Reference Guide

Chapter 2 Task Management
Task Management by Transport Layer Overview
DLT-S4 Interface Reference Guide 6
Task Management by Transport Layer Overview 2
Table 1 shows the task management function and its specific
characteristics by transport layer.
Table 1 Task Management by
Transport Layer
Task
Management
Function Fibre Channel
Serial Attached
SCSI
Parallel SCSI
Information Units
Parallel SCSI
Non-Information
Units
ABORT TASK
Basic Link Service
BLS ABTS (81h)
Task Mgmt
Flag=01h
Task Mgmt
Flag=01h
or
Message Out=0Dh
Message Out=0Dh
ABORT TASK SET
Task Mgmt
Flag=02h
Task Mgmt
Flag=02h
Task Mgmt
Flag=02h
Message Out=06h
CLEAR TASK SET
Task Mgmt
Flag=04h
Task Mgmt
Flag=04h
Task Mgmt Out=04h Message Out=0Eh
LOGICAL UNIT
RESET
Task Mgmt
Flag=10h
Task Mgmt
Flag=08h
Task Mgmt Out=08h Message Out=17h
TARGET RESET
Task Mgmt
Flag=20h
N/A
Task Mgmt
Flag=20h
or
Message Out=0Ch
Message Out=0Ch
QUERY TASK N/A
Task Mgmt
Flag=80h
N/A N/A