HP Disk System 2300 HP StorageWorks Disk System 2300 User's Guide(This manual - Page 104

Isolating Faults, The PDU/PDRU is defective.

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Isolating Faults Table 12 lists the probable causes and solutions for problems you may detect on the disk system. When more than one problem applies to your situation, investigate the first description that applies. The table lists the most basic problems first and excludes them from subsequent problem descriptions. Table 12. Troubleshooting Table Problem HW Event LED Description Category State STM Status Probable Cause/Solution Installed none product does not power on System none power LED off Neither power cord is plugged in. The power switch is not pressed. AC breaker is tripped. AC power source has failed. The PDU/PDRU is defective. Power switch is defective. A faulty component is causing power supplies to turn off. Remove all components and reinsert one at a time until the faulty component is isolated. System fault none LED is on Power supply LED off Power One power supply is not functional. supply Not The PDU/PDRU or primary power Available source has failed. Critical Part fault Critical LED on A component has failed. See problem descriptions below. Audio alarm none when BCC installed BCC Fault Disk Not BCC DIP switch settings do not flashing Available match peer BCC switch settings. Reset switches. Improper cable/terminator connections BCC Fault LED is on Critical BCC Fault Critical on BCC hardware is faulty. Replace the BCC. 104 Troubleshooting

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104
Troubleshooting
Isolating Faults
Table 12 lists the probable causes and solutions for problems you may detect on
the disk system. When more than one problem applies to your situation,
investigate the first description that applies. The table lists the most basic
problems first and excludes them from subsequent problem descriptions.
Table 12.
Troubleshooting Table
Problem
Description
HW Event
Category
LED
State
STM
Status
Probable Cause/Solution
Installed
product does
not power on
none
System
power
LED off
none
Neither power cord is plugged in.
The power switch is not pressed.
AC breaker is tripped.
AC power source has failed.
The PDU/PDRU is defective.
Power switch is defective.
A faulty component is causing
power supplies to turn off. Remove
all components and reinsert one at
a time until the faulty component is
isolated.
System fault
LED is on
none
Power
supply
LED off
Power
supply Not
Available
One power supply is not functional.
The PDU/PDRU or primary power
source has failed.
Critical
Part fault
LED on
Critical
A component has failed. See
problem descriptions below.
Audio alarm
when BCC
installed
none
BCC Fault
flashing
Disk Not
Available
BCC DIP switch settings do not
match peer BCC switch settings.
Reset switches.
Improper cable/terminator connections
BCC Fault
LED is on
Critical
BCC Fault
on
Critical
BCC hardware is faulty.
Replace the BCC.