Joords Oracle DBA blog

Oracle 11gR2 ASM supports a new type of file called a “volume file” which may be created in its own DISK GROUP or which may share space in another disk group. Volume files are externalised to the Unix operating system by the oracleadvm device driver and appear dynamically as special files in the /dev/asm directory.

tnsManager is a more robust alternative to using file shares or SMS for centralized tnsnames distribution and management.A perfect tool for centralization of the TNSNAMES.ORA Simply place tnsManager into a directory with a tnsnames.ora and it will serve it to your client workstations using LDAP. No additional workstation software is required, and best of all it's completely free! tnsManager is basically a very compact and focussed LDAP server; in fact all it has been designed to do is serve tnsnames - nothing else. Because of this, it requires very few system resources and it is extremely simple to configure - it usually takes less than 10 minutes to install!