Data Compression Page - Tandberg Data SLR7-140 PROGRAMMER Manual

BYTE BIT 7
00 PS
01 Page Length = 0Eh
02 DCE
03 DDE
04
 Compression Algorithm
07
08

Decompression Algorithm
11
12 RESERVED
13 RESERVED
14 RESERVED
15 RESERVED
Table 14-17:
PS
Page Code
Page Length
DCE
DCC
Tandberg Data
14.3.6.

Data Compression Page

This page is
configurations.
The page can be saved.
6 5
R Page Code = 0Fh
DCC RESERVED
RED
Data Compression Page Descriptor
The Parameter Savable (PS) bit must be set to zero.
This field is always set to 0Fh.
This field must be set to 0Eh.
A Data Compression Enable (DCE) bit of one indicates
that the data compression is enabled. When this bit is
set, data sent to the Drive by the initiator shall be
processed using
before being written to the medium. A DCE bit of zero
indicates that the data compression is disabled. The
DCE-bit can only be set to one if the DCC-bit indicates
that the Drive supports data compression.
Legal values are 0 and 1.
The default (factory programmed) value is 1.
A Data Compression Capable (DCC) bit of one indicates
that the Drive supports data compression. A DCC bit of
zero indicates that the Drive does not support data
compression. This bit does only make sense for the Mode
Sense command. This bit is not changeable.
14-18 Tandberg SLR Product Line SCSI Functional Specifications
used to specify
4 3
RESERVED
the selected
Mode Select
data compression
2 1
Compression Algorithm
0