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HSG80 Array Controller V8.7 Maintenance and Service Guide
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Replacement Procedures for BA370 Enclosure Elements
Replacing an ECB With the BA370 Subsystem Powered On
Use the following steps to replace the ECB with the BA370 subsystem powered on.
NOTE: The FRUTIL procedure for a dual-redundant controller configuration assumes that a
single ECB with a dual battery is installed and an empty bay is available for the replacement
ECB. If an empty bay is not available, place the replacement ECB on top of the enclosure. After
removing the old ECB, carefully insert the replacement ECB into the empty bay.
1. Connect a PC or terminal to the maintenance port of the controller that requires an
ECB replacement.
The controller connected to the PC or terminal becomes “this controller.”
2. Start FRUTIL with the following command:
RUN FRUTIL
3. Enter Y(es) to confirm the intent to replace the “this controller” ECB with power
on.
CAUTION: Make sure that at least one ECB is connected to the ECB Y-cable at all
times during this procedure. Otherwise, cache memory data is not protected and is
subject to loss.
The ECB Y-cable has a 12-volt and a 5-volt pin. Improper handling or misalignment
when connecting or disconnecting might cause these pins to contact ground, resulting
in cache module damage.
NOTE: When upgrading to a dual-redundant controller configuration, if an empty power
supply or disk drive bay, or ECB enclosure bay is not available, place the replacement ECB
on top of the enclosure.
4. Replace the ECB:
IMPORTANT: Do not wait for the battery status light on the replacement ECB to turn solid
green.
•
For a single ECB:
a.
Remove the old ECB and insert the replacement ECB into the same
location.
b.
Connect the replacement ECB to the open end of the ECB Y-cable
attached to the old ECB and then quickly disconnect the Y-cable from the
old ECB.