controls::establish retention set size for backups

Overview

The num_db_backups parameter specifies the number of backups to retain for a database before marking the oldest backup as deleted. It is recommended that this parameter be set to at least 12.

Rationale:

Retain multiple copies of the database backup to ensure that the database can recover from an unexpected failure. This parameter should not be set to 0. Multiple backups should be kept to ensure that all logs and transactions can be used for auditing.

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Benchmarks

This control is used in the following benchmarks:

Skipping

To deliberately skip this control (e.g. meaning don’t use Puppet to enforce this setting), we provide you with three ways:

1) Add db2_secured::controls::establish_retention_set_size_for_backups: skip to your hiera data. This will skip this control for ALL databases.
2) Add db2_secured::controls::establish_retention_set_size_for_backups::instance_name::dbname: skip to your hiera data. This will skip this control for specified database only.
3) Add an entry with the content establish_retention_set_size_for_backups to the array value db2_secured::skip_list in your hiera data.

Attributes

Attribute Name Short Description
title The database identifier to apply the control to.

title

The database identifier to apply the control to.

All controls need an database identifier to apply the control to. Here is a simple example:

db2_secured::controls::control_name { 'db2inst1/MYDB':}

In this example, the string dbinst1 is the instance, the string MYDB is the database to apply the control to.

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