Troubleshooting guide
Status Codes
120 NetBackup Troubleshooting Guide - UNIX
Recommended Action:
1. For additional information, check the following:
◆ NetBackup Problems report
◆ System log (UNIX)
◆ Event Viewer Application log (Windows NT/2000)
2. Typically, this status code indicates a drive configuration problem that allows more
than one process at a time to open the device.
On UNIX, the problem could be due to:
◆ Two (or more) devices were configured that are really the same physical device
(for different densities perhaps). Verify that none of the /dev files used for these
devices have the same major or minor numbers.
◆ Links exist in the file system that are allowing users access to the drives.
◆ The configuration for the drives was modified (in the administrator interface or
vm.conf) and the Media Manager device daemon, ltid, was not restarted.
Verify the configuration and start ltid.
On Windows NT/2000, the problem could be that the Media Manager device
configuration was modified but the NetBackup Device Manager service was not
restarted. Verify the configuration and restart the NetBackup Device Manager service.
3. Make sure the tapes are not write protected.
4. For detailed troubleshooting information:
a. Create an activity log directory for bpdm (if the device is disk) or bptm (if the
device is tape).
b. On UNIX, restart ltid in the verbose mode by executing:
/usr/openv/volmgr/bin/ltid -v
Or, add a VERBOSE entry to the Media Manager configuration file,
/usr/openv/volmgr/vm.conf. Create the vm.conf file if necessary.
c. On Windows NT/2000, enable verbose logging by adding VERBOSE on a line by
itself in the install_path\Volmgr\vm.conf file. Then, stop and restart the
NetBackup Device Manager service.
d. Retry the operation and check the resulting activity log files.










