System Idle Mode; Normal Power On/Off Procedures - Hitachi G1500 Hardware Manual

System idle mode

When the storage system power cables are plugged into the PDUs and the PDU breakers
are on, the storage system is in idle (basic supply only) mode. When the storage system
is in idle mode:
The amber Basic Supply (BS) LED on the control panel is on. AC power is applied to
■
the power supplies.
The green READY LED is off. The controller and drive chassis are not operational.
■
The fans in both the controller and drive chassis are running.
■
The cache backup batteries are being charged.
■
The storage system consumes significantly less power than it does in operating mode.
■
For example, a storage system that draws 100 amps while operating draws only 40 to
60 amps in idle mode, depending on the number of drives in the system. The more
drives, the more power is saved. See
page 121)
To put the storage system into idle mode from the OFF condition:
1. Ensure power is available to the AC input boxes and PDUs in all racks.
2. Turn on all PDU power switches and circuit breakers.
To put the storage system into idle mode from a power on condition, perform the steps
in Power off procedures (on page 122)
To shut down the storage system, perform the power off procedures, and then turn off
all PDU circuit breakers.
Warning: Verify the storage system is turned off normally and in idle mode
before turning off the PDU circuit breakers. Otherwise, turning off the PDU
circuit breakers can leave the storage system in an abnormal condition.
Chassis
Controller Chassis 0 or 1
SFF Drive Chassis
LFF Drive Chassis
FMD Drive Chassis

Normal power on/off procedures

This section provides general information about turning on and turning off the power to
the storage system. If further assistance is required, contact customer support.
Chapter 6: Turning power on and off to the storage systems
Hitachi Virtual Storage Platform G1000, G1500, and VSP F1500 Hardware Guide
and Table 32 Dimension specifications (on page 139)
Table 27 Maximum idle power per chassis
Table 27 Maximum idle power per chassis (on
.
Maximum idle power (VA)
500
1,120
720
1,280
System idle mode
.
121