Combinations of LPAR settings that can be activated if Performance
tuning options are enabled
The following table describes combinations of the LPAR settings that can be
activated if Performance tuning options are enabled:
Processor allocation Idle Detection Guest Idle Mode Low Latency
Dedicated Y HALT N
N HALT N
MWAIT Y
MWAIT N
Shared Y HALT N
N HALT N
How default values change due to application of Performance tuning
options
The following table describes how the default values change if Performance
tuning options are applied.
Parameter
Default
Performance tuning options
Disabled Enabled
Idle Detection Y N
Guest Idle Mode HALT MWAIT
Low Latency N Y
EPT 1GB N Y
Firmware combinations
The following table describes firmware combinations:
Firmware
Version
CB 520H B4 CB 520X B2 CB 520X B3
Management module firmware A0305 or later A0270 or later A0320 or later
LPAR manager firmware 02-50 or later 02-27 or later 02-56 or later
Specifying settings
To specify settings of Performance tuning options, perform the operations
described below from the Web console. Make sure that the server blade is
powered off when you specify settings.
System Operation
2-23
Hitachi Compute Blade 500 Series Logical partitioning manager User's Guide
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