8.12.1.2 TL881 and TL891 MiniLibrary Rackmount Components
A TL881 or TL891 base unit (which contains the tape drive(s)) can operate as an independent, standalone unit, or in concert with an expansion unit and multiple data units.
A rackmount
•MiniLibrary Expansion unit — the MiniLibrary expansion unit enables multiple TL881 or TL891 modules to share data cartridges and work as a single virtual library. The expansion unit also includes a
The expansion unit integrates the robotics in the individual modules into a single coordinated library robotics system. The expansion unit assumes control of the media, maintaining an inventory of all media present in the system, and controls movement of all media. The tape cartridges can move freely between the expansion unit and any of the base units or data units via the system’s robotically controlled
The expansion unit can control up to five additional attached modules (base units and data units) to create a multimodule rackmount configuration. The expansion unit must be enabled to control the base unit by setting the base unit to slave mode. The data unit is a passive device and only works as a slave to the expansion unit. To create a multimodule rackmount system, there must be one expansion unit and at least one base unit. The expansion unit has to be the top module in the configuration.
The expansion unit works with either the TL881 or TL891 base unit.
•TL881 or TL891 base unit — includes library robotics, bar code reader, a removable
–TL881 — DLT 20/40
–TL891 — DLT 35/70
To participate in a MiniLibrary configuration, each base unit must be set up as a slave unit to pass control to the expansion unit. Once the expansion unit has control over the base unit, the expansion unit controls
_____________________ Note _____________________
You cannot mix TL881 and TL891 base units in a rackmount configuration because the tape drives use different formats.
