2.9.3 SAS backplane connections

(in PX4 model only)

A SAS backplane comes pre-installed in the TS500-E4/PX4 model. The SAS backplane has four 29-pin SAS connectors to support SAS hard disks. The backplane design incorporates a hot swap feature to allow easy connection or removal of SAS hard disks. The LEDs on the backplane connect to the front panel LEDs to indicate HDD access, HDD failure, thermal failure, or fan failure. See section “1.6 LED information.”

Front side

The front side of the SAS backplane faces the front panel when installed. This side includes four SAS connectors for the hot swap drive trays.

HDD status LEDs

Disk drive 1

Disk drive 2

HDD activity LEDs

Disk drive 3

Disk drive 4

2-28

Chapter 2: Hardware setup