Fujitsu PRIMEQUEST 2000 Series Administration Manual page 62

CHAPTER 3 Component Configuration and Replacement (Add, Remove)
3.2 High availability configuration
Source SB Memory Operation
Mode
Spare
*1: DIMM configuration wherein both the Normal Mode and the Mirror Mode can be set. In case of one CPU,
8, 16 or 24 DIMMs are mounted, and in case of two CPUs, 16, 32 or 48 DIMMs are mounted.
*2: DIMM configuration wherein the Normal Mode, the Mirror Mode and the Spare Mode can be set. In case
of one CPU, 24 DIMMs are mounted, and in case of two CPUs, 48 DIMMs are mounted.
Notes on Windows
The operating system may not start at the first startup after an SB is switched to the Reserved SB in a
partition running Windows. Set Windows to automatically restart to set the Reserved SB in the partition
running Windows.
For details on the setting, see'11.4.3 Dump environment setting (Windows) ', and check the [Automatically
restart] check box of 'FIGURE11.14 [Startup and Recovery] dialog box'.
Consider the time taken to restart, if the SB failure results in the suspension of work for the above stated
reason. The restart will require twice the length of the time, since a restart is needed after the switching to the
Reserved SB and the subsequent initial startup.
However, the following workaround can suppress the restart request.
SB DIMM configuration for Reserved
SB
Normal or Mirror or Spare (*2)
Normal
Mirror
Spare
Normal or Mirror (*1)
Normal or Mirror or Spare (*2)
38
Memory Operation Mode after
Reserved SB switching
Mirror
Normal
Mirror
Spare
Normal
Spare
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