Explanation:

This parameter when set  equal to 1 will allow core files to be created on UNIX and LInux platforms.  This may help resolve cases where processes disappear from the process table.  An additional requirement is the system limit for "core file size" is set sufficiently large. This generally means an unlimited setting is proper as the files can be several gigabytes.

Default:
Not present. 

Recommendation:
Diagnostic tool for first failure detection.  If you can afford the disk space turn it on.

Restrictions:
Requires UNIX/LINUX Soft Limit to be set to several gigabytes or unlimited.