZE Function Expected Messages TC for Mainfr. Pairs
Suspended?
Failure Condition
(3) One (or more)
IEA491 and IEA494
messages showing
PAIR SUSPENDED are
displayed.
When one side of the MCU cache is blocked, duplex TrueCopy for Mainframe pairs are not
affected, but pending duplex TrueCopy for Mainframe pairs are suspended. Suspending TrueCopy
for Mainframe pairs with pending duplex status provides additional protection in the unlikely event
of a cache failure.
GDPS TrueCopy for Mainframe-Compatible XRC Matrix
“GDPS TrueCopy for Mainframe-Compatible XRC Matrix” (page 218) shows the functional
comparison between 3990-6E, XP24000/XP20000 Disk Array, and XP12000/XP10000 Disk
Array about the function of GDPS support, PPRC, and XRC.
The information shown in
“GDPS TrueCopy for Mainframe-Compatible XRC Matrix” (page 218)
was current at the time of publication of this document but is expected to change over time. Contact
your HP service representative for the latest GDPS TrueCopy for Mainframe-Compatible XRC matrix
information.
Table 70 GDPS TrueCopy for Mainframe-Compatible XRC Matrix
XP12000/XP10000 Disk
Array
XP24000/XP20000 Disk
Array
IBM 3990-6E zSeries and S/390 Feature
GDPS
Supported Supported Supported Planned outage
Supported Supported Supported Unplanned outage via
IEA494I
Default time for FREEZE is
120 sec, optional Default time for FREEZE is
120 sec, optional Default time of 120 sec for
FREEZE after IEA494I
message is issued. IEA494I Long Busy message
user-defined from 0 to 600 user-defined from 0 to 600
sec after IEA494I message
is issued. sec after IEA494I message
is issued.
TrueCopy for Mainframe,
TrueCopy for Mainframe
Asynchronous TrueCopy for Mainframe,
TrueCopy for Mainframe
Asynchronous PPRC Peer-to-Peer Remote Copy
XP24000/XP20000 Disk
Array and XP24000/XP20000 Disk
Array and 3990-6 to 3990-6 Hardware based
XP12000/XP10000 Disk XP12000/XP10000 Disk
Array to Array to
XP24000/XP20000 Disk XP24000/XP20000 Disk
Array and Array and
XP12000/XP10000 Disk
Array. XP12000/XP10000 Disk
Array.
Communication via switch
and extender using Fibre Communication via switch
and extender using Fibre ESCON − max of 43 km
Communication via channel
extenders
Interface between storage
systems
Channel and Fibre Channel
cable Channel and Fibre Channel
cable
Synchronous, asynchronous Synchronous, asynchronous Synchronous Copy modes supported
The default for IBM software
commands is synchronous. The default for IBM software
commands is synchronous.
218 Using PPRC Commands for TrueCopy for Mainframe