install–38 - Ibm

Turning off the storage server
the front of the storage server. If they are not, use the storage-management
software to diagnose the problem (see “Monitoring status through software” on
page 38).
Note: The green Drive active LED and amber Drive fault LED below the drive
CRUs might flash intermittently as the drives spin-up. Wait until the
storage server is finished powering up before checking the LEDs on the
front of the storage server. For more information, see “Checking the
LEDs” on page 39.
Attention: Except in an emergency, never turn off the power if any storage server
Fault LEDs are on. Correct the fault before you turn off the power, using the proper
troubleshooting or servicing procedure. This ensures that the storage server will
power up correctly later. For more information, see “Troubleshooting” on page 70.
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
power.
v A service technician tells you to turn off the power.
v A power outage or emergency situation occurs (see “Performing an emergency
shutdown” on page 38).
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.
2
1
Use this procedure to turn off the power:
1. Before proceeding, use the storage-management software to determine the
status of the system components and special instructions. The operating system
software might require you to perform other procedures before you turn off the
power.
2. Use the storage-management software to check the status of the storage
server. Correct problems that are reported before you turn off the power.
3. Perform the following steps:
a. Stop all I/O activity to the storage server and attached expansion units.
Make 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.
36 IBM TotalStorage FAStT600 Fibre Channel Storage Server: Installation and User’s Guide