Power Supply Indicator Light; Mini-Hub Indicator Lights - IBM TotalStorage DS4400 User Manual

Power supply indicator light

The power supply has one indicator light, as shown in Figure 28.
Figure 28. Power supply indicator light
Table 14 describes the power supply indicator light.
Table 14. Power supply indicator light
Indicator light Color
Power supply Green
1
Always use the storage-management software to identify the failure.

Mini-hub indicator lights

There are five indicator lights on each mini-hub. Figure 29 shows the host-side
indicator lights. The drive side indicator lights are the same; however, the possible
conditions indicated by the problem indicators (described in Table 15 on page 34)
might be different.
interface switch
Figure 29. Mini-hub indicator lights
2 Gb/s 2 Gb/s 2 Gb/s 2 Gb/s
1 Gb/s 1 Gb/s 1 Gb/s 1 Gb/s
! ! ! !
OUT OUT OUT OUT
IN IN IN IN
Power supply
Green light indicates
that the power supply
is operating properly.
Normal status: On
Problem status: Off
Normal
operation
On
Speed
Link rate
2 Gb/s
1 Gb/s
!
Fault
OUT
Bypass
(upper port)
Loop good
IN
Bypass
(lower port)
Mini-hub indicator
lights
2 Gb/s 2 Gb/s 2 Gb/s 2 Gb/s
1 Gb/s 1 Gb/s 1 Gb/s 1 Gb/s
! ! ! !
OUT OUT OUT OUT
IN IN IN IN
Power supply
Green light indicates
that the power supply
is operating properly.
Normal status: On
Problem status: Off
Problem Possible conditions indicated by the
indicator problem indicator
Off
v Power supply has failed or is turned off
v Overtemperature condition
2 Gb/s 2 Gb/s 2 Gb/s 2 Gb/s
1 Gb/s 1 Gb/s 1 Gb/s 1 Gb/s
! ! ! !
OUT OUT OUT OUT
IN IN IN IN
Chapter 2. Operating the DS4400 Storage Server
1
2 Gb/s 2 Gb/s 2 Gb/s 2 Gb/s
1 Gb/s 1 Gb/s 1 Gb/s 1 Gb/s
! ! ! !
OUT OUT OUT OUT
IN IN IN IN
33