Reference Guide

Chapter 4 SCSI Commands
MODE SELECT (6) / (10) Command (15h / 55h)
DLT-S4 Interface Reference Guide 110
Table 68 Fibre Channel —
Disconnect / Reconnect MODE
SELECT Page — Field
Descriptions
Field Description
PS Parameters Savable. For
MODE SELECT, must be set to 0.
SPF SubPage Format. Always set to 0. Indicates that this page uses the page_0 page
format.
Page Code Identifies the type of
MODE SELECT page being transferred. A value of 02h
identifies this as the Disconnect / Reconnect Page.
Page Length Indicates the number of bytes in the page, excluding 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.
Buffer Full Ratio Must be set to 0.
Buffer Empty Ratio Must be set to 0.
Bus Inactivity Limit Must be set to 0.
Disconnect Time
Limit
Must be set to 0.
Connect Time Limit Must be set to 0.
Maximum Burst
Size
Indicates the maximum amount of data that will be transferred without
disconnecting, in units of 512 bytes. The default value is 80h for 64 KBytes.
EMDP Enable Modify Data Pointers. Must be set to 0. The drive does not support
reordering FCP_Data IU frames for a single SCSI command.
FAA Fair Arbitration: Fair Access Read. Must be set to 0. The drive always uses the
access fairness algorithm when it sends FCP_Data IU frames to the host.
FAB Fair Arbitration: Fair Access Write. Must be set to 0. The drive always uses the
access fairness algorithm when it sends FCP_Xfer_Rdy frames to the host.
FAC Fair Arbitration: Fair Access Status. Must be set to 0. The drive always uses the
access fairness algorithm when it sends FCP_Rsp frames to the host.
First Burst Size Must be set to 0.