Power-Off Procedure - NEC D3 Quick Start Manual

*Note: If the Power LED does not remain lit or if the Service LED does not turn off after the self-test a controller
fault may have occurred. For information about identifying and troubleshooting fault conditions, please refer to
the D3/D4 Disk Array Unit User Guide available on the Storage Manager CD or contact NEC technical support.

Power-Off Procedure

To prevent any data loss or corruption, the following process should be followed when an array is to be shut
down.
1. Turn off or disconnect application servers using the prescribed shut-down process for that server's
applications and operating system.
2. Turn off the array by depressing the power button until the Ready LED starts blinks at a faster rate then
release the power button. The power button is located on the array controller at the rear of the base
unit.
3. Turn off the external BBU if used.
4. If the array needs to remain powered off for more than a few hours, partially eject both controllers from
the base unit at the same time and then reseat them, to prevent the internal battery backup from
draining.
NEC D3/D4 Quick Start Guide 12