Fujitsu ETERNUS DX100 S4 Basic Operation Manual page 57

Chapter 2 Basic Operation
2.1 Powering On and Off
When turning off the ETERNUS DX, the power shuts off after the write data on the cache memory is writ-
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ten back to the drives. As a result, it may take approximately five minutes (or approximately 10 minutes
in a Unified configuration and 20 minutes in a VLAN/Bonding maximum configuration) or a maximum
of 10 minutes (or approximately 40 minutes in a Unified configuration and 50 minutes in a VLAN/Bond-
ing maximum configuration) for the power supply to be completely turned off.
Do not turn off the power of the ETERNUS DX and the network devices that connect the ETERNUS DX to a
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server while the server is operating. This may result in the loss of data or prevent data from being saved
in the ETERNUS DX.
When using a power synchronized unit for power control, turn off the power of the ETERNUS DX via the
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power synchronized unit. When a power synchronized unit is connected, the power of the ETERNUS DX is
automatically turned on because the power synchronization function is activated.
To turn off the ETERNUS DX100 S4/DX200 S4, use the Power switch, a power synchronized unit, ETERNUS
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Web GUI, or ETERNUS CLI. If any other method is used to turn off the ETERNUS DX, the replacement cycle
for a battery is shortened significantly because the battery continues to charge and discharge.
After power-off, wait for about one minute before turning power on again.
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This section explains how to use the Power switch to turn off the ETERNUS DX.
For other procedures, refer to the related manuals.
1
Press and hold the Power switch of the controller enclosure for four seconds or more.
Power switch
The READY LED on the controller enclosure is turned off.
Press the Power switch only once. If the Power switch is pressed again between the time of the
READY LED turning off and the POWER LED turning off, the ETERNUS DX power may turn on.
2
The power of the ETERNUS DX is disconnected.
When the power is disconnected, the POWER LED of the controller enclosure and the POWER LEDs of the
drive enclosures are turned off.
FUJITSU Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Operation Guide (Basic)
Controller enclosure
57
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