Another essential task involves preparing to handle system problems and troubleshooting system problems that occur. A system crash can occur due to hardware malfunctions, I/O problems, or software errors. If a system crashes, it will display an error message on the system console and write a copy of its physical memory to the dump device. The system will then reboot automatically. Also, when a process terminates abnormally, a core file is generated that you can examine. You can customize the default processes that create crash dump files and core files. And, you can use various Oracle Solaris tools including the crash dump files and core files to investigate what has caused a specific problem and to make corrections to the system.
For further information, see Troubleshooting System Administration Issues in Oracle Solaris 11.3.
Additional tools are available for troubleshooting. The Oracle Solaris operating system includes an architecture for building and deploying systems and services that are capable of predictive self-healing. The Fault Management Architecture (FMA) receives data related to errors, automatically diagnoses the problems, and attempts to take faulty components offline.
For information about fault management, see Managing Faults, Defects, and Alerts in Oracle Solaris 11.3.