DOCUMENTATION: When adding a new drive of type LTO4/Ultrium 4, there is no drive type of HCART4 or media of type 1/2" cartridge tape 4.
StorageTek SL500 tape library
IBM Ultrium-TD4, Model 7381 tape drives
The Ultrium-TD4 is supported as a drive type HCART during detection of this drive with the "Configure Storage Devices" wizard. When adding media for this drive type with the "Configure Volumes" wizard, the correct media type is "1/2" cartridge tape." NetBackup supports three different media densities for each tape library controlled drive type, TL(X), when those drive types have multiple densities. When a fourth evolution of a density is released for a drive type, the density nomenclature used by NetBackup rolls back to the first density type. The correct drive type and media density selected for a drive should be the type suggested by the NetBackup Administration GUI wizard.