IBM DS4700 manual Shows the location of the Battery LEDs

Data caching starts after the battery completes the startup tests.

Attention: Write caching is suspended while a battery pack is either charging or self-testing.

Figure 104 shows the location of the Battery LEDs.

3 2 1

ds470008
			1	2	3
Figure 104. Battery unit LEDs
Table 48. Battery unit LEDs
Number	LED	Normal Status	Problem Status
1	Service Action	Off	On
	Allowed (OK to
	Remove)
2	Service Action	Off	On
	Required
	(Fault)
3	Battery	Green means on,	Off
	Charging	ready
		Blinking green
		means charging

Chapter 4. Operating the storage subsystem 143