TableB-1 Specificationsof CPU memory unit (SPARC M10-4/M10-4S)
Item Description
Maximumnumber of
CPUmemory units
2
Location Insideof chassis
Typeof m aintenance Active/cold,inact ive/cold, and system stopped
Maintenancecateg ory Replacement,expa nsion, and reduction
TableB-2 Specificationsof cross bar unit (SPARC M10-4/M10-4S)
Item Description
Numberof crossbar units 2
Location Rearof chassis
unitan d lower unit.
TheCPU memory unit lower consists of the following components.
■CPU
■Memory
■XSCF
■PCIEx press (PCIe) backplane
TheCPU memory unit upper consists of the following components.
■CPU
■Memory
CPU and XSCF are directly installedon the CPUmemory unit.Thus you cannot
replace the CPU and XSCF individually.
EachCPU memory unit upper and CPU memory unit lower is available in eight
differenttypes based on the combination of CPU type and the number of memory
slots.
TableB-1 lists the specifications of the CPU memory unit.
Forthe maintenance procedure, see "Chapter 7 Maintainingthe CPU Memory Units."
B.2 Crossbar Unit
Thecr ossbar units of the SPARC M10-4S and the crossbar box are crossbar switches
thatlogically connect the CPU memory unit and I/O unit. The crossbar unit has two
operationmodes. One is normal mode that provides 2-way operation. The other is
degradedmode that provides 1-way operation, which is half of normal mode.
TableB-2 and Table B-3 list the specifications of the crossbar units of the SPARC
M10-4Sand the crossbar box, respectively.
FujitsuM10-4/Fujitsu M10-4S/SPARC M10-4/SPARC M10-4S Service Manual ･December 2013468