Switching Off The Storage Unit - IBM TotalStorage 200i Installation And User Manual

3. Switch on each device, based on this power-on sequence.
4. Switch on both power supplies on the back of the unit.

Switching off the storage unit

Attention:
LEDs are lit on the storage unit. Correct the fault before you attempt to turn off the
power, using the proper troubleshooting or servicing procedure. This will ensure that
the storage unit will turn on correctly later. Refer to "Troubleshooting" on page 31.
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.
The storage unit is designed to run continuously, 24 hours a day.Turn off the power
only when at least one of the following is true:
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 "Switching off the storage
Use the following procedure to turn off the storage unit:
1. Power down the server attached to the storage unit.
2. Make sure that all amber fault LEDs are off. If any fault LEDs are lit (drives,
3. Turn off both power supplies.
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IBM TotalStorage IP Storage 200i Storage Unit Installation and User's Guide
Note: Be sure to switch on the storage unit before or at the same time as you
switch on the server.
The storage unit might take a few seconds to switch on. During this time, you
might see the fault (amber) and the power (green) LEDs on the storage unit turn
on and off intermittently. When the power-on sequence is complete, only the
power (green) LEDs on the front and back should remain on. If one or more
fault (amber) LEDs remain lit, refer to "Troubleshooting" on page 31.
Attention: If you have data stored on the drives, label the drives before you
remove them. Then, when you replace the drives, install each one in the same
drive bay from which you removed it. Failure to do so will result in a loss of
data.
Except in an emergency situation, never turn off the power if any fault
power.
unit in an emergency" on page 19.
power supplies, or ESM boards), correct the problem before you turn off the
power. For guidance, refer to "Troubleshooting" on page 31.