Table 110 Data Compression Control Mode Page (0Fh) - Field Descriptions - Quantum LTO 2 User Manual

Table 110 Data Compression
Control Mode Page (0Fh) —
Field Descriptions
LTO-2 SCSI Interface Guide
Bits 7
Byte
(MSB)
8–11
12
13
14
15
Field Bytes
Page Code 0
Additional 1
Page
Length
DCE 2
DCC 2
DDE 3
6 5 4
Decompression Algorithm
Reserved
Reserved
Reserved
Reserved
Bits Description
0-5 Always 0Fh, indicating the Data
Compression Control Page.
Always 0Eh, indicating that 14 parameter
bytes follow the Page Length byte.
7 0 = Data compression is disabled.
1 = Data Compression is Enabled (DCE)
(default). The drive compresses data
before writing to tape.
6 Always 1, indicating that the drive is
Data Compression Capable (DCC).
7 0 = Data decompression is disabled.
Compressed data is not decompressed
before it is transferred to the host.
1 = Data Decompression is Enabled
(DDE) (default). The drive decompresses
compressed data before sending it to the
host.
Chapter 2 SCSI Commands
MODE SELECT Command
3 2 1 0
(LSB)
134