| Foreword |
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xiii | |
| Acknowledgments |
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xiv | |
| About the Authors |
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xv | |
| Part I: High Availability |
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Introduction to High Availability Architecture |
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3 | (18) |
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5 | (8) |
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6 | (1) |
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6 | (1) |
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7 | (1) |
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Transactional Resubmission |
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7 | (1) |
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Simplicity of Failover and Failback |
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7 | (1) |
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Fault-Tolerance Architectures |
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7 | (1) |
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8 | (2) |
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10 | (1) |
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11 | (1) |
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High Availability Companion Servers |
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12 | (1) |
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Implementing Fault Tolerance with High Availability Companion Server |
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13 | (6) |
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Requirements for Using Sybase HA |
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14 | (1) |
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14 | (1) |
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High-Availability Architecture Basics |
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15 | (2) |
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High Availability - Hot Standby Access |
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17 | (1) |
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High Availability - Distributed Access |
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17 | (1) |
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High Availability - Concurrent Access |
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18 | (1) |
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18 | (1) |
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19 | (2) |
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Asymmetric vs. Symmetric Setup |
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21 | (10) |
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21 | (2) |
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Performance Implications in an Asymmetric Environment |
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22 | (1) |
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23 | (1) |
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23 | (1) |
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Performance Implications in a Symmetric Environment |
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24 | (1) |
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Choosing Symmetric vs. Asymmetric Failover |
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24 | (4) |
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25 | (1) |
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24x7 Web-based Ordering Application Plus Internal Business Systems |
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25 | (1) |
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Two Independent OLTP Applications |
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26 | (1) |
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Warehouse Operation with Internal Business Systems |
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27 | (1) |
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28 | (2) |
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29 | (1) |
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29 | (1) |
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30 | (1) |
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30 | (1) |
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Failover and Failback: The Basics |
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31 | (16) |
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31 | (5) |
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31 | (2) |
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33 | (2) |
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35 | (1) |
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36 | (7) |
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37 | (3) |
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40 | (2) |
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42 | (1) |
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43 | (1) |
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43 | (2) |
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45 | (2) |
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Failover Modes and sp_companion |
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47 | (8) |
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47 | (5) |
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Resuming Normal Companion Mode from Suspended Mode |
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50 | (1) |
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50 | (1) |
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Determining Your Companion's Mode |
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51 | (1) |
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52 | (2) |
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54 | (1) |
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Chapter S Proxy Databases |
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55 | (8) |
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56 | (2) |
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When Proxy Databases are Created |
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57 | (1) |
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58 | (1) |
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Command and Procedure Behavior in Proxy Databases |
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58 | (1) |
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Commands in Proxy Databases |
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58 | (1) |
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System Procedures in Proxy Databases |
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59 | (1) |
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User-defined Stored Procedures in Proxy Databases |
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59 | (1) |
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Manually Updating the Proxy Database |
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59 | (1) |
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Proxy System Tables in Master |
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60 | (1) |
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61 | (2) |
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Preparing for Setting Up HA |
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63 | (14) |
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64 | (4) |
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64 | (1) |
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65 | (1) |
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65 | (1) |
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66 | (1) |
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67 | (1) |
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67 | (1) |
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67 | (1) |
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68 | (1) |
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68 | (1) |
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Running sp_companion...do_advisory |
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68 | (7) |
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75 | (2) |
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77 | (44) |
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77 | (2) |
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79 | (4) |
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83 | (1) |
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83 | (2) |
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85 | (14) |
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88 | (2) |
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90 | (3) |
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93 | (6) |
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Best Practices - Configuring HA |
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99 | (2) |
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Setup and Configuration Recap |
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101 | (1) |
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102 | (6) |
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Testing Failover and Failback |
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108 | (4) |
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110 | (2) |
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112 | (4) |
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116 | (4) |
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120 | (1) |
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Connectivity and Controlling Clients in Failover |
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121 | (20) |
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121 | (6) |
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122 | (5) |
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Establishing an HA Connection |
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127 | (2) |
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129 | (1) |
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129 | (2) |
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131 | (1) |
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132 | (2) |
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134 | (5) |
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139 | (2) |
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Overriding Transitions and Troubleshooting Second Point of Failure |
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141 | (20) |
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141 | (17) |
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143 | (1) |
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144 | (1) |
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dbcc ha_admin (`` '', clusterlock, ``acquire'' | ``release'') |
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144 | (1) |
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dbcc ha_admin (``SYB_HACMP'', ``conncheck'') |
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145 | (1) |
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dbcc ha_admin (`` '', drop_failedoverdb, database_name) |
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146 | (12) |
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Reinstalling installmaster and installhasvss |
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158 | (2) |
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159 | (1) |
