User's Guide
Chapter 3 Emulated DLT7000 SCSI Commands
Mode Select (6 /10) (15h / 55h)
184 Quantum DX-Series Software Interface Guide
Table 140 Disconnect 
/ Reconnect 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.
Buffer Full 
Ratio
Not supported. Any value is ignored.
Buffer 
Empty Ratio
Not supported. Any value is ignored.
Bus 
Inactivity 
Limit
Not supported. Any value is ignored.
Disconnect 
Time Limit
Not supported. Any value is ignored.
Connect 
Time Limit
Not supported. Any value is ignored.
Maximum 
Burst Size
This value specifies the maximum amount of data 
that will be transferred without disconnecting. A 
value of 0 sets no limit. Any value is in units of 512 
bytes. For example, a value of 8 represents 4 Kbytes. 
Values that are not multiples of 8 are rounded up to 
the closest multiple of 8.










