HP XP7 Owner Guide (H6F56-96006)

Table 11 System option modes (continued)
MCU/RCUDefaultDescriptionCategoryMode
• Pair status: Duplex/Pending
• A pair whose RCU# is identical to the RCU for which the
Freeze command is specified.
MCU/RCU.Notes:Continuous Access
Synchronous Z
64
(cont)
1. When all the following conditions are met, set Mode 64=ON.
2. When all the following conditions are met, set Mode 64=ON.
- Customer requests to stop the update I/O operation to the
RCU of a Continuous Access Synchronous Z pair for the whole
subsystem.
- Disaster Recovery function such as GDPS, HyperSwap, or
Fail Over/ Fail Back, which requires compatibility with IBM
storage, is not used as this Mode 64 operates without having
compatibility with IBM storage.
- Only Peer-to-Peer-Remote-Copy operation. (Do not use it in
combination with Business Continuity Manager.)
3. Even though the Failover command is not an applicable
criterion, when executing the Failover command while Mode
114 is ON, since ports are not automatically switched, the
Failover command fails.
4. With increase of Sync pairs in subsystem, the time period to
report the completion of Freeze command and RUN command
gets longer (estimate of time to report completion: 1 second
per 1000 pairs), and MIH may occur.
-OFFBusiness Copy Z80
• For RAID 300/400/450 (SI for OPEN or Mainframe) In
response to the Restore instruction from the host or Storage
Navigator, the following operation is performed regardless
of specifying Quick or Normal.
• For RAID 500/600/700 (SI for OPEN) In response to the
Restore instruction from the host, if neither Quick nor Normal
is specified, the following operation is performed
Mode 80 = ON: Normal Restore / Reverse Copy is performed.
Mode 80 = OFF: Quick Restore is performed.
Notes.
1. This mode is applied when the specification for Restore of SI
is switched between Quick (default) and Normal.
2. The performance of Restore differs depending on the Normal
or Quick specification.
-OFFDetermines whether NormalCopy or QuickResync, if not specified,
is performed at the execution of pairresync by CCI.
Business Copy87
Mode 87 = ON: QuickResync is performed.
Mode 87 = OFF: NormalCopy is performed.
MCUOFFChanges the default CGROUP Freeze option.HRC104
MCUOFFThis mode enables or disables the LCP/RCP port to be
automatically switched over when the PPRC command
ESTPATH/DELPATH is executed.
HRC114
Mode 114 = ON:
Automatic port switching during ESTPATH/DELPATH is enabled.
Mode 114 = OFF (default):
Automatic port switching during ESTPATH/DELPATH is disabled.
Notes:
30 Functional and operational characteristics