You can rename the media server’s storage devices.
Backup-to-disk folder names must not exceed 128 characters. The backup-to-disk path name, which includes the backup-to-disk folder name, must not exceed 512 characters.When you use the Backup Exec Rename option to rename a backup-to-disk folder, the name changes in Backup Exec, but not on the disk.
You can also change the name of the Windows folder in Windows Explorer.
See Changing the path of a backup-to-disk folder.
The default All Devices device pool cannot be renamed, but you can rename any user-created device pool using either the Rename option or the device pool’s Properties dialog box.