If a Solaris system crashes (panic) it is possible to write the entire contents of memory to disk for later analysis.
A crash dump is a snapshot of the physical memory, saved on disk, at the time that a fatal system error occurs.
Core files are created when a program or an application terminates abnormally and are by default eritten to the current working directory.
savecore under solaris 2.6 fails with 2GB or larger swap partitions
Whatever the cause, the crash dump itself provides invaluable information to a support engineer to aid in diagnosing the problem.