How the dumpadm Command Works

During system startup, the dumpadm command is invoked by the svc:/system/dumpadm:default service to configure crash dumps parameters.

Specifically, dumpadm initializes the dump device and the dump content through the /dev/dump interface.

After the dump configuration is complete, the savecore script looks for the location of the crash dump file directory. Then, savecore is invoked to check for crash dumps and check the content of the minfree file in the crash dump directory.