Chapter 5. Solving Problems - IBM EXP3000 Manual

Chapter 5. Solving problems

The following table contains troubleshooting information to help you solve some
basic problems that you might have with the EXP3000.
Table 5. Troubleshooting information
Component Problem indicator
Hard disk drive Amber fault LED lit
ESM
Front panel
All components All green LEDs off
Hard disk drives Amber fault LED
flashing
Power supply Amber fault LED lit;
green dc power LED
off
Power supply Amber fault LED lit;
green ac power LED
off
ESM Link fault amber LED
lit
© Copyright IBM Corp. 2007
Possible cause Possible solutions
Drive failure Replace the failed hard disk drive. See "Replacing a
hot-swap hard disk drive" on page 28.
Board failure Replace the failed ESM. See "Replacing an ESM"
on page 29.
General machine A status or fault LED somewhere on the EXP3000
fault is lit. Check for amber LEDs on components. See
Chapter 3, "EXP3000 controls, LEDs, and power,"
on page 17.
The EXP3000 is Make sure that all EXP3000 power cables are
turned off connected and that the power is on. If applicable,
make sure that the main circuit breakers for the rack
are turned on.
ac or dc power Check the main circuit breaker and ac or dc outlet.
failure
Power-supply Replace the power supply. See "Replacing a
failure hot-swap power supply" on page 30.
Midplane failure Have the EXP3000 serviced.
Drive rebuild or No action is required.
identity in process
Power supply
1. Install four or more hard disk drives, turn off the
failure; power
power, and turn it on again.
supply turned off;
2. If the power-supply switch is on, turn off the
minimum hard disk
power supply and then turn it on again. If the
drives not installed
condition remains, replace the power supply.
See "Replacing a hot-swap power supply" on
page 30.
No ac power to Check the ac power cord or breaker.
power supply
v If ac power is good at the source, replace the
power cord.
v If the power supply has failed, replace the power
supply. See "Replacing a hot-swap power supply"
on page 30.
SAS
1. Reconnect the SAS cable.
communication
2. Replace the SAS cable.
failure
3. If the LED is still lit, replace either the ESM or
the controller or device into which the other end
of the SAS cable is connected.
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