IBM MTM 2145-12F, Hardware Installation Manual

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Checking the grounding of a SAN Volume Controller
Ensure that you understand how to check the grounding of a SAN Volume
Controller.
About this task
To test the grounding of a SAN Volume Controller node: Follow the steps for the
SAN Volume Controller configuration that you are using. Before you start, confirm
that you know the SAN Volume Controller model type. Determine the location of
the signal cables that are attached to the SAN Volume Controller.
When you are asked to test the grounding continuity, use your local procedures to
initiate the test. The test is successful if the measured resistance is 0.1 ohm or less.
Attention:
Some electrical circuits can be damaged if the external signal cables
are present at the SAN Volume Controller while it is undergoing a grounding test.
Procedure
1. Ensure that the SAN Volume Controller node is powered off. See MAP 5350:
Powering off a SAN Volume Controller node in the IBM SAN Volume Controller
Troubleshooting Guide.
2. Disconnect all signal cables from the SAN Volume Controller node, which
includes the following cables:
v The Fibre Channel cables
v The Ethernet cable or cables
3.
Disconnect the power cable from the site power-distribution unit.
4. Disconnect both input power leads from the site power distribution units.
5. Test the grounding continuity between a conductive area on the SAN Volume
Controller frame and the ground pin on the plug of each input-power cable.
6. Initiate one of the following procedures after you complete testing the
grounding continuity, depending on the outcome of the test.
v If the test is successful, reconnect any cables that were removed, and power
on any SAN Volume Controller nodes that were powered off.
v If the test was not successful, ensure that all cables are securely connected. If
the test still fails, test the individual system components. Before you test the
individual components, remove all cables from the components. If any
component test fails, replace the component. After you test each component
and replace any failing ones, repeat the complete system test by returning to
step 1.
v Test the SAN Volume Controller node, from the frame to the ground pin of
the input power receptacle.
Emergency power-off shutdown
The SAN Volume Controller supports emergency power-off (EPO) shutdowns.
Handling static-sensitive devices
Ensure that you understand how to handle devices that are sensitive to static
electricity.
Attention: Static electricity can damage electronic devices and your system. To
avoid damage, keep static-sensitive devices in their static-protective bags until you
are ready to install them.
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SAN Volume Controller: Model 2145-SV1 Hardware Installation Guide