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SPARC T8-4 Server Service Manual

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Updated: January 2022

SPARC T8-4 Server Service Manual

Document Information

Using This Documentation

Identifying Components

Detecting and Managing Faults

Understanding Diagnostics

Diagnostics Process

Checking for Faults

Interpreting LEDs

Log In to Oracle ILOM (Service)

Check for Faults

Interpreting Log Files and System Messages

Check the Message Buffer

View Log Files (Oracle Solaris)

View Log Files (Oracle ILOM)

Configuring POST

Clear a Fault Manually

System Schematic

Related Information

Preparing for Service

Servicing Processor Modules

Servicing DIMMs

Servicing Hard Drives

Servicing the Main Module

Servicing NVMe Switch Cards

Servicing the SPM

Servicing the SCC PROM

Servicing the Battery

Servicing Power Supplies

Servicing Fan Modules

Servicing PCIe Cards

Servicing the Rear I/O Module

Servicing the Rear Chassis Subassembly

Returning the Server to Operation

Language:

Check the Message Buffer

The dmesg command checks the system buffer for recent diagnostic messages and displays them.

Log in as superuser.
Type:
```
# dmesg
```

Related Information

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