Acer Network Device Altos R520 Manual do Utilizador descarregar pdf (Página 25)

Mid-plane board

The mid-plane boad serves as the primary interface between the

mainboard, backplane, and control panel. It is used to determine the

desired hard drive interface for the system. There are two mid-planes

available for this system: an active mid-plane board and a passive mid-

plane board.

Active mid-plane board (SAS model)

The active mid-plane board is used to provide SAS support. It has an

integrated LSI 1068 SAS controller that provides support for up to eight

hot-plug SAS HDDs. By default, the active mid-plane provides software

RAID levels 0, 1, and 10. With the installation of an optional RAID

activation key and RAID cache, the mid-plane can support hardware

RAID levels 0, 1, 5, 6, 10, and 50.

Note: Mid-plane will support RAID level 6 when available.

Item Description Item Description

A Fan 2 power connector G RAID BBU (battery backup

unit) connector

B Fan 1 power connector H Mid-plane power connector

C RAID activation key

connector

I Thumbscrew

D Bridge board connector J Fan 4 power connector

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Acer Network Device Altos R520 Manual do Utilizador Página 25