1. Installing Internal Optional Devices
Express5800/R120h-2M (2nd-Gen) User’s Guide
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Chapter 2 Preparations
1.3
Identifying Servers (UID Switch)
Using UID (Unit ID) Switch helps you to identify the target server.
When the server is working,
be sure to identify the target server by using UID Switch first
before you turn
off the server or disconnect a cable from the server.
To turn UID LED on, press UID Switch. When it is pressed again, the LED will be off.
UID switch/ UID LED
UID switch/ UID LED
Front 8x 2.5-inch drive model / 24x 2.5-inch drive model
Front 8x 3.5-inch drive model
Front 12x 3.5-inch drive model
UID LED
Rear
