HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Maintenance and Service Guide (EK-G80MS-SA. C01, March 2005)

Replacing BA370, M2100 & M2200 Enclosure Elements
103HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
6. Remove power to the subsystem.
Caution: After shutting down an array controller in a BA370 enclosure for
longer than one day, perform the steps in the next section, “Disabling the
external cache batteries (BA370 enclosures only)” to prevent these write-back
cache batteries from discharging.
Caution: After shutting down array controllers in M2200 enclosures for
longer than one day, reseat each ECB to stop the ECB fault LED from flashing
and prevent the ECB battery from discharging.
Disabling the external cache batteries (BA370 enclosures only)
Use the following steps to disable the ECBs in BA370 enclosures:
Note: An ECB can 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 39
on page 104) on the ECB for approximately 5 seconds.
The ECB status LED flashes once, and then turns off.