QIO Configuration and Management Manual

QIO Configuration and Management Manual—424717-008
1
Legal Notices 1
Legal Notices 1
What’s New in This Manual v
Manual Information v
New and Changed Information v
About This Manual vii
Who Should Use This Manual vii
How This Manual Is Organized vii
Where to Get More Information vii
NonStop S-Series Configuration and Management Manuals x
Notation Conventions xv
Abbreviations xix
1. Introduction to QIO
Subsystem Architecture 1-3
QIO Subsystem Requirements 1-4
Servers Supported 1-4
ServerNet LAN Systems Access (SLSA) Subsystem 1-4
Configuration and Management Tools 1-4
DSM/SCM 1-5
NonStop Kernel Subsystem 1-5
Event Management Service (EMS) 1-5
QIO SCF Subsystem 1-6
SCF and the QIO Subsystem 1-7
Subsystem Functions 1-8
Client Process Initialization 1-9
Inbound Data Flo
w 1-10
Outbound Data Flow 1-11
Client Process Termination 1-11
2.
Configuring the QIO Subsystem
Overview 2-1
A
ssumptions 2-1
Understanding QIO Memory Configuration
2-2
User
-Addressable Data Space 2-2
Process Globals and Process Heap Space
2-3
QIO Shared Flat Memory and QIO IOperm Segment 2-4
Flat Segment Memory Space and Unassigned Flat Memory Space
2-4
Memory Management 2-5