Enclosure Chassis; Atx Server Subsystem; Atx Server I/O Panel Connectors - LaCie 12big Rack Storage Server User Manual

LaCie 12big Rack Storage Server
User Manual
The high speed serial architecture of the 12big Rack Storage Server
provides three 4-lane connections from the EM Card to the HBA.
Module and major component locations are shown in
Fig. 08 - Module Locations

2.3. Enclosure Chassis

The chassis consists of a sheet metal enclosure assembly containing
an integrated backplane PCB, Enclosure Management Card (with
audible alarm) and drive carrier runner system.
The chassis is fitted with 19 inch rack mounting features which en-
ables it to be fitted to standard 19 inch racks and uses 2U (3.5") of
rack space.
The backplane PCB provides 12 direct dock SAS / Serial ATA con-
nectors to the drives and acts as the connectivity hub of the enclo-
sure, connecting to the EM Card.
The ten cooling fans are connected to the system via the EM Card.
There are 12 drive bays at the front of the enclosure. Each drive bay
accommodates a plug-in drive carrier module which houses low
profile (1 inch) high 3.5 inch form factor drives.
NOTE: A bay is defined as the space required to house a single
1.0" high 3.5 inch disk drive in its carrier module.
At the rear, the chassis assembly accommodates two Power Supply
Units and the ATX server subsystem.
The top cover on the enclosure provides access to the cooling fans
and the ATX server subsystem.
IMPORTANT INFO: The cover should only be removed by service
personnel as it provides access to a service area.
Upon replacement, the cover MUST be secured by turning the lock
mechanism to the "locked" position with a screwdriver (see
Fig. 07.
Fig. 09 - Lid Set to the "Locked" position

2.4. ATX Server Subsystem

The ATX server subsystem comprises:
✦ A 12big Rack Storage Server ATX motherboard.
✦ Slots for up to 7 low profile PCI Express cards. Blank PCI
plates are fitted in the empty slots.
2.4.1.
The ATX server I/O panel incorporates the following connectors:
✦ 1 x serial port.
✦ 1 x VGA video port.
✦ 2 x RJ45 gigabit Ethernet ports. Boot from LAN capability
(PXE) is available on these ports. It can be enabled in the ATX
server BIOS via the "Advanced -> Onboard LAN Configura-
tion" option.
✦ 4 x USB 2.0 ports.
✦ 2 x RJ45 additionnal gigabit Ethernet port on PCIe card.
✦ 1 x Mini SAS connector for 6Gb/s JBOD storage expansion.
Fig. 09).

ATX Server I/O Panel Connectors

System Overview
page 11