SCSI Commands

MODE SELECT (6) / (10) Command (15h) / (55h) (continued)

Table 5–43 Data Compression Page Descriptor - Field Descriptions

Field Name

Description

 

 

Page Code

The Page Code identifies the type of MODE SELECT page being transferred. A

 

value of 0Fh identifies this as the Data Compression page.

Page Length

The Page Length field indicates the number of bytes in the Data Compression

 

page that follow this byte. The valid value for this byte is 0Eh.

DCE

Data Compression Enable. This bit specifies whether the tape drive should

 

enable or disable data compression. When set to 1, the drive starts in

 

compressed format.

DCC

Data Compression Capable. This bit is used by the MODE SENSE command to

 

indicate that the tape drive supports data compression.

DDE

Data Decompression Enable. Must be set to 1. When the tape drive reads

 

compressed data from tape, it automatically decompresses the data before

 

sending it to the initiator. Data compression must always be enabled.

RED

Report Exception on Decompression. The tape drive does not report exceptions

 

on decompression (boundaries between compressed and uncompressed data).

 

The RED field must be 00h.

Compression

The Compression Algorithm field indicates which compression algorithm the

Algorithm

tape drive will use to process data from the initiator when the DCE bit (byte 02,

 

bit 7) is set to 1. The only value currently supported for this field is 10h.

 

NOTE: Specifying a value other than 10h for this field causes the tape drive to

 

return CHECK CONDITION status, sense key set to ILLEGAL REQUEST. However, if

 

EEPROM parameter EnaRepDecomp is set, the parameter in this field is ignored

 

and no CHECK CONDITION status is returned.

Decompression

The Decompression Algorithm field indicates which decompression algorithm

Algorithm

the tape drive will use when decompressing data on the tape. The only value

 

currently supported is 10h.

 

NOTE: Specifying a value other than 10h for this field causes the tape drive to

 

return CHECK CONDITION status, sense key set to ILLEGAL REQUEST.

 

 

Quantum DLT 7000 Tape System

5-81

Page 184 Page 186
Page 185
Image 185
Quantum Instruments DLT 7000 manual Data Compression Page Descriptor Field Descriptions, Dcc, Dde, Red
Page 184 Page 186

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