FUJITSU SPARC M4000 - Manual (Page 170)

2-114 SPARC Enterprise Mx000 Servers XSCF User’s Guide • April 2008
Note – Memory mirroring requires twice the amount of memory domain used for
operation. If the PSB is a Quad-XSB type in the high-end systems, memory mirroring
cannot be used. In the midrange systems, memory mirroring can be used regardless
of whether the system board is a Uni-XSB or Quad-XSB.
Note – 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
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Command operation
1. Use the showfru (8) command to display information on dividing a PSB into
XSBs.
XSCF> showfru –a sb
Device Location XSB Mode Memory Mirror Mode
sb 00 Uni No
sb 01 Uni No
sb 02 Uni No
2. Use the setupfru (8) command to divide a PSB into XSBs.
<Example> Specify PSB#00 for a Quad-XSB.
XSCF> setupfru –x 4 sb 00
3. Use the showfru (8) command to display information on dividing a PSB into
XSBs.
XSCF> showfru –a sb
Device Location XSB Mode Memory Mirror Mode
sb 00 Quad No
sb 01 Uni No
sb 02 Uni No