Installation and Configuration

Configuration

4.3.2Preparations

First make sure of the following:

If you have several database instances on one computer, the redolog ! files of the various instances must have been created each in their

own separate directory.

As the next step you should draw up a backup schedule for your database. This is a task for the database administrator. You will have to decide whether you want the database being backed up as a whole or the backup being devided up to several days of the week.

!backup is divided up to several days.

However if you make a distributed backup, you must decide which tablespaces should be saved on which day of the week. For example, tablespaces in which extensive changes take place daily should be backed up more frequently than tablespaces, which are almost always accessed in read mode. In this way a faster recovery is possible in an emergency. Tablespaces that are almost always accessed in read mode can be backed up less frequently. A suitable backup schedule can allow

you to avoid full backups, which require lots of time and equipment, with- out creating excessively long recovery times.Please note that its is not possible to perform a recover until time if the

Establishing tablespace names

To provide an overview of the existing tablespaces and their sizes, a tool named config.sh has been supplied as a basis for creating backup schedules. It provides an overview of existing tablespaces, the associated database files and their sizes. config.sh is located in the directory $NSR_INST/oracle/config.

Example:

The configuration tool is invoked with the command

sh> config.sh <ORACLE_SID>

The ORACLE_SID can be omitted if it has been set as a shell variable and exported.

The following information is output, for example:

System Administrator’s Guide

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3Com NSR-ORA V3.2 manual Preparations, First make sure of the following, Establishing tablespace names

NSR-ORA V3.2 specifications

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