Cisco UCS B420 M3 High Performance Blade Server
For full service and installation instructions, see the
Cisco UCS B420 M3 High Performance Blade Server
. You can install up to four UCS B420 M3 High Performance Blade Servers to
a chassis.
Figure 8: Cisco UCS B420 M3
Power button and LED
8
Hard drive bay 1
1
Network link status LED
9
Hard drive bay 2
2
Blade health LED
10
Hard drive bay 3
3
Console connector
11
Hard drive bay 4
4
Reset button access
12
Left ejector handle
5
Beaconing LED and button
13
Asset tag
6
Right ejector handle
7
3 Each server has a blank plastic asset tag that pulls out of the front panel, provided so you can add your own asset tracking label without interfering with the
intended air flow.
LEDs
The LED indicators indicate whether the blade server is in active or standby mode, the status of the network
link, the over all health of the blade server, and whether the server is set to give a flashing blue beaconing
indication. See
Interpreting LEDs, on page 36
for details.
The removable hard disks also have LEDs indicating hard disk access activity and hard disk health.
Buttons
The Reset button is just inside the chassis and must be pressed using the tip of a paper clip or a similar item.
Hold the button down for five seconds and then release it to restart the server if other methods of restarting
are not working.
Cisco UCS 5108 Server Chassis Installation Guide
15
Overview
Cisco UCS B420 M3 High Performance Blade Server
