NEC VERSA S1300 Series, User Manual

Page: 70 / 118

Powering Off the Disk Array Unit
Follow the procedure below to turn off the power of the disk array unit. Turning on or
off the power in an improper way may result in data loss, software errors, and/or
equipment damage.
1. Turn off the host system.
2. Press and hold the shut down switch (push-switch with SDN indicated) of the LAN
card installed in the disk array unit for several seconds until the SDN LED starts to
flash or go on. You can release the switch if SDN LED starts to flash or go on.
3. Confirm that the SDN LED of the LAN card installed in the disk array unit stops
flashing and goes on, and then turn off the AC: press both power switches at the rear
of the disk array unit, and then press both power switches at the rear of the
additional disk enclosure to turn power off.
The disk array unit has a redundant power configuration to prevent the entire unit
from shutting down due to a single power supply failure. Therefore, turn off all the
power switches at the rear of the additional disk enclosure and the disk array unit.
Data may be lost if you turn off the power of additional disk enclosures before
turning off the power of the disk array unit.
(4) Power switches of additional disk enclosure
(May be turned off at the same time the power
switches of the disk array unit are turned off.)
(1) Host system
(3) Power switches of disk array unit
(2) Shut Down switch
Figure 2-16 Powering Off the Disk Array Unit
2-22 Setting Up the System