RDF/IMP and IMPX System Management Manual (RDF 1.4+)

HP NonStop RDF/IMP and IMPX System Management Manual—524388-001
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3 Installing and Configuring RDF
After preparing your system configurations and user applications to meet RDF
requirements, you are ready to install and configure RDF. This section, which is
intended for system managers, system analysts, and database administrators,
describes how to do these tasks.
The procedures described in this section require that your business applications
already be operational on the primary system, all important database files already be
protected by TMF, the necessary Expand lines already exist between the primary and
backup systems, and the backup system include all necessary disk volumes.
Installing and configuring RDF involves these steps:
•
Preparing the primary system
•
Copying the database files from the primary to the backup system
•
Installing the RDF software on both systems
•
Configuring TMF on the primary and backup systems
•
Initializing and configuring RDF on the primary system
•
Enabling RDF operations by restarting TMF, starting RDF, and restarting the
applications on the primary system
Preparing the Primary System
Before installing RDF, you must perform the following operations at the primary
system:
1. If you are going to do offline initialization or offline database synchronization, stop
the necessary software in this order:
a. Stop all applications being protected by TMF.
b. Stop TMF.
2. Prepare your NonStop SQL tables and Enscribe files for RDF protection as follows:
a. Separate the tables to be protected by RDF from the tables not to be
protected. (This step is recommended but not required.)
b. Set audit compression (the AUDITCOMPRESS file attribute) on for all tables
and files to be protected by RDF. Note that audit compression on is the
creation default for NonStop SQL tables and indexes. Although not required by
RDF, audit compression will enhance RDF performance.
Note. If you are going to use the DBSYNCHTIME parameter (for online database
synchronization) or the INITTIME parameter (for online initialization), you do not need
to stop your applications or TMF. For information about online database
synchronization, see Section 7,
Online Database Synchronization.