batteries are completely discharged. The storage system generates a SIM
that provides the status of the battery charge. See Cache backup
batteries on page 113 for information about the batteries.
4. When the system self-test is complete and all components are operating
normally, the green READY LED turns ON and the storage system is
ready for use.
If the ALARM LED is also ON, or if the READY LED is not ON after 20
minutes, contact customer support for assistance.
Power off procedures
Before you begin
• Confirm all maintenance and software-specific shutdown procedures have
been completed.
• Verify all I/O activity to the storage system has stopped. You can vary
paths offline and shut down the attached hosts.
• Follow this procedure exactly when powering off the storage system.
Caution: Except in an emergency, do not turn off the PDU breakers before
turning off the power to the system. The system reacts as a power failure
occurred and uses the cache backup batteries to keep the cache active until
the data in the cache are transferred to the cache backup flash memory.
When the cache backup batteries discharge power, the power-on time may be
prolonged by the amount of charge remaining in the batteries. Fully
discharged batteries take 90 minutes to charge.
Note: The control panel includes a safety feature to prevent the storage
system power from being turned on or off accidentally. The PS power ON/OFF
switch does not work unless the ENABLE switch is moved to and held in the
ENABLE position while the power switch is moved to the ON or OFF position.
Procedure
1. In the PS area on the control panel, move the ENABLE switch to the
ENABLED position and hold it there. While holding the switch in the
ENABLED position, move the PS ON/OFF switch to the OFF position. Then
release both switches.
2. Wait for the storage system to complete its shutdown routines.
Depending on the storage system configuration and certain MODE
settings, it can take 20 minutes for the storage system to copy data from
the cache to the cache flash drives and for the disk drives to spin down.
If the READY and PS LEDs do not turn OFF after 20 minutes, contact
customer support for assistance.
Power on/off procedures 111
Hitachi Virtual Storage Platform G1000, G1500, and Virtual Storage Platform F1500 Hardware Guide
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