User's Guide

Chapter 3 Emulated DLT7000 SCSI Commands
Mode Select (6 /10) (15h / 55h)
192 Quantum DX-Series Software Interface Guide
Table 146 Device
Configuration Page -
Field Descriptions
Field Name Description
PS Parameters Savable. For MODE SELECT, this bit
must be 0.
Additional
Page Length
This field indicates the number bytes in the page.
However, the value does not include bytes 0 and 1.
The length is returned in MODE SENSE commands
and must subsequently be set to the same value
when performing MODE SELECT. If the page
length does not match that expected by the drive, a
CHECK CONDITION status is returned, sense key
set to ILLEGAL REQUEST.
The drive returns a CHECK CONDITION status
with sense key set to ILLEGAL REQUEST if it
receives an unsupported Page Code or a Page field
with values not supported or changeable. In such
cases, no parameters are changed as a result of the
command.
CAP Change Active Partition. Not supported; must be 0.
CAF Change Active Format. Not supported; must be 0.
Active
Format
Not supported. Must be 0.
Active
Partition
Only partition 0 is supported. Setting this field to
any other value causes rejection by the drive with a
CHECK CONDITION status, sense key ILLEGAL
REQUEST set.
Write Buffer
Full Ratio
The drive sets this field to 0. The drive uses an
automatic adaptive mechanism to adjust its Full
Ratio according to the average data rates over the
SCSI bus.
Read Buffer
Empty Ratio
The drive sets this field to 0. The drive uses an
automatic adaptive mechanism to adjust its Empty
Ratio according to the average data rates over the
SCSI bus.