Diagnosing And Rectifying Faults; Fault Diagnosis Rules - Huawei TaiShan Troubleshooting Manual

TaiShan Servers
Troubleshooting
5

5.1 Fault Diagnosis Rules

5.2 Using Tools to Diagnose Faults
5.3 Handling Alarms
5.4 Using Error Codes to Locate Faults
5.5 Using Indicators to Locate Faults
5.6 Handling Faults Based on Symptoms
5.1 Fault Diagnosis Rules
● Obtain the customer's written authorization before performing any operation.
● Before performing any operation, ensure that service data will not be lost or
Observe the following fault diagnosis rules:
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Issue 12 (2022-08-30)

Diagnosing and Rectifying Faults

NO TICE
has been backed up.
Check the external components and then the internal components.
During troubleshooting, check external devices for faults (such as a power
failure and peer device failure) first.
Check the network and then network elements (NEs).
According to the network topology, check whether the network environment
is normal and then check whether the NEs are normal. Determine which NE is
faulty if possible.
Check the high-speed signal alarms and then the low-speed signal alarms.
Alarm signal streams show that high-speed signal alarms often cause low-
speed signal alarms. Therefore, clear high-speed signal alarms first.
Analyze alarms of high severity and then analyze alarms those of low severity.
Analyze critical or major alarms first, and then analyze minor alarms.
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5 Diagnosing and Rectifying Faults
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