Hitachi Universal Storage Platform V Reference Manual page 40

Table 2-4
Name
SUBSYSTEM
READY
SUBSYSTEM
ALARM
SUBSYSTEM
MESSAGE
SUBSYSTEM
RESTART
REMOTE
MAINTENANCE
PROCESSING
REMOTE
MAINTENANCE
ENABLE/DISABLE
BS-ON
PS-ON
PS SW ENABLE
PS ON / PS OFF
EMERGENCY
2-14
Hitachi Universal Storage Platform V/VM User and Reference Guide
Control Panel (USP V and USP VM)
Type
LED When lit, indicates that input/output operation on the channel
(Green) interface is possible. Applies to both storage clusters.
LED When lit, indicates that low DC voltage, high DC current, abnormally
(Red) high temperature, or a failure has occurred. Applies to both storage
clusters.
LED On: Indicates that a SIM (Message) was generated from either of the
(Amber) clusters. Applied to both storage clusters.
Blinking: Indicates that the SVP failure has occurred.
Switch Used to un-fence a fenced drive path and to release the Write Inhibit
command. Applies to both storage clusters.
LED When lit, indicates that remote maintenance activity is in process. If
(Amber) remote maintenance is not in use, this LED is not lit. Applies to both
storage clusters.
Switch Used for remote maintenance. While executing remote maintenance
(the REMOTE MAINTENANCE PROCESSING LED in item 5 is blinking),
when switching from ENABLE to DISABLE, remote maintenance is
interrupted. If the remote maintenance function is not used, this
switch is ineffective. Applies to both storage clusters.
LED Indicates input power is available.
(Amber)
LED Indicates that storage system is powered on.
(Green) Applies to both storage clusters.
Switch Used to enable the PS ON/ PS OFF switch. To be enabling the PS ON/
PS OFF switch, turn the PS SW ENABLE switch to the ENABLE
position.
Switch Used to power storage system on/off. This switch is valid when the
PS REMOTE/LOCAL switch is set to LOCAL. Applies to both storage
clusters.
LED This LED shows status of EPO switch on the rear door.
(Red) OFF: Indicates that the EPO switch is off.
ON: Indicates that the EPO switch is on.
Architecture and Components
Description