To conduct the internal device check, perform the following steps:
1.
Check for any non-IBM changes that might have been made to the device. If
any are present, obtain the “Non-IBM Alteration Attachment Survey,” form
number R009, from the IBM branch office. Complete the form and return it to
the branch office.
2.
Check the condition of the inside of the device for any metal or other
contaminants, or any indications of water, other fluid, fire, or smoke damage.
3.
Check for any obvious mechanical problems, such as loose components.
4.
Check any exposed cables and connectors for wear, cracks, or pinching.
Checking the grounding of a SAN Volume Controller, the
uninterruptible power supply, and the redundant ac-power switch
Ensure that you understand how to check the grounding of a SAN Volume
Controller, the uninterruptible power supply, and the optional redundant ac-power
switch feature.
Ensure that you understand how to check the grounding of a SAN Volume
Controller, the uninterruptible power supply, and the optional redundant ac-power
switch.
To test the grounding of a SAN Volume Controller node, perform the following
steps. Before you start, confirm that you know the SAN Volume Controller model
type and whether you are using redundant ac power. 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
perform 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.
1.
Ensure that the SAN Volume Controller node is powered off. See “MAP 5350:
Powering off a SAN Volume Controller node” in the
IBM System Storage 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
v
The serial cable that is connected to the uninterruptible power supply
3.
Disconnect all signal cables from the uninterruptible power supply.
4.
If redundant ac power is not used, disconnect the uninterruptible power-supply
power cable from the site power-distribution unit.
5.
If redundant ac power is used, turn off any SAN Volume Controller that is
being supplied from the redundant ac-power switch, and remove the power
cable to this system from the redundant ac-power switch.
6.
If redundant ac power is used, disconnect
both
input power leads from the site
power distribution units.
7.
If redundant ac power is not used, test the grounding continuity between a
conductive area on the SAN Volume Controller frame and the ground pin on
the plug of the uninterruptible power-supply input-power cable.
8.
If redundant ac power is used, test the grounding continuity between a
conductive area on the SAN Volume Controller frame and the ground pin on
Safety and environmental notices
ix
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