Use the cable retainers to secure the power cables from being accidentally pulled
out of the enclosure. The cable retainer, which is on the back of each PSU handle,
has a curved opening that faces the rear of the PSU. After you plug the power
cables in to the PSU, slip the power cable behind the retainer. Then, pull the cable
back into the retainer opening to secure the cable.
Each cable must be routed through the retainer, as shown in Figure 134. For PSU 1,
hook the power cable underneath the cable retainer so the cable can extend to the
left. For PSU 2, make a loop to secure the cable under the retainer and extend the
power cable to the right side of the enclosure.
To remove the power cable, push the cable forward to unhook it from the cable
retainer. Then, unplug the cable from the PSU.
Procedure
To power on the system, complete the following steps.
1. Power on all expansion enclosures. Use the supplied power cords to connect
both power supply units of the enclosure to their power sources. If the power
sources have circuit breakers or switches, ensure that they are turned on. The
enclosure does not have power switches. Repeat this step for each expansion
enclosure in the system.
Note: Each enclosure has two power supply units. To provide power failure
redundancy, connect the two power cords to separate power circuits.
2. From the rear of the expansion enclosure, check the LEDs on each expansion
canister (see Figure 135).
▌1▐ Power
▌2▐ Status
▌3▐ Fault
The canister is ready with no critical errors when Power is illuminated, Status
is on, and Fault is off. If a canister is not ready, refer to the “Procedure:
Understanding the system status using the LEDs” topic in “Troubleshooting”.
3. Wait for all expansion canisters to finish powering on.
Figure 134. Routing the power cables through the cable retainer
Figure 135. Expansion canister LEDs
144 Storwize V7000 Gen2 and Gen2+: Quick Installation Guide
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