HP A7990A - StorageWorks SAN Director 4/16 Blade Switch, Hardware Reference Manual

Page: 79 / 144

DC SAN Backbone Director hardware reference guide 79
Removing a power supply
To remove a power supply:
CAUTION:
Wear a grounded ESD strap when handling DC Director components. The Director chassis provides a
grounding connection above the power connectors. Also,
store ESD-sensitive components in antistatic
packaging.
1. If the DC Director is not operating during the replacement procedure, go to step step 2 .
If the DC Director is going to continue operating during the replacement, check the power LEDs to
verify that the minimum number of power supplies is functioning. A fully populated DC Director requires
a minimum of one power supply slot at all times to ensure power to the DC Director.
2. Loosen the thumb screw.
3. Pull the handle out and down (see Figure 32 ).
4. Support the power supply from beneath. Use the handle to remove the power supply out of the chassis.
5. If you are not replacing the power supply, insert a filler panel into the slot.
Replacing a power supply
To replace a power supply:
1. Remove any filler panel.
2. Insert the power supply into the slot and push the handle up. Verify that the power supply is seated by
gently pulling on the handle (see Figure 32 ) .
3. Tighten the thumb screw.
4. Verify that the power LED on the power supply displays a steady green light.
Figure 32 Power supply
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