IBM TotalStorage, Руководство по установке

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3. Attention: Some electrical circuits could be damaged if the external signal
cables are present at the SAN Volume Controller while the grounding check is
being done.
Ensure that no external cables are present at connectors
2
and
3
.
4. Disconnect and remove the Ethernet cable.
5. Follow your local procedures and check the grounding of the SAN Volume
Controller. Any test equipment must be connected to the frame of the SAN
Volume Controller.
If the grounding is correct, go no further with these instructions.
If the grounding is not correct, unplug the power cable
1
from the
uninterruptible power supply in the SAN Volume Controller.
6.
Check for continuity between the frame of the SAN Volume Controller and the
ground pin
1
of each main power connector as shown in Figure 2.
7. If the uninterruptible power supply has no continuity, exchange it for a new
one. Then perform a complete grounding check again.
If the uninterruptible power supply has continuity, you might have a problem
with the power cable or with the grounding of the host system.
8. Check the power cable for continuity.
If the power cable does not have continuity, exchange it for a new one, then
perform step 1 on page xiii through step 5 again.
Inspecting the uninterruptible power supply for unsafe
conditions
Be cautious of potential safety hazards that are not covered in the safety checks. If
unsafe conditions are present, determine how serious the hazards are and whether
you should continue before correcting the problem.
Prerequisites:
Consider the following conditions and the safety hazards they present:
Electrical hazards (especially primary power)
Primary voltage on the frame can cause serious or lethal electrical shock.
Explosive hazards
A bulging capacitor can cause serious injury.
Mechanical hazards
Loose or missing items (for example, nuts and screws) can cause serious
injury.
1
Figure 2. Ground pin
xiv
Installation Guide