Tape Drive Load and Unload Test (DRVLDULD)

Tape Drive Load and Unload Test (DRVLDULD)

•  Library Power On Self Test and Initialization
•  Confidence Test
•  SCSI Communications Test (COMM TEST)
•  Move Cartridge Test

This test is similar to the Confidence Test, with the addition of loading and unloading cartridges to the DLT7000 tape drives.
The cartridges are only loaded to the load point and then immediately unloaded. No data is written to the tape cartridges and no data is altered on the tape cartridge.
SCSI commands are initiated by the tape library controller over the SCSI bus.
This test requires a minimum of three cartridges for a tape library with two drives. The following library functions are performed:

•  An inventory of each cartridge is taken and read by the tape library bar code reader and maintained throughout the test.
•  The cartridges are randomly delivered to the DLT7000 tape drives and loaded to the load point by the drives.
   The tape library microcode then initiates a tape drive Unload command over the SCSI bus to the tape drives.
   After the unload is complete, the library retrieves the cartridge from the tape drive and places  the cartridge in a vacant cell.
•  The test continues until any one of the tape library control keys is pressed, an error occurs, or until 100 cycles  have been completed.
   The tape drives are automatically unloaded if the test is terminated, or after 100 cycles have been completed.