Hitachi Compute Blade 2000 User Manual page 1221

(7) How to change scheduling modes of an LPAR
Standard server blades with LPAR manager firmware 58-3X or later
versions/High-performance server blades with LPAR manager firmware 78-3X or later
versions
Display the Logical Partition Configuration screen. Place the cursor on the
intersection between the LPAR line to change the scheduling mode and Scd
column, and press Enter to display a subscreen. Type a scheduling mode to
configure, and press Enter on the subscreen.
You can change scheduling modes between Dedicated and Shared dynamically
without deactivating the LPAR. If one of the following conditions is met, however, an
error message will appear to terminate the screen.
(a) Sufficient physical processors do not exist for assigning all logical processors
in shared mode to the groups assigned to the LPAR, when the shared mode is
dynamically changed to the dedicated mode.
(b) A physical processor, not belonging to the LPAR group, is included in the
physical processor assignment on the Logical Processor Configuration screen,
when the shared mode is dynamically changed to the dedicated mode.
(8) How to change the number of physical processors to assign to an LPAR
Standard server blades with LPAR manager firmware 58-3X or later
versions/High-performance server blades with LPAR manager firmware 78-3X or
later versions
Display the Logical Partition Configuration screen. Place the cursor on the
intersection between the LPAR line to change the logical processor number and
Pro column, and press Enter to display a subscreen. Type the number of logical
processors to configure, and press Enter on the subscreen.
You can assign the number of logical processors the same as
or less than that of physical processors available in shared
mode to an LPAR in shared mode. If you assign more logical
processors than physical processors to an LPAR in shared
mode, performance might extremely slow down.
It is recommended that the total number of logical processors
assigned to an LPAR in shared mode should be four times or
less than the number of physical processors available in
shared mode.
(9) How to change a processor group number of an LPAR
Standard server blades with LPAR manager firmware 58-3X or later versions/
High-performance server blades with LPAR manager firmware 78-3X or later
versions
Display the Logical Partition Configuration screen. Place the cursor on the
intersection between the LPAR line to change the processor group number and Grp
column, and press Enter to display a subscreen. Select a processor group number
of the LPAR to configure, and press Enter on the subscreen.
You can change a processor group number, when the LPAR is deactivated or
activated in shared mode. If one of the following conditions is met, however, an
error message will appear to terminate the screen.
(a) The scheduling mode of an LPAR is Shared and the LPAR is activated.
(b) No physical processor in shared mode exists in the group whose number is to
be changed.
See (3) How to add a processor group and (1) How to change the number of a
processor group for how to add and set a processor group number.
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