2-98 SPARC Enterprise Mx000 Servers XSCF User’s Guide • August 2009
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 2-21 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.
If a PSB has one XSB number, the Uni-XSB configuration is assumed; and if it has
four XSB numbers, the Quad-XSB configuration is assumed.
TABLE 2-22 lists DCL information. The DCL has descriptors that each specify one item
of LSB information. Up to 16 items of LSB information (on the DCL) can be set for
one domain. These items can be displayed and specified by showdcl(8), and
setdcl(8). For details on DCL terms, see
TABLE 2-19.
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)
TABLE 2-21 PSB, XSB, and LSB Numbers to be Assigned (Decimal)
PSB Number (Note)
XSB Number
(Uni-XSB) (Note)
XSB Number (Quad-XSB)
(Note) LSB Number
00 00-0 00-0, 00-1, 00-2, 00-3 Independent values, 00 to 15, can
be arbitrarily specified in a
domain.
01 01-0 01-0, 01-1, 01-2, 01-3
02 02-0 02-0, 02-1, 02-2, 02-3
:::
15 15-0 15-0, 15-1, 15-2, 15-3
TABLE 2-20 Number of Domains and XSBs for Each System (2 of 2)
System
Range of Domain
ID
Maximum Number of
XSBs Memory Mirror (Note)
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