A
ESM
B
ESM
exp81020
2
3
4
1
2
3
4
1
Figure
43.
The
ac
power
supply
and
fan
unit
LEDs
Table
31.
The
ac
power
supply
and
fan
unit
LEDs
Number
LED
Normal
Status
Problem
Status
1
Power supply and fan unit
Power
On
Off
2
Service Action Allowed
(OK to Remove)
Off
On
3
Service Action Required
(Fault)
Off
On
4
Direct Current Enabled
On
Off
The
dc
power
supply
and
fan
unit
LEDs
This section describes the primary dc power supply and fan unit LEDs on the
storage expansion enclosure.
A
ESM
B
ESM
2
3
4
1
2
3
4
1
exp81030
Figure
44.
The
dc
power
supply
and
fan
unit
LEDs
74
IBM System Storage DS4000 EXP810 Storage Expansion Enclosure: Installation, User’s and Maintenance Guide
Summary of Contents for DS4000 EXP810
Page 2: ......
Page 67: ...ds470067 Figure 20 Installing a bezel Chapter 2 Installing the EXP810 39...
Page 229: ......
Page 230: ...Printed in USA GC26 7798 09...
