Mode Category Description Default MCU/RCU
one for all the external ports connected to the
SYMMETRIX. Without doing Check Paths, the display
of Characteristic1 can be changed automatically by
the Device Health Check performed once per hour. If
SSB=AD02 occurs and a path is blocked, perform
Check Paths on this path again.
4. If Check Paths is performed while ShadowImage for
Mainframe pair and Compatible FlashCopy
®
V2 Mirror
pair are defined in the specified volume, the Check
Paths operation is rejected with a message “605
2518”. If ShadowImage for Mainframe pair and
Compatible FlashCopy
®
V2 Mirror pair are defined in
the specified volume, do not perform Check Paths
and wait until the display is automatically changed.
749 Microcode
version V02 and
lower:
Dynamic
Provisioning,
Dynamic Tiering
Microcode
version V02_ICS
or V02+1:
Dynamic
Provisioning
Dynamic
Provisioning for
Mainframe
Dynamic Tiering
Microcode
version V03 and
higher:
Dynamic
Provisioning
Dynamic
Provisioning for
Mainframe
Dynamic Tiering
Dynamic Tiering
for Mainframe
Thin Image
Disables the Dynamic Provisioning Rebalance function that
allows the HDDs of all ECC Groups in the pool to share the
load.
Mode 749 = ON:
The Dynamic Provisioning Rebalance function is disabled.
Mode 749 = OFF (default):
The Dynamic Provisioning Rebalance function is activated.
Notes:
1. This option is applied when no change in performance
characteristic is desired.
2. All HDP pools are subject to the HDP Rebalance
function.
3. When a pool is newly installed, the load may be
concentrated on the installed pool volumes.
4. When 0 data discarding is executed, load may be
unbalanced among pool volumes.
OFF
757 Open and
Mainframe
Enables/disables output of in-band audit logs.
Mode 757 = ON:
Output is disabled.
Mode 757 = OFF (default):
OFF MCU/RCU
156 System option modes
Hitachi Virtual Storage Platform G1000, G1500, and Virtual Storage Platform F1500 Hardware Guide
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