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159 | (1) |
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Common Error Messages from dbcc ha_admin |
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160 | (1) |
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160 | (1) |
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System Changes to Adaptive Server Enterprise to Support High Availability |
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161 | (8) |
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161 | (2) |
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Table Locks on System Tables Caused by System Procedures |
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163 | (2) |
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164 | (1) |
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Changes to System Procedures for Failover |
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165 | (2) |
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Changes That Alter Server-wide Attributes |
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165 | (1) |
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Changes That Alter Server-wide Attributes in master |
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166 | (1) |
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167 | (1) |
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168 | (1) |
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Configuring Open Client for Failover |
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169 | (6) |
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169 | (2) |
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171 | (4) |
| Part II: OpenSwitch |
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OpenSwitch Concepts and Procedures |
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175 | (26) |
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176 | (8) |
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176 | (1) |
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Failure Detection and Recovery |
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176 | (1) |
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Server Pooling and Routing |
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177 | (1) |
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Load Balancing and Chaining |
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178 | (1) |
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178 | (1) |
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179 | (1) |
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180 | (2) |
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182 | (1) |
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Connection Suspend/Resume |
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183 | (1) |
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183 | (1) |
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184 | (1) |
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184 | (1) |
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184 | (2) |
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184 | (1) |
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185 | (1) |
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Temporary Tables and Cursors |
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185 | (1) |
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185 | (1) |
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Number of User Connections |
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186 | (1) |
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186 | (1) |
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186 | (2) |
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186 | (1) |
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186 | (1) |
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Listing Available Servers |
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187 | (1) |
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Changing the Status of a Server |
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188 | (1) |
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188 | (4) |
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188 | (1) |
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189 | (1) |
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189 | (1) |
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189 | (1) |
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190 | (1) |
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190 | (1) |
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191 | (1) |
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191 | (1) |
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192 | (1) |
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192 | (2) |
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Establishing an Outgoing Connection |
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192 | (1) |
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193 | (1) |
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194 | (1) |
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194 | (1) |
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195 | (2) |
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195 | (1) |
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196 | (1) |
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196 | (1) |
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196 | (1) |
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What if the Coordination Module is Unavailable? |
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196 | (1) |
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197 | (2) |
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197 | (1) |
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Representation of a Cached Connection |
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198 | (1) |
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Restoring a Cached Connection |
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198 | (1) |
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199 | (1) |
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200 | (1) |
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200 | (1) |
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Starting and Stopping OpenSwitch and Using the Coordination Module |
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201 | (14) |
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Starting OpenSwitch on UNIX |
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201 | (1) |
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Starting OpenSwitch on Windows NT |
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201 | (1) |
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202 | (2) |
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Using the Coordination Module |
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204 | (10) |
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Sample Coordination Module with In-line Explanations |
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204 | (10) |
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214 | (1) |
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215 | (30) |
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215 | (24) |
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Invoking Registered Procedures |
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216 | (1) |
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Using Registered Procedures |
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217 | (1) |
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217 | (1) |
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218 | (1) |
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219 | (2) |
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221 | (1) |
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221 | (1) |
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221 | (1) |
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222 | (1) |
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222 | (1) |
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223 | (1) |
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224 | (1) |
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225 | (2) |
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227 | (1) |
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228 | (1) |
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228 | (1) |
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229 | (1) |
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230 | (1) |
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230 | (2) |
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232 | (1) |
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232 | (1) |
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233 | (1) |
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233 | (1) |
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233 | (1) |
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234 | (1) |
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235 | (2) |
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237 | (1) |
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237 | (2) |
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239 | (3) |
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Using Notification Procedures |
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240 | (1) |
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240 | (1) |
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241 | (1) |
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241 | (1) |
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242 | (3) |
| Part III: Warm Standby with Replication Server |
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Using Sybase Replication for Warm Standby |
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245 | (20) |
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246 | (1) |
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247 | (11) |
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249 | (1) |
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250 | (1) |
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251 | (1) |
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252 | (2) |
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254 | (1) |
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254 | (3) |
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257 | (1) |
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258 | (1) |
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258 | (2) |
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Switchover Considerations |
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258 | (1) |
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259 | (1) |
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260 | (1) |
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260 | (2) |
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262 | (1) |
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263 | (2) |
| Appendix A Glossary |
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265 | (2) |
| Appendix B Tips |
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267 | (6) |
| Appendix C Sybase Central |
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273 | (20) |
| Appendix D Configuring Adaptive Server for Failover on Sun |
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293 | (20) |
| Index |
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313 | |
