1
Handle
2
Power supply
3
Dc power LED
4
Ac power LED
b. Gently lift the handle up until it clicks. This signals that the power supply is securely seated in the
bay.
2. Connect the power cord for the new power supply to the power-cord connector on the power supply.
3. Reconnect the power cord and turn on the 2145 UPS-1U.
4. Turn on the node.
5. Make sure that the power-supply fan starts and the ac power LED
1
and dc power LED
2
(shown in Figure 163) on the power supply are lit, indicating that the power supply is operating
correctly.
Removing the power backplane
The SAN Volume Controller power backplane might have to be removed.
Removing the SAN Volume Controller 2145-8G4 power backplane
This topic describes how to remove the SAN Volume Controller 2145-8G4 power backplane.
Take precautions to avoid damage from static electricity. Wear an anti-static wrist strap and use a
static-protected mat or surface. For more information, see “Handling static-sensitive devices” on page xx.
Perform the following steps to remove the power backplane:
1. Turn off the node while ensuring that its data is mirrored and synchronized. See MAP 5350 in the
IBM System Storage SAN Volume Controller Troubleshooting Guide for more information.
2. Remove the cable-retention bracket and disconnect the power cable from the node. See “Removing the
cable-retention bracket” on page 34.
3. Remove the node from the rack and place it on a flat, static-protective surface. See “Removing the
SAN Volume Controller from a rack” on page 46.
4. Remove the top cover. See “Removing the top cover” on page 77.
svc00105
1
2
Figure 163. SAN Volume Controller 2145-8F2 or SAN Volume Controller 2145-8F4 ac and dc power LEDs
Chapter 2. Removing and replacing parts 171
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