Table 13. Switch block on the system board assembly (continued)
Switch
number Switch name
Default position Description
SW5-7 At-Scale debug Off Enables BMC At-Scale debug when changing it to the
ON position.
SW5-8
Low security
Off Allows transitioning between signed official XCC
builds and XCC test signed builds, and bypasses
CRTM boot check of XCC firmware when changing it
to the ON position.
System LEDs and diagnostics display
See the following section for information on available system LEDs and diagnostics display.
•
“Drive LEDs” on page 25
• “Front operator panel LEDs” on page 26
• “External diagnostics handset” on page 27
• “XCC system management port LEDs” on page 33
• “Power supply LEDs” on page 34
• “System-board-assembly LEDs” on page 36
• “LEDs on the firmware and RoT security module” on page 38
Drive LEDs
This topic provides information on drive LEDs.
Each hot-swap drive comes with an activity LED and status LED and the signals are controlled by the
backplanes. Different colors and speeds indicate different activities or status of the drive. The following
illustration shows the LEDs on a hard disk drive or solid-state drive.
Figure 9. Drive LEDs
Drive LED Status Description
1 Drive activity LED (left) Solid green
The drive is powered but not active.
Blinking green The drive is active.
2 Drive status LED (right) Solid yellow The drive has an error.
Blinking yellow (blinking slowly, about one
flash per second)
The drive is being rebuilt.
Blinking yellow (blinking rapidly, about four
flashes per second)
The drive is being identified.
Chapter 2. Server components 25
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