
Chapter 2 Setting Up XSCF 2-171
Note – (1) Memory mirroring requires twice the amount of memory domain used for
operation. If the PSB is a Quad-XSB type in M8000/M9000 servers, memory mirroring
cannot be used. In M4000/M5000 servers, memory mirroring can be used regardless of
whether the system board is a Uni-XSB or Quad-XSB.
Note – (2) The add/delete/replace operations are done by field engineers (FEs). If a
command is performed, the maintenance guidance is displayed. FEs will use the device
check, select, add, and delete operations in the guidance window. For information about how
to handle and operate these devices, see the Service Manual for your server and any manual
written for FEs.
Dividing a PSB Into XSBs
■ Command operation
1. Use the showfru(8) command to display information on dividing a PSB into XSBs.
2. Use the setupfru(8) command to divide a PSB into XSBs.
Delete device The device, such as a system board, is deleted. deletefru (Note 2)
Replace device The device, such as a system board, is replaced. replacefru (Note 2)
Diagnosis Diagnose the system board.
The specified system board must be unconfigured from the domain
or the domain in which the system board is configured must be
powered off.
testsb
XSCF> showfru –a sb
Device Location XSB Mode Memory Mirror Mode
sb 00 Uni No
sb 01 Uni No
sb 02 Uni No
<Example> Specify PSB#00 for a Quad-XSB.
XSCF> setupfru –x 4 sb 00
TABLE 2-30 System Board Configuration (Continued)
Item Description Shell Command Remarks
Komentarze do niniejszej Instrukcji