Quantum 1200 Series DAT Autochanger Guia do Utilizador descarregar pdf (Página 163)

SDLT 600 SCSI Interface Guide Chapter 4: SCSI Commands

81-81200-02 REV A01 January 2005 4-121

DDE Data Decompression Enable. The value the drive returns indicates

whether data decompression is enabled or not.

Always set to 1. When the drive reads compressed data from tape, it

automatically decompresses the data before sending it to the host.

RED Report Exception on Decompression. The drive does not report

exceptions on decompression (boundaries between compressed and

decompressed data). The drive always returns 00h.

Compression

Algorithm

The value for this field is 10h, indicating that the Lempel-Ziv high-

efficiency data compression algorithm is in use.

Decompression

Algorithm

The value for this field is 10h, indicating that the Lempel-Ziv high-

efficiency data decompression algorithm is in use. If EEPROM parameter

EnaRepDCcomp is set, the drive reports a value of 0 if the last block read

is not decompressed.

Table 4-68. Data Compression MODE SENSE Page — Field Descriptions (Continued)

Field Name Description

1 2 ... 158 159 160 161 162 163 164 165 166 167 168 ... 293 294

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