How does Amanda ZMC discover tape changers

This article is for Amanda Enterprise (AE)

Amanda Enterprise looks at the device file names that matches patterns /dev/changer*, /dev/sg?, /dev/sg?? and /dev/scsi/changer/* on the Amanda backup server. Device files that are symbolic links are also considered.

For all the device files that are readable and writeable by amandabackup user and matches the above pattern, Amanda uses mtx status command to validate the tape changer file.

If mtx command is successful, the tape changer device file is listed in the Admin Devices page in the Zmanda Management Console.

Users can add tape changer devices that were not discovered manually to ZMC using Other selection in the drop down menu.

Note: Amanda Enterprise works with all tape changers that can be managed using mtx command even if they were not discovered by ZMC.