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Turning off the storage server
Attention:
Fault LEDs are on. Correct the fault before you turn off the power. Use the Storage
Manager client and the Fault LEDs to check the overall status of the storage server
and its components. All LEDs should be green on the front of the storage server. If
they are not, use the Storage Manager client to diagnose the problem (see
"Monitoring status through software" on page 62). This ensures that the storage
server will power up correctly later. For more information, see Chapter 6, "Hardware
maintenance," on page 95.
The storage server is designed to run continuously, 24 hours a day. After you turn
on the storage server, do not turn it off. Turn off the power only when:
v Instructions in a hardware or software procedure require you to turn off the
v A service technician tells you to turn off the power.
v A power outage or emergency situation occurs (see "Performing an emergency
Statement 5:
CAUTION:
The power control button on the device and the power supply do not turn off
the electrical current supplied to the device. The device also might have more
than one power cord. To remove all electrical current from the device, ensure
that all power cords are disconnected from the power source.
Perform the following steps to turn off the power:
1. Before proceeding, use the Storage Manager client to determine the status of
2. Use the Storage Manager client to check the status of the storage server.
3. Stop all I/O activity to the storage server and attached expansion units. Make
4. If applicable, use the operating system software to disconnect the storage
Except in an emergency, never turn off the power if any storage server
power.
shutdown" on page 61).
the system components and special instructions. The operating system software
might require you to perform other procedures before you turn off the power.
Correct problems that are reported before you turn off the power.
sure that:
v All of the green Drive active LEDs on the front of the storage server (and on
all attached expansion units) are not flashing.
v The green Cache active LEDs on the back of the storage server are off.
Attention:
To turn off all power to the storage server, you must turn off both
power-supply switches and disconnect both power cords. Use the procedure in
step 5 on page 60 for the proper shutdown sequence.
server logical drives from the host before the storage server is powered off.
Chapter 4. Operating the storage server
59
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