By default, you must
have superuser (root) privileges to use the
/opt/VRTS/bin/vxtunefs command. The
vxtunefs command is a tool that lets you change caching policies to enable Cached Quick I/O and change other file system options. Database administrators can be granted permission to change default file system behavior in order to enable and disable Cached Quick I/O. The system administrator must change the
vxtunefs executable permissions as follows:
chown root /opt/VRTS/bin/vxtunefs
chgrp dba /opt/VRTS/bin/vxtunefs
chmod 4550 /opt/VRTS/bin/vxtunefs
Setting the permissions for
/opt/VRTS/bin/vxtunefs to 4550 allows all users in the dba group to use the
vxtunefs command to modify caching behavior for Quick I/O files.
For more information, see the Veritas File System Administrator's Guide.