Leds; Psu Leds; Front Panel Leds; Psu Led States - IBM 106 Hardware Installation And Maintenance Manual

3. Verify that the drive carrier modules have been correctly installed.
4. Check any visible SAS indicators (controller enclosure, expansion enclosure, and HBA).
5. Check HBA BIOS for SAS target visibility.
6. Verify that the operating system driver has been installed correctly.
Note: If the enclosure fails initialization, see If the enclosure does not in itialize.

LEDs

LED colors are used consistently throughout the enclosure and its components for indicating status:
• Green: good or positive indication
• Blinking green/amber: non-critical condition
• Amber: critical fault
• Blue: identification

PSU LEDs

Under normal conditions, the bitonal PSU Status OK LED will be a constant green.
See also Figure 13 on page 16. When a fault occurs, the color of the LEDs will display as shown in the
following table.
Table 6. PSU LED states
PSU Status
(Green)
Off
On
Off
Off

Front panel LEDs

The front panel displays the aggregated status of all the modules.
The enclosure status LEDs located on the front panel are labeled in Figure 12 on page 15 and they are
individually described in the narrative subsections that follow the table.
56 IBM ESS expansion: Hardware Installation and Maintenance Guide - Model 106
PSU Status (Amber)
Off
Off
On
Blinking
Status
No AC power on this PSU only
AC present; PSU working correctly
PSU fault(over temperature, over voltage, over current)
PSU firmware download is in progress