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The HP Integrity rx8620 Servers are 17U[1] high,
16-socket symmetric multiprocessor (SMP) rack-mount or stand-alone
servers that accommodate up to 128GB of memory, PCI-X I/O, and internal
peripherals including disks and DVD or tape drives. High-availability
features include N+1 hot-swap fans and power, redundant power cords,
and hot-plug PCI cards and hard disk drives. Features of the server
include: Up to
128GB of physical memory provided by dual in-line memory modules
(DIMMs). Up to 32 processors with
a maximum of four processor modules per cell board and a maximum
of four cell boards. One cell controller (CC)
per cell board. All CPUs and cell controllers
on the cell boards are cooled with turbo cooler fans. Four embedded hard disk drives.
Available sizes are 36GB, 73GB, and 146GB drives. Two internal DVD drives or
one DVD drive and one 40GB DDS-4 DAT drive. Nine front chassis mounted
N+1 fans. Twelve rear chassis mounted
N+1 fans. Six N+1 PCI-X card cage fans. Six N+1 bulk power supplies. Sixteen PCI-X slots divided
into two partitions. Each partition can accommodate up to eight
PCI cards. Four 220 VAC power plugs.
Two are required and the other two provide power source redundancy.
Front Panel | |
Front Panel
Indicators and ControlsThe front panel, located on the front of the server, includes
a power switch. Refer to . The following status LEDs are on the front panel: Standby power
status LED (green) Management processor (MP)
status LED (green) Enclosure status run (green),
fault (red), and attention (yellow), and power (green) LEDs Remote port status LED (green)
Cell Board | |
The cell board contains the processors, main memory, and the
cell controller (CC) application specific integrated circuit (ASIC)
that interfaces the processors and memory to the I/O. The CC provides
a crossbar connection that allows communication with other cell
boards in the system. It connects to the processor dependent hardware
(PDH) and micro controller hardware. Each cell
board holds up to 16 DIMMS. There can be one to four cell boards
installed in an HP Integrity rx8620 Server. A cell board can be selectively powered down
for cell replacement without affecting cells in other configured
partitions. System
Backplane | |
The server backplane board contains a pair of crossbar chips
(XBC), the clock generation logic, the reset generation logic, some
power regulators, and two local bus adapter (LBA) chips that create
internal PCI buses for communicating with the core I/O cards. The
backplane also contains connectors for attaching the cell boards,
PCI-X backplane, management processor (MP) core I/O cards, SCSI
cables, bulk power, chassis fans, front panel display, intrusion
switches, external system bus adaptor (SBA) link connectors, and
the system scan card. I/O Subsystem | |
All of the I/O is integrated into the system by way of the
PCI busses. The CC on each cell board communicates with one SBA
over the SBA link. The SBA link consists of both an inbound and
an outbound link with an effective bandwidth of approximately 1GB
per second. The SBA converts the SBA link protocol into “ropes.” A rope
is defined as a high-speed, point-to-point data bus. The SBA can
support up to 16 of these high-speed bi-directional links for a
total aggregate bandwidth of approximately 4GB per second. The server
supports a maximum of two SBAs with the capability of supporting
an additional two SBAs in an externally connected I/O cabinet known
as the HP Server Expansion Unit. There are LBA chips on the PCI-X backplane that act as a bus
bridge, supporting either one or two ropes and capable of driving
33 MHz or 66 MHz for PCI cards. The LBAs can also drive at 66 MHz
or 133 MHz for PCI-X cards. |
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