Document revision date: 30 March 2001

Chapter 17
17	Performance Considerations
17.1	Understanding Performance Management
17.2	Knowing Your Work Load
17.3	Choosing a Work Load Management Strategy
17.4	Distributing the Work Load
17.5	Understanding System Tuning
17.6	Predicting When Tuning Is Required
17.7	Evaluating Tuning Success
17.8	Choosing Performance Options
17.9	Using INSTALL to Install Known Images
17.9.1	Understanding Images and Known Images
17.9.2	Understanding Known File Entries
17.9.3	Understanding Attributes You Can Assign to Known Images
17.9.4	Determining Which Images to Install
17.9.5	Installing Images to Improve Image Activation Performance
17.9.6	Installing Images with Shared Address Data
17.9.6.1	System-Provided Images
17.9.6.2	Application Images
17.9.7	Installing Images to Conserve Physical Memory
17.9.8	Installing Images to Enhance Privileges of Images
17.9.8.1	Privileged Executable Images
17.9.8.2	Privileged Shareable Images
17.9.9	Activating Images in a Privileged Context
17.9.10	Specifying File Names in INSTALL
17.9.11	Installing Images with INSTALL
17.9.12	Displaying Known Images with INSTALL
17.9.13	Defining Logical Names for Shareable Image Files
17.9.14	Removing Known Images
Chapter 18
18	Managing File System Data Caches
18.1	Understanding Caching
18.2	Understanding File System Data Caches
18.3	Disabling Caching Clusterwide
18.4	Mounting a Volume With Caching Disabled
18.5	Managing XFC (Alpha Only)
18.5.1	Controlling the Size of the Cache
18.5.1.1	Controlling the Minimum Cache Size
18.5.1.2	Controlling the Maximum Cache Size
18.5.1.3	Enabling a Static Cache Size
18.5.2	Controlling the Maximum Cached I/O Size
18.5.3	Disabling Caching for a File
18.5.4	Disabling Read-Ahead Caching
18.5.5	Monitoring Performance
18.5.5.1	System-Wide Statistics
18.5.6	Using XFC in a Mixed Architecture OpenVMS Cluster
18.6	Managing the Virtual I/O Cache
18.6.1	Understanding How the Cache Works
18.6.2	Selecting VIOC on an Alpha System
18.6.3	Controlling the Size of the Cache
18.6.4	Displaying VIOC Statistics
18.6.5	Enabling VIOC
18.6.6	Determining If VIOC Is Enabled
18.6.7	Memory Allocation and VIOC
18.6.8	Adjusting VIOC Size
18.6.9	VIOC and OpenVMS Cluster Configurations
Chapter 19
19	Testing the System with UETP
19.1	Overview
19.1.1	Understanding UETP
19.1.2	Summary of How to Use UETP
19.2	Preparing to Use UETP
19.2.1	Logging In
19.2.2	Using the SYSTEST Directories
19.3	Setting Up the Devices to Be Tested
19.3.1	Check Your Devices
19.3.2	System Disk Space Required
19.3.3	How UETP Works on Disks
19.3.4	Prepare Disk Drives
19.3.5	Magnetic Tape Drives
19.3.6	Tape Cartridge Drives
19.3.7	Compact Disc Drives
19.3.8	Optical Disk Drives
19.3.9	Terminals and Line Printers
19.3.10	Ethernet Adapters
19.3.11	DR11--W Data Interface (VAX Only)
19.3.12	DRV11--WA Data Interface (VAX Only)
19.3.13	DR750 or DR780 (DR32 Interface) (VAX Only)
19.3.14	Second LPA11--K Device
19.3.15	Devices That Are Not Tested
19.3.16	OpenVMS Cluster Testing
19.3.17	Testing a Small-Disk System
19.3.18	DECnet for OpenVMS Phase
19.3.19	Vector Processors and the VVIEF (VAX Only)
19.4	Starting UETP
19.4.1	Running a Subset of Phases
19.4.2	Single Run Versus Multiple Passes
19.4.3	Defining User Load for Load Test
19.4.4	Report Formats
19.4.4.1	Long Report Format
19.4.4.2	Short Report Format
19.5	Stopping a UETP Operation
19.5.1	Using Ctrl/Y
19.5.2	Using DCL Commands
19.5.3	Using Ctrl/C
19.6	Troubleshooting: An Overview
19.6.1	Error Logging and Diagnostics
19.6.2	Interpreting UETP Output
19.6.3	Displaying Information on Your Screen
19.6.4	Example Screen Display (VAX Only)
19.6.5	Example Screen Display (Alpha Only)
19.6.6	Defining a Remote Node for UETP Ethernet Testing
19.6.7	Log Files
19.7	Troubleshooting: Possible UETP Errors
19.7.1	Summary of Common Failures
19.7.2	Wrong Quotas, Privileges, or Account
19.7.3	UETINIT01 Failure
19.7.4	UETVECTOR Failure (VAX Only)
19.7.5	Device Allocated or in Use by Another Application
19.7.6	Insufficient Disk Space
19.7.7	Incorrect Setup of an OpenVMS Cluster System
19.7.8	Problems During the Load Test
19.7.9	DECnet for OpenVMS Error
19.7.10	Errors Logged but Not Displayed
19.7.11	No PCB or Swap Slots
19.7.12	No Keyboard Response or System Disk Activity
19.7.13	Lack of Default Access for the FAL Object
19.7.14	Bugchecks and Machine Checks
19.8	UETP Tests and Phases
19.8.1	Initialization Phase
19.8.2	Device Test Phase
19.8.2.1	How the Device Phase Works
19.8.2.2	Running a Single Device Test
19.8.2.3	Format of UETINIDEV.DAT
19.8.2.4	Running a Test in Loop Mode
19.8.2.5	Functions of Individual Device Tests
19.8.3	System Load Test Phase
19.8.4	DECnet for OpenVMS Test Phase
19.8.4.1	Environment
19.8.4.2	How the DECnet Phase Works
19.8.5	Cluster-Integration Test Phase

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