Cooling Module Leds - Lenovo Storage D1212 Hardware Installation And Maintenance Manual

Figure 59. PSU LEDs
Table 15. PSU LED States
PSU Fail (Amber) AC Missing
(Amber)
Off Off
On On
Off Off
Off Off
Flashing Flashing
Off On
On On
–
On

Cooling Module LEDs

Note: 5U enclosures only.
58
Lenovo Storage D1212/D1224/D3284Hardware Installation and Maintenance Guide
Power (Green) Status
Off No AC power to either PSU.
Off PSU present, but not supplying power or PSU
alert state (usually due to critical temperature).
On Mains AC present, switch on. This PSU is
providing power.
Flashing
AC power present, PSU in standby (other PSU
is providing power).
Off PSU firmware download.
Off AC power missing, PSU in standby (other PSU
is providing power).
On GEM software has lost communication with
the PSU.
Off PSU has failed. Follow the procedure in
"Removing a PSU" on page 91.