2-150 SPARC Enterprise Mx000 Servers XSCF User’s Guide • January 2012
Note – Enabling Memory Mirror would require twice the amount of memory of a
domain used for operation. If the system board is a Quad-XSB in the M8000/M9000
servers, Memory Mirror cannot be used.
TABLE 2-25 lists the PSB, XSB, and LSB numbers to be assigned.
The PSB number is same as the CPU/Memory Board unit or I/O unit slot number.
TABLE 2-24 Number of Domains and XSBs for Each System
System
Range of Domain
ID
Maximum Number of
XSBs Memory Mirror (Note)
Entry-level systems The system containing
1 CPU chip.
(M3000 server)
0 1 Not available
Midrange systems The system containing
up to 4 CPU chips.
(M4000 server)
0 - 1 4 (1 x 4) Enabled for both
Uni-XSBs and
Quad-XSBs
The system containing
up to 8 CPU chips.
(M5000 server)
0 - 3 8 (2 x 4)
High-end systems The system containing
up to 32 CPU chips.
(M9000)
0 - 23 32 (8 x 4) Uni-XSBs only
Enabled
The system containing
up to 16 CPU chips.
(M8000)
0 - 15 16 (4 x 4)
High-end system with
expansion cabinet
The system containing
up to 64 CPU chips.
(M9000)
0 - 23 64 (16 x 4)