Fujitsu M8000 Home Theater Server User Manual


 
1-22 SPARC Enterprise M8000/M9000 Servers Overview Guide December 2010
1.3.2 CPU/Memory Board Unit
The CPU/memory board unit (CMU) contains CPUMs, memory modules, and a
DDC. The CMU with an I/O unit can be combined to construct one or more
domains.
The CMU has the following features:
Contains an interconnect LSI module that uses the latest LSI process.
Uses Double Data Rate (DDR)II DIMM memory.
Supports the DR function that enables hot maintenance and replacement of CMUs
during system operation, and enables addition and deletion of active CMUs
during system operation.
A redundant DDC configuration enables continuous operation even if a DDC
fails.
1.3.3 I/O Unit
The I/O unit (IOU) consists of a PCIe bridge control LSI module, a printed circuit
board containing a DDC, a hard disk drive (HDD), PCIe slots, and PCI cassettes for
the IOU. The IOU and the CMU can be combined to configure domains.
The IOU has the following features:
It contains eight PCIe slots.
The IOU Onboard Device Card_A (IOUA) can be used to connect the in-cabinet
drive unit (2.5-inch SAS interface), the in-cabinet CD-RW/DVD-RW drive unit,
and the tape drive unit. The LAN port (1000BASE-T/100Base-TX/10Base-T)
mounted on the card can be used.
It supports PCI hot-plug for External I/O Expansion Units and PCIe slots.
Link card can be used to connect IOU to External I/O Expansion Unit.
It supports the DR function that enables active maintenance and replacement of
IOUs during system operation and enables addition and deletion of active IOUs
during system operation.
Insert the PCI card into one of the supplied cassettes before inserting it into a
built-in PCIe slot in the IOU. A PCI card whose length is up to 177.8 mm (short
size) can be mounted in a slot.
A redundant DDC configuration enables continuous operation even if a DDC
fails.