Hitachi VSP User and Reference Guide
2–12
Functional and Operational Characteristics
114 HRC This mode enables or disables the LCP/RCP port to
be automatically switched over when the PPRC
command ESTPATH/DELPATH is executed.
Mode 114 = ON:
Automatic port switching during ESTPATH/DELPATH
is enabled.
Mode 114 = OFF (default):
Automatic port switching during ESTPATH/DELPATH
is disabled.
Notes:
1. If you select an incorrect port while the mode is
set to ON, and if ESTPATH is executed when no
logic path exists, the port is switched to RCP..
2. Set this mode to OFF before using TPC-R (IBM
software for disaster recovery).
OFF MCU
122 ShadowImage For Split or Resync request from the Mainframe host
and Storage Navigator,
Mode 122 = ON:
• By specifying Split or Resync, Steady/Quick
Split or Normal/Quick Resync is respectively
executed in accordance with Normal/Quick
setting
Mode 122 = OFF (default)?
• By specifying Split or Resync, Steady/Quick
Split or Normal/Quick Resync is respectively
executed in accordance with Normal/Quick
setting. For details, see "SOM 122" sheet
Note:
(1) For RAID500 and later models, this mode is
applied to use scripts etc that are used on RAID400
and 450 (2) In the case of RAID500 and later
models, executing the pairresync command from
RAID Manager may be related to the SOM 087
setting.
(3) When performing At-Time Split from RAID
Manager
- Set this mode to OFF in the case of RAID450
- Set this mode to OFF or specify the environment
variable HORCC_SPLT for Quick in the case of
RAID500 and later.Otherwise, Pairsplit may turn
timeout.
(4) The mode becomes effective after specifying
Split/Resync following the mode setting. The mode
function does not work if it is set during the Split/
Resync operation
OFF -
187 Common Yellow Light Option (only for XP product) OFF -
190 HRC TCz – Allows you to update the VOLSER and VTOC
of the R-VOL while the pair is suspended if both
mode 20 and 190 are ON
OFF RCU
Mode Category Description Default MCU/RCU
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