Optical Drive and Library SCSI-2 Command Reference

SCSI-2 Drive Command Set
Mode Sense (Group 0) Command (1AH)
Chapter 2 2-59
SCSI-2 Drive Commands
Disconnect-Reconnect Page 02H
The disconnect-reconnect page provides the initiator the means to tune
the performance of the SCSI bus.
PS The Parameters Savable bit of 1 indicates this
parameter page is savable in non-volatile RAM.
Buffer Full
Ratio This field has no effect on the drive.
Buffer Empty
Ratio This field has no effect on the drive.
Maximum
Burst Size This field indicates the maximum amount of data that
the target transfers during a data phase before
disconnecting if the initiator has granted the disconnect
privilege. This value is expressed in increments of 512
bytes (e.g. a value of one means 512 bytes, two means
1024 bytes, etc.). A value of zero indicates there is no
limit on the amount of data transferred per connection.
Table 2-52 Disconnect-Reconnect Page 02H
Byte 7 6 5 4 3 2 1 0
0 PS
(1)
Rsvd
(0)
Page Code (02H)
1 Page Length (0EH)
2 Buffer Full Ratio
3 Buffer Empty Ratio
4-9 Reserved (0)
10 Maximum Burst Size (MSByte)
11 Maximum Burst Size (LSByte)
12-15 Reserved (0)