Fujitsu PRIMEQUEST 400 Series, Installation Manual, Page: 105 / 446

C122-E001-10EN 2-59
2.5 Partition Initialization
2.5.6 Setting a reserved SB
A reserved SB is prepared for a partition with consideration given to the operation states.
If an SB included in the partition fails and must be disconnected, the reserved SB is
newly added to the partition to replace the disconnected SB.
Regarding free SBs and SBs that have already been defined as reserved SBs for particular
partitions, the user can also define to which partitions reserved SBs are to be set.
In addition, one of the split SBs can be specified as a reserved SB in a partition.
Notes:
•
If an SB failure causes the reboot of a partition, a switch is made to the reserved
SB indicated as the Reserved SB in the partition.
If a failure occurs in one of the components (such as memory) in a duplicated
component configuration in Extended Mirror Mode and the other component
continues operating without interruption, switching to a reserved SB is not made.
•
No SB split with XPAR set can be assigned as the reserved SB of a partition that
is set in Extended Mirror Mode. Extended Mirror Mode cannot be set in
partitions to which split SBs are assigned as reserved SBs.
•
The reserved SB defined for a partition is recommended to be one that has the
same memory and CPU configurations as those of SBs configured in the partition.
If the number of CPUs increases during switching to the specified reserved SB,
additional licenses are required.
•
The reserved SB must contain the same type of CPU as those of SBs configured
in the partition. An SB housing a different type of CPU cannot be defined as the
reserved SB.
• An SB with 32 GB of memory mounted (8-GB DIMM x 4) cannot be mixed in
the same partition with an SB having another memory configuration.
Therefore, an SB with 32 GB of memory mounted (8-GB DIMM x 4) cannot be
set as a reserved SB in a partition consisting of SBs having another memory
configuration.
•
An SB with 16 GB of memory mounted (4-GB DIMM x 4) cannot be mixed in
the same partition with an SB having another memory configuration.
Therefore, an SB with 16 GB of memory mounted (4-GB DIMM x 4) cannot be
set as a reserved SB in a partition consisting of SBs having another memory
configuration.
• When started for the first time after a switch to a reserved SB in a partition on
which Windows Server 2003 is installed, the system prompts for a restart of the
partition. As soon as the message is displayed, restart the partition as instructed.