Hitachi Compute Blade 2000, User Manual

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(b) When an LPAR in shared mode is activated in the target core: a shared mode
LPAR is activated on the group that is assigned to the core, degenerating the
target core removes the physical processor in shared mode in the group.
(c) The target core is the last one in the system.
If unrecoverable failure occurs in the physical processor, the
following symptom might occur.

NIC function is temporarily unavailable and
communication with the management module and
external networks break down.
LPARs also have the following symptoms depending on
the scheduling mode of the physical processor.

Dedicated mode: A failure occurs in the LPAR using the
failed physical processor in the dedicated mode. Other
LPARs are not affected.

Shared mode: LPARs using the processor in the shared
mode will have failure when a fault occurs in the
processor.
Other LPARs performance in the shared mode might
slow down. When this happens, deactivate the
slow-down LPAR and then reactivate it to restore it.