Leds: Ops Panel - 5U Enclosure Front Panel - Lenovo ThinkSystem DS Series Hardware Installation And Maintenance Manual

provides the functions shown in the illustration below and listed in the table. See also
(page 100).
Ops panel functions (see left ear on front panel)
Unit Identification LED display
System Power On/Standby LED (Green/Amber)
Module Fault LED (Amber)
Logical Status (Amber)
Top Drawer Fault (Amber)
Bottom Drawer Fault (Amber)
Figure 32 LEDs: Ops panel – 5U enclosure front panel
Unit Identification Display
The UID is a seven-segment display that can be used to provide feedback to the user. Its primary function is to
display an enclosure unit identification number to assist users in setting and maintaining multiple enclosure
systems.
System Power On/Standby LED (green/amber)
LED displays amber when only standby power is available (non-operational). LED displays green when system
power is available (operational).
Module Fault LED (amber)
LED illuminates when experiencing a system hardware fault. It may be associated with a Fault LED on a PSU,
FCM, IOM, DDIC, or Drawer that helps the user to identify which component is causing the fault.
Logical Status LED (amber)
LED indicates a change of status or fault from something other than the enclosure management system. This may
be initiated from the controller module or an external HBA. The indication is typically associated with a DDIC and
LEDs at each disk position within the drawer, which help to identify the DDIC affected.
Drawer Fault LEDs (amber)
LED indicates a disk, cable, or sideplane fault in the drawer indicated: Top (Drawer 0) or Bottom (Drawer 1).
38 System overview
"Ops panel LEDs"