Veritas File System 5.1 SP1 Administrator"s Guide (5900-1499, April 2011)

To disable the Oracle Disk Manager feature in an Oracle instance

Shut down the database instance.

Use the rm and ln commands to remove the link to the Oracle Disk Manager

Library.

For Oracle 11g, enter:

For HP Integrity systems, enter:

# rm ${ORACLE_HOME}/lib/libodm9.sl

# ln -s ${ORACLE_HOME}/lib/libodmd9.sl \

${ORACLE_HOME}/lib/libodm9.sl

For HP 9000 systems, enter:

# rm ${ORACLE_HOME}/lib/limodm9.so

# ln -s ${ORACLE_HOME}/lib/libodmd9.so \

${ORACLE_HOME}/lib/libodm9.so

For HP-UX IA

For Oracle 11g, enter:

# rm ${ORACLE_HOME}/lib/libodm11.so

# ln -s ${ORACLE_HOME}/lib/libodmd11.sl \

${ORACLE_HOME}/lib/libodm11.so

For Oracle 10g, enter:

# rm ${ORACLE_HOME}/lib/libodm10.so

# ln -s ${ORACLE_HOME}/lib/libodmd10.sl \

${ORACLE_HOME}/lib/libodm10.so

# rm ${ORACLE_HOME}/lib/libodm9.so

# ln -s ${ORACLE_HOME}/lib/libodmd9.sl \

${ORACLE_HOME}/lib/libodm9.so

Restart the database instance.

Using Cached ODM

ODM I/O normally bypasses the file system cache and directly reads from and

writes to disk. Cached ODM enables some I/O to use caching and read ahead, which

can improve ODM I/O performance. Cached ODM performs a conditional form of

caching that is based on per-I/O hints from Oracle. The hints indicate what Oracle

117Using Veritas Extension for Oracle Disk Manager

Using Cached ODM