「prtdiag」というコマンドを使うんだそうな。

bash-3.2# prtdiag
System Configuration: Oracle Corporation  sun4u Sun Fire V125
System clock frequency: 167 MHZ
Memory size: 1GB

==================================== CPUs ====================================
E$          CPU                    CPU
CPU  Freq      Size        Implementation         Mask    Status      Location
—  ——–  ———-  ———————  —–   ——      ——–
0    1002 MHz  1MB         SUNW,UltraSPARC-IIIi    3.4    on-line     MB/P0

================================= IO Devices =================================
Bus     Freq  Slot +      Name +
Type    MHz   Status      Path                          Model
——  —-  ———-  —————————-  ——————–
pci     66    MB          pci108e,1648 (network)
okay        /pci@1f,700000/network@2

pci     66    MB          pci108e,1648 (network)
okay        /pci@1f,700000/network@2,1

pci     33    MB          isa/su (serial)
okay        /pci@1e,600000/isa@7/serial@0,3f8

pci     33    MB          isa/su (serial)
okay        /pci@1e,600000/isa@7/serial@0,2e8

pci     33    MB          isa/rmc-comm-rmc_comm (seria+
okay        /pci@1e,600000/isa@7/rmc-comm@0,3e8

pci     33    MB          pci10b9,5229 (ide)
okay        /pci@1e,600000/ide@d

pci     66    MB          scsi-pci1000,21 (scsi-2)
okay        /pci@1c,600000/scsi@2

pci     66    MB          scsi-pci1000,21 (scsi-2)
okay        /pci@1c,600000/scsi@2,1

============================ Memory Configuration ============================
Segment Table:
———————————————————————–
Base Address       Size       Interleave Factor  Contains
———————————————————————–
0x0                1GB               1           BankIDs 0

Bank Table:
———————————————————–
Physical Location
ID       ControllerID  GroupID   Size       Interleave Way
———————————————————–
0        0             0         1GB             0

Memory Module Groups:
————————————————–
ControllerID   GroupID  Labels         Status
————————————————–
0              0        MB/P0/B0/D0
0              0        MB/P0/B0/D1