SCSI Commands

5.5LOAD UNLOAD COMMAND (1Bh)

The LOAD UNLOAD command tells the target to load or unload the tape media in the tape cartridge. If no cartridge is in the tape drive, both LOAD and UNLOAD return a CHECK CONDITION status with a NOT READY sense key set. Likewise, if the drive has received an UNLOAD command with the Immediate bit set and then it receives another command that would require tape motion or if it receives a TEST UNIT READY command, the drive returns a CHECK CONDITION STATUS with a NOT READY sense key set.

NOTES

Operation of the UNLOAD version of this command is different if a media loader is present.

Two modes of operation are possible if a media loader is configured. If none of the media loader-specific commands have been issued, the device operates in the sequential mode of operation described below. Once a media loader-specific command has been issued, however, the sequential mode of operation is disabled and the UNLOAD command becomes a NO OPERATION.

If the tape drive is in the default sequential mode of operation and an UNLOAD command is received by the subsystem, the current cartridge is unloaded and automatically moved to the magazine slot from which it was received. The cartridge from the next magazine slot (if the slot is not empty) automatically moves from the magazine into the drive, is loaded, and made ready. If the next magazine slot is empty, no CHECK CONDITION status is created.

When the cartridge is unloaded into the last magazine slot, the subsystem does not cycle back to slot 0. This prevents accidental overwriting of data when using a media loader subsystem in sequential auto-loading mode. The next cartridge in the cycle must be selected and loaded manually, or with a SCSI MOVE MEDIUM command.

Quantum DLT 7000 Tape System

5-27

Page 130 Page 132
Page 131
Image 131
Quantum Instruments DLT 7000 manual Load Unload Command 1Bh
Page 130 Page 132

DLT 7000 specifications

The Quantum Instruments DLT 7000 is a state-of-the-art battery-powered light that brings advanced photography and videography offerings to professionals and enthusiasts alike. Renowned for its compact design, the DLT 7000 combines lightweight portability with powerful functionality. It is engineered to enhance the creative process by providing optimal lighting solutions in a variety of settings.

One of the standout features of the DLT 7000 is its innovative LED technology. This light source offers consistency in color temperature and output, ensuring high-quality illumination for both photo and video applications. The unit boasts an impressive color accuracy with a CRI (Color Rendering Index) rating that exceeds 90, making it ideal for capturing true-to-life colors in any situation. The DLT 7000 allows users to adjust the color temperature from a warm 3200K to a cool 5600K, catering to different lighting needs and environments.

Moreover, the DLT 7000 features a dimming function that allows for seamless adjustments from 0 to 100% brightness. This level of control not only aids in achieving the perfect exposure but also helps in creating the desired mood or atmosphere for a shot. The robust design of the DLT 7000 includes durable construction material that can withstand the rigors of location shoots, making it a reliable tool for professionals.

In addition to its lighting capabilities, the DLT 7000 incorporates smart technology. It is equipped with a built-in wireless control system that allows users to adjust settings from a distance, promoting flexibility during shoots. This wireless functionality extends to multiple units, enabling synchronized lighting setups for complex scenes.

Another notable characteristic of the DLT 7000 is its versatile power options. The light can operate on lithium-ion batteries, ensuring long-lasting performance during extended shoots without the constraint of power outlets. There is also an option for AC power, providing users flexibility in various shooting locations.

In summary, the Quantum Instruments DLT 7000 stands out with its combination of advanced LED technology, adjustable color temperatures, built-in dimming capabilities, and smart wireless controls. Whether for professional photography or videography, this light is designed to meet the demands of the most discerning artists, making it an essential addition to any lighting kit.
Top Page Image Contents