Hitachi Compute Blade 2000, Руководство пользователя

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Mechanism of the N+M cold standby
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Mechanism of the N+M Cold Standby
(1) Partition in Basic mode
In the N+M cold standby, various settings on active partitions are taken over by the
standby partition when N+M failover of partitions occur in the Basic mode.
You can, therefore, boot the server from the same disk logical unit (LU), and resume
the same OS environment as the active partition, on the standby partition.
Hereinafter, the settings to be taken over are referred to as “partition configuration
information” or merely “configuration information”.
The same hardware configuration and same firmware
version must be installed in the active partition and the
standby partition.
(2) Partition in LP mode
In the N+M cold standby, LPAR manager configuration information for the active
partition such as LPAR setting, LPAR status, and WWN information, managed by
LPAR manager, are copied and taken over to the standby partition, which is booted
in the LP mode. This can allow the standby partition to recreate the same LPAR
configuration for the active partition even if the server blades are switched. Each
LPAR is booted from the same disk (LU) as the active partition to resume the OS
environment. Hereinafter, the settings to be taken over are referred to as “partition
configuration information” or merely “configuration information”.
Interface expansion card
Interface expansion card Interface expansion card Interface expansion card
FC switch/SAS switch