IBM System Storage DS4000, Hardware Maintenance Manual

Page: 127 / 184

Table 46. DS4500 storage server power supply indicator light
Indicator light Color
Normal
operation
Problem
indicator
Possible conditions suggested by the
problem indicator
1
Power supply Green On Off
v
No power to DS4500 storage server
v No power to storage subsystem
v Power supply failed or is turned off
v Overtemperature condition
1
Always use the storage management software to identify the failure.
Mini hub indicator lights
There are five host-side mini hub indicator lights and five drive-side mini hub
indicator lights. Figure 68 shows the host-side indicator lights. The drive side
indicator lights are the same; however, the possible conditions suggested by the
problem indicators (described in Table 40 on page 87) might be different.
Table 47 describes the indicator light status when there are fibre channel
connections between host-side and drive-side mini hubs.
Table 47. DS4500 storage server host-side and drive-side mini hub indicator lights
Icon Indicator light Color
Normal
operation
Problem
indicator
Possible condition indicated by
the problem indicator
Speed Green On for 2 Gb
Off for 1 Gb
Light on indicates data transfer
rate of 2 Gb per second.
Light off indicates data transfer
rate of 1 Gb per second.
! Fault Amber Off On Mini hub or SFP module failed.
Note:
If a host-side mini hub is
not connected to a controller, this
fault light is always lit.
OUT
IN
!
2 Gb/s
1 Gb/s
OUT
IN
!
2 Gb/s
1 Gb/s
OUT
IN
!
2 Gb/s
1 Gb/s
OUT
IN
!
2 Gb/s
1 Gb/s
OUT
IN
!
2 Gb/s
1 Gb/s
OUT
IN
!
2 Gb/s
1 Gb/s
OUT
IN
!
2 Gb/s
1 Gb/s
OUT
IN
!
2 Gb/s
1 Gb/s
OUT
IN
!
2 Gb/s
1 Gb/s
OUT
Speed
Bypass
(upper port)
Bypass
(lower port)
Loop good
Fault
Mini-hub indicator
lights
Link rate
interface switch
Figure 68. DS4500 storage server mini hub indicator lights
Chapter 11. Type 1742 DS4500 Storage Server
99