Fastt500 Raid Controller Mini Hub Indicator; Fastt500 Raid Controller Indicator Lights (Back Panel) - IBM TotalStorage DS4000 Hardware Maintenance Manual

Table 25. FAStT500 RAID controller indicator lights (back panel)
Indicator light Color
Fan and communications module
Fan and Amber
communication
fault
Power supply
Power supply Green
1. Always use the storage management software to identify the failure.
The mini hub indicator lights on the back of the controller unit are shown in
Figure 33.
(upper port)
(lower port)
Figure 33. FAStT500 RAID controller mini hub indicator lights
Table 26 on page 51 describes the mini hub indicator lights.
50
IBM TotalStorage DS4000: Hardware Maintenance Manual
Normal Problem
Operation Indicator
Off On
On Off
Mini-hub indicator lights
Fault
Bypass
Loop
good
Bypass
Possible conditions suggested by the problem
indicator (1)
v Fan and communications module failed or is
installed incorrectly
v Overtemperature condition
v No power to controller unit
v No power to storage subsystem
v Power supply failed
v Overtemperature condition