Enclosure Management; Hs Expander Module - Top Panel; Leds: Controller Channel Fan Module - Top Panel; Hs Expander Module Leds - IBM Medium J11 Hardware Installation And Maintenance Manual

Table 12. LEDs: Controller channel fan module - top panel
Module LED
Channel Fan Status LED
HS Expander module
The replacement procedure should be completed within an absolute maximum of 3 minutes.
Figure 21. HS expander module - top panel
Table 13. HS expander module LEDs
Module LED
HS Expander Status LED Expander OK (Off)

Enclosure management

IOMs actively manage the enclosure. Each module has a SAS expander with its own storage enclosure
processor (SEP) that provides a SES target for a host to interface to through the ANSI SES Standard. If one
of these modules fails, the other module will continue to operate.
LED behavior states
Channel Fan OK (Off)
LED behavior states
Fan fault ID (amber/
blinking amber)
Expander fault ID
(amber/blinking amber)
Chapter 3. System overview 23
Power off (Off)
Power off (Off)