Home | Previous Page | Next Page   Fault Tolerance > High-Availability Data Replication (Enterprise/Workgroup Editions) > High-Availability Data Replication >

HDR Modes

The following table shows HDR modes.

HDR Mode Explanation
Standard Mode Not part of an HDR system
Primary Mode The primary mode of an HDR system. Data can be updated.
Secondary Mode The secondary mode of an HDR system. Data cannot be updated, but the data can be read.

A database server running in standard mode or an HDR database server running in primary or secondary mode can be in any database server operating mode, such as quiescent or online. For information on operating modes, see Database Server Operating Modes.

Home | [ Top of Page | Previous Page | Next Page | Contents | Index ]