Hitachi Universal Storage Platform VM - Manual (Page 41)

Architecture and Components 2-15
Hitachi Universal Storage Platform V/VM User and Reference Guide
Emergency Power-Off Switch
Figure 2-6 shows the location of the emergency power-off (EPO) switch on the
USP V (top right corner of the back side of controller frame). Figure 2-7 shows
the location of the EPO switch on the USP VM (next to the control panel on the
primary rack). Use the EPO switch only in case of an emergency.
To power off the USP V/VM storage system in case of an emergency, pull the
EPO switch up and then out towards you, as illustrated on the switch. The EPO
switch must be reset by service personnel before the storage system can be
powered on again.
REAR VIEW
OF
CONTROLLER
FRAME
EMERGENCY
UNIT
EMERGENCY
POWER OFF
Figure 2-6 Location of EPO Switch on the USP V
FRONT VIEW OF
PRIMARY RACK
EMERGENCY
UNIT
EMERGENCY
POWER OFF
Figure 2-7 Location of EPO Switch on the USP VM