Reference Guide

Chapter 4 SCSI Commands
MODE SELECT (6) / (10) Command (15h / 55h)
DLT-S4 Interface Reference Guide 106
Table 66 Read / Write Error
Recovery MODE SELECT
Page — Field Descriptions
Disconnect / Reconnect
Page (02h)
4
The Disconnect/Reconnect Page controls the drive’s behavior on the SCSI
bus or network and allows the host to tune bus or network performance
(for Parallel SCSI, see figure 58
; for Fibre Channel, see figure 59; and for
SAS, see figure 60
).
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 01h
identifies this as the Read / Write Error Recovery Page.
Page Length Indicates the number 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.
TB Transfer Block. Must be set to 1.
EER Enable Early Recovery. Must be set to 1.
PER Post Error. Default is 0. When set to 1, enables reporting of
CHECK CONDITION to
report recovered
READ / WRITE errors.
DTE Disable Transfer on Error. Must be set to 0.
DCR Disable ECC Correction. Must be set to 0.
Read Retry Count This field reports the maximum number of read retries the drive attempts before
reporting an unrecoverable error.
Write Retry Count This field reports the maximum number of write retries the drive attempts before
reporting an unrecoverable error.