The IBM® Tape Device Driver settings have been changed to not automatically reserve the drive. By allowing TSM to manage the reservations this will elminate some reservation warnings and potential mount failures. This is a one time change that requires the device driver to be re-initalized. Reinitalizing the device driver can be accomplished by either restarting windows or reinstalling the IBM Tape Device Driver. Restarting windows is simpler; reinstalling the IBM Tape Device Driver is less disruptive.
Possible reservation conflicts between hosts.
Restart windows or reinstall the IBM Tape Device Driver to cause the IBM Device Driver to detect the registry change.