Owners Manual

EqualLogic FS7500 Controller Hardware Maintenance Installing System Components
2–17
Bundling Network and Power Cables
If desired, bundle the network and power cables as described in Bundling the Network and Power
Cables on page 2-13. If you bundle the cables, use the hook-and-loop fasteners to secure them
together.
Note: Securing the network cable and power cable bundles to the rails is optional. If you do
secure the cable bundles to the rails, they will need to be unsecured before the controller
can be extended for service.
Turning On Power to a Controller
From the front of the controller, press the power button on the left side of the controller. See
Figure 1-2 for the location of the power button.
An LED indicator on the controller power button indicates if power is supplied to the controller
and if the controller is operational.
In addition, the controller power supplies have an LED that shows whether power is present or
whether a power fault has occurred, as shown in Figure 1-5 and described in Table 2-5.
Table 2-5: FS7500 Controller Troubleshooting – Power Supply LED
LED Color and Patterns Description
Not lit No power.
Green When the controller is in standby mode (power connected but the
controller is not turned on), a green LED indicates that a valid AC
source is connected to the power supply, and that the power supply
is operational. When the controller is turned on, a green LED also
indicates that the power supply is providing DC power to the
controller.
Amber Indicates a problem with the power supply.
Alternating green and amber Flash upgrade is in progress.
Powering Down the Controller
To initiate a clean shutdown of the controller, quickly press and release the power button. The
controller writes any remaining data in the cache to storage, and then executes a graceful
shutdown. To reboot the controller, quickly press and release the power button again. Make sure
that the controller power is completely off before you reboot the controller.
Caution: Do not press and hold the power button to shut down the controller. Powering down the
controller using this method can cause data loss. Never power down both controllers at once.