QIO Configuration and Management Manual

Contents
QIO Configuration and Management Manual—424717-008
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2. Configuring the QIO Subsystem (continued)
2. Configuring the QIO Subsystem (continued)
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
Situations in Which Addressing Conflicts Can Occur 2-5
Memory Management Considerations 2-5
Other Ways to Manage Memory Space Without Moving QIO 2-6
Before You Begin 2-6
Determining the Maximum Pool Size 2-6
Understanding the Configuration File 2-7
Configuring QIO to Reside in System Data Space 2-9
Setting an Alternate Base Address 2-12
Setting the Size of QIO Memory 2-14
Configuring QIO in Individual Processors 2-16
How to Associate the Configuration File With QIO 2-16
Associating a New Configuration File When One Does not Already Exist 2-16
Changing an Existing Configuration File 2-19
Reverting to an Original Configuration File 2-20
Falling Back to the Default Configuration 2-21
3. Managing the QIO Subsystem
Verifying the Configuration 3-1
Monitoring Subsystem Operations
3-2
Troubleshooting
3-2
Traces
3-3
Subsystem Errors 3-3
Routine Management 3-3
Displaying Object Information
3-3
Managing the Display of Event Messages
3-4
4. QIO Subsystem SCF Commands
Overview 4-1
SCF Commands
4-2
Objects
4-3
States
4-3
How SCF Works 4-4