Contents

 

Log Rolling Options

123

 

Avoiding Poor System Performance

124

Appendix C

StorNext Files

125

 

The example.cfg File

125

 

Commonly Used SNFS Files

132

Appendix D

Quality of Service Guide

135

 

Overview

136

 

Active vs. Passive

136

 

Supported Platforms

136

 

Configuration

137

 

Unit of I/O

137

 

Converting MB/sec to I/O/sec

137

 

Real-time I/O

142

 

SetRtio

143

 

Oversubscription

143

 

Handles

143

 

Ungated files

144

 

Calculating Available RTIO

145

 

Callbacks

145

 

Callback Failures

147

 

Tokens

148

 

Failure Semantics

149

 

FSM Failures

150

 

Client Failures

150

 

Client Token Releases

151

 

Monitoring

151

 

Sharing Disk Resources

152

StorNext 3.1.3 Installation Guide

vi

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Quantum 6-00360-15 manual Log Rolling Options 123 Avoiding Poor System Performance 124