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
Note
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.