HP SW TL881 DLT Mini-Lib/1 Compaq StorageWorks TL881/TL891 Family MiniLibrary - Page 70

Operation 2-37 Barcode Labels Barcode labels are included with the MiniLibrary and Expansion Unit. Additional labels can be ordered (see Appendix B). The label slips into the slot adjacent to the write-protect switch on each tape cartridge. The code used can be Code 39, Codebar, 2-of-9, standard 2-of-5, or interleaved 2-of-5, with a length of 8 digits. Minimum element width is 0.03 in (07.5 mm). MiniLibrary System Components There are four basic components in the MiniLibrary system: I The MiniLibrary Base Module I The MiniLibrary Expansion Unit (master) I The MiniLibrary Data Unit I The PTM The Expansion Unit can move media freely within itself and between the MiniLibrary Base Modules and the Data Units via the PTM. In the MiniLibrary system, you can combine modules to provide the right combination of capacity and performance for your requirements. The architecture lets you change or add to the mix of modules to optimize throughput, capacity, or both as your storage requirements change. When connected as a system, the robotics in MiniLibrary Base Modules and Data Units operate from Expansion Unit commands. The host computer(s) are not dependent on the internal geometry of the system, or on the actions or capabilities of any of the slave modules. The Expansion Unit presents, to the host(s), a single SCSI medium changer device with a single SCSI Medium Transport element, several SCSI storage elements equal to the number of cartridge magazine slots, several SCSI import/export elements specified during configuration of the Expansion Unit, and a number of SCSI data transfer elements equal to the total number of drives in the system.