SCSI Commands

WRITE BUFFER Command (3Bh) (continued)

5.26.3 Download Microcode Mode (100b)

Using buffer offsets, the host can download the firmware image into the target’s buffer in pieces. These commands do not cause the new image to become active. A Download and Save Mode WRITE BUFFER command must be issued for the image to become active.

The tape drive must be empty of tape medium to allow downloading of an image. This is a safeguard against accidentally starting a firmware update. If a tape cartridge is loaded when all or part of a firmware image has been downloaded, another WRITE BUFFER with Download Microcode mode will be rejected. The firmware image must be downloaded in integral multiples of 8K bytes.

Any error on a WRITE BUFFER command causes any downloaded image data to be discarded and the download must be restarted from the beginning.

CAUTION

During the actual reprogramming of the FLASH EEPROM, if any type of powerfail occurs, or if the reprogramming fails before completion, the tape drive subsystem becomes unusable and the tape drive must be replaced.

5.26.4 Download Microcode and Save Mode (101b)

This mode is used to download and save the entire image at once, or to download the image and save it, or to cause a save operation after the image data has been downloaded using the Download Microcode mode (without the Save). This mode of the WRITE BUFFER command causes the image data to be verified and the Flash EEPROM firmware area to be updated. During the reprogramming of the Flash EEPROM, the WRITE PROTECT and Drive Activity LED’s on the drive’s front panel blinks. Also, when it is updating the EEPROM, it disconnects from the SCSI bus and will not respond until the update is complete.

When the Save operation is successfully completed, the firmware restarts itself, causing the Power On Self Test (POST) to be run, and two UNIT ATTENTION conditions are generated: POWER UP RESET and OPERATING CODE HAS CHANGED.

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Quantum DLT 7000 Tape System

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Quantum Instruments DLT 7000 manual Download Microcode Mode 100b, Download Microcode and Save Mode 101b

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.

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