HP DC SAN Backbone Director Switch Hardware Reference Guide (5697-2158, August 2012)

8. Replace the chassis door. See Installing the chassis door (page 62).
Replacing a power supply
The DC SAN Director can continue operating during the replacement if at least one power supply
continues operating. The replacement procedure for each power supply takes less than five minutes.
A power supply unit or filler panel is required for the power supply replacement.
Removing a power supply
CAUTION: Wear a grounded ESD strap when handling DC SAN Director components. The
Director chassis provides a grounding connection above the power connectors. Also, store
ESD-sensitive components in antistatic packaging.
To remove a power supply:
1. If the DC SAN Director is not operating during the replacement procedure, proceed to Step
2.
If the DC SAN Director is going to continue operating during the replacement, observe the
power LEDs to verify that the minimum number of power supplies is functioning. A
fully-populated DC SAN Director requires a minimum of one power supply slot at all times to
ensure power to the DC SAN Director.
2. Loosen the thumb screw.
3. Pull the handle out and down (see Figure 38 (page 76)).
4. Support the power supply from beneath and use the handle to remove the power supply from
the chassis.
5. If you are not replacing the power supply, insert a filler panel into the slot.
Installing a power supply
To install a power supply:
1. Remove the filler panel, if necessary.
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 38 (page 76)).
3. Tighten the thumb screw.
Replacing a power supply 75