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HSG80 Array Controller V8.7 Maintenance and Service Guide
3–3
Replacement Procedures for BA370 Enclosure Elements
Disabling the External Cache Batteries (ECBs)
Use the following steps to disable the ECBs.
NOTE: An ECB might contain one or two batteries, depending on the configuration (single ECB
or dual ECB).
1. Press and hold the battery disable switch (labeled SHUT OFF, see Figure 3–2) on
the ECB for approximately 5 seconds.
The ECB status LED will F
LASH
once and then turn O
FF
.
Figure 3–2: ECB battery disable switch location (dual ECB example)
2. Repeat step 1 for all ECBs in the subsystem.
NOTE: The batteries are no longer protecting the cache module memory.
1
ECB 1
2
ECB 2
3
Power connector
4
Status LED
5
Battery disable
switch (SHUT OFF)
CXO6164C
4
5
2
3
1