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.SHMDJOXSHM files in /tmp

edited Jul 15, 2013 7:42PM in Database Administration (MOSC) 3 commentsAnswered
Oracle 11.2.0.3 running on Solaris 5.10.

Whether it is from a database created under Oracle 11g, or from an 11g database upgraded from 10g (in this case 10.2.0.4), there are files in /tmp named .SHMDJOXSHM_EXT_nn_dbname_36*, where nn is a number starting with zero, and dbname is the name of the database in uppercase.  What are these files?  What is writing these files to /tmp?  What are these files used for?  Must they be created in order for the database to run efficiently?  Is there a parameter to turn off their creation?  Must they be written to /tmp, or can they be written somewhere else?  ANY information

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