Leds, Controls, And Connectors Of Controllers With Two Standard Fibre Channel Host Expansion Channels And Two Optional Iscsi Host Expansion Channels - IBM System Storage DS5020 Installation, User's, And Maintenance Manual

Note: The iSCSI ports have the same LEDs as the management Ethernet ports. As
Figure 71. LEDs, controls, and connectors of controllers with two standard Fibre Channel
host expansion channels and two optional iSCSI host expansion channels
Table 17. Rear controller LEDs, controls, and connectors
LED
Service Action Allowed (OK to
Remove)
Service Action Required
(Fault)
Cache Active
Diagnostic
Heartbeat
Host Channel Speed - L1
Host Channel Speed - L2
Ethernet Link Speed
108
IBM System Storage DS5020 Storage Subsystem: Installation, User's, and Maintenance Guide
with the Ethernet port LEDs, the iSCSI port LEDs represent link speed and
link activity.
Host channel Host channel
speed - L1 LED speed - L2 LED
Normal Status
Off
Off
On - Data is in cache
Off - Caching is turned off. No
data in cache
On - Seven-segment LEDs
indicate diagnostic code
Off - Seven-segment LEDs
indicate enclosure ID
Flashing
See Table 18 on page 109.
See Table 18 on page 109.
On - 1 Gbps
Off - 100 Mbps
Diagnostic
LED
Service Service
action action Cache
allowed required active
LED LED LED
Drive channel
port bypass LED
Drive channel
speed LED
Heartbeat
LED
Ethernet link
activity LED
Ethernet link
speed LED
Problem Status
On
On
Not applicable
Not applicable
Off
Not applicable