Digital Equipment StorageWorks HSZ70 Manuel

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Installing an HSZ70 External Cache Battery (ECB)
VHDCI Cable Precautions
All of the cables to the controller, cache module, and ECB use
very-high density cable interconnect connectors (VHDCI). These
connectors have extraordinarily small mating surfaces that can be
adversely affected by dust and movement. Follow these
precautions when you're connecting VHDCI cables:
T
Clean the mating surfaces with a blast of clean air.
T
Mate the connectors by hand, then tighten the retaining
screws to 1.5 inch-pounds—approximately 1/4 additional
turn after the connectors have fully mated.
T
Test the assembly by gently pulling on the cable, which
should not produce visible separation.
Dual-Redundant Configurations
Figure 1. ECB for Dual-Redundant Configurations
1
Shut off button
2
Status LED
3
ECB cable
4
Faceplate and controls for second battery (to
backup two cache modules in dual-redundant
configurations)
To remove the failed ECB...
1.
Connect a local terminal to the controller with the
operational ECB. The controller to which you're connected
is "this controller;" the controller whose ECB you're
replacing is the "other controller."
Follow these instructions to replace an ECB in a single or
dual-redundant configuration. See the HSZ70 Array
Controller HSOF Version 7.0 Service Manual for
instructions on upgrading a subsystem to a
dual-redundant configuration.
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2
C H
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C A
W E
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P O
T U S
S T A
O F
F
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S H
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The DIGITAL logo is a trademark of Digital Equipment Corporation.
Copyright 1997 Digital Equipment Corporation
2.
Disable failover and take the controllers out of their dual-
redundant configuration with the following command:
SET NOFAILOVER
3.
Start FRUTIL, the field-replacement utility, with the
following command:
RUN FRUTIL
4.
Choose option 3 from the FRUTIL Options menu to begin
the replacement procedure.
5.
Confirm that you want to replace the ECB.
To install the new ECB...
1.
Insert the new ECB into an empty slot.
2.
Connect the open end of the ECB cable to the new ECB, then
press Return.
3.
Restart the "other controller" with the following command:
RESTART OTHER_CONTROLLER
4.
Re-establish the dual-redundant configuration with the
following command:
SET FAILOVER COPY=THIS_CONTROLLER
This command copies the subsystem's configuration from
"this controller" to the "other controller."
5.
Wait until the new ECB's status light is on continuously,
then disconnect the ECB cable from the old ECB.
CAUTION: Do not disconnect the old ECB until the batteries
in the new ECB are fully charged. The new ECB's status
light will be lit continuously to indicate that its batteries are
fully charged. A blinking status light indicates that its
batteries are charging.
6.
If you want to backup both cache modules with the new
ECB, repeat this procedure for other controller and its cache
module.
EK–HSZ70–EB. A01