![background image](http://html.mh-extra.com/html/ibm/totalstorage-ds5100/totalstorage-ds5100_installation-users-and-maintenance-manual_609021186.webp)
Table 50. Power supply and fan unit LEDs (continued)
LED
Color
Normal Status
Problem Status
Procedure
Service
Action
Allowed
Blue LED
Off
On = Safe to
remove
“Resetting the controller
circuit breakers” on page
158
“Replacing a power supply
and fan unit” on page 183
Interconnect-battery unit LEDs
Table 51. Interconnect-battery unit LEDs
Legend
LED
Color
Normal Status
Problem Status/Procedure
1
Battery
Needs
Attention
Amber LED
Off
On = Battery failed
See “Replacing a backup battery
pack” on page 191.
Figure 97. Interconnect-battery unit LEDs
154
IBM System Storage DS5100 and DS5300 Storage Subsystem: Installation, User’s, and Maintenance Guide