HP XP7 Storage - Manual (Page 130)

FREEZE function Expected messages Pairs split? Failure condition
enabled for the
affected MCU pairs. (2) One or more IEA494I message showing
EXTENDED LONG BUSY display.
(3) One or more IEA491E or IEA494I message
showing PAIR SUSPENDED display.
1. Because of the nature of the failure, there is no means of activating the FREEZE feature.
2. FREEZE is not activated, though activation is possible with the relevant command.
3. When one side of the MCU cache is blocked, Cnt Ac-S Z pairs in Duplex status are not affected, but Pending Duplex pairs
are split. Splitting pairs in Pending Duplex status provides additional protection against unexpected events caused by cache
failure.
GDPS and Continuous Access Synchronous Z features
The following table shows GDPS and Cnt Ac-S Z features supported by IBM3990-6E, XP7, and
P9500.
NOTE: The information shown may not be current. Please contact your HP account team for the
latest GDPS Cnt Ac-S Z matrix information.
P9500 XP7 IBM 3990 6E Feature
GDPS
Supported Supported Supported Planned outage
Supported Supported Supported Unplanned outage using
IEA494I
Default time for FREEZE is 120
seconds. The range for this Default time for FREEZE is 120
seconds. The range for this Default time of 120 sec for
FREEZE after IEA494I message
is issued. IEA494I Long Busy message
option is 0 to 518,400 option is 0 to 518,400
seconds (144 hours) after
IEA494I message is issued. seconds (144 hours) after
IEA494I message is issued.
Cnt Ac-S Z Cnt Ac-S Z PPRC Peer-to-Peer Remote Copy
XP7, P9500,
XP24000/XP20000 Disk XP7, P9500, and
XP24000/XP20000 Disk Array 3990-6 to 3990-6 Hardware based
Array, and XP12000 Disk to XP7, P9500 and
Array/XP10000 Disk Array to XP24000/XP20000 Disk
Array.
XP7, P9500,
XP24000/XP20000 Disk Array
and XP12000 Disk
Array/XP10000 Disk Array.
Communication using switch
and extender using Fibre Communication using switch
and extender using Fibre ESCON – max of 43 km
communication using channel
extenders Interface between storage
systems
Channel and Fibre Channel
cable Channel and Fibre Channel
cable
Synchronous Synchronous Synchronous Copy modes supported
Not Supported. Dual Copy is
not supported by storage
system. Not Supported. Dual Copy is
not supported by storage
system. Supported Dual Copy combination
support
Supported. Some additional
options only available using
Remote Web Console/SVP. Supported. Some additional
options only available using
Remote Web Console/SVP. Supported TSO command Support
Supported. Some additional
options only available using
Remote Web Console/SVP. Supported. Some additional
options only available using
Remote Web Console/SVP. Supported ICKDSF command support
Supported Supported Supported P/DAS support
130 Pair operations using PPRC