What to Do If the System Crashes

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In the event of a system crash:

Note down the system console messages.

If a system crashes, making it run again might seem like your most pressing concern. However, before you reboot the system, examine the console screen for messages. These messages can provide some insight about what caused the crash. Even if the system reboots automatically and the console messages have disappeared from the screen, you might be able to check these messages by viewing the /var/adm/messages system error log file. For more information about viewing system error log files, see Viewing System Messages and Logging.
If you have frequent crashes and cannot determine the cause, gather all of the information you can from the system console or the /var/adm/messages file and have it ready for a customer support representative to examine.

For a complete list of troubleshooting information to gather for your service provider, see Checklist for Troubleshooting a System Crash.
Check to see if a system crash dump was generated after the system crash.

Caution - Do not remove important system crash information until it has been sent to your customer support representative.
If the system fails to boot after a system crash, see Shutting Down and Booting a System for Recovery Purposes in Booting and Shutting Down Oracle Solaris 11.3 Systems for further instructions.