Tru64 UNIX files: "lkDBNAME" & "sgadefSID.dbf"

Greetings fellow-Listers,

On a couple of our Tru64 Unix machines which still have Oracle 7.3.4 running on them, I have occasionally noticed the following kinds of files in the $ORACLE_HOME/dbs directory :

(1) lkDBNAME

This file is formed by "lk" + the database name. There is a file for each and every database that was ever created on this machine and the file never goes away.

The permissions for each are "--w-------", and is owned by "oracle". There are 0 records in each.

(2) sgadefSID.dbf

This file is formed by "sgadef" + the SID + ".dbf". There is one of these files only for each of the databases that are currently up and running. Each disappears once the corresponding database is brought down.

The permissions for each are "-rw-r-----" and is also owned by "oracle". There are 784 records in each and the contents are binary so there is nothing to be seen by us decimal creatures.

Does anybody know what these are and what their function is?

Thanks very much,

JDamiano

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Author: James Damiano
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