Data Aging is the process of removing old data from secondary storage to allow the associated media to be reused for future backups.
By default, all backup data is retained infinitely. However, you should change the retention of your data based on your needs. Note that if you continue to have infinite retention, you will also need infinite storage capacity.
Extended retention rules can be used in the following circumstances:
In all other cases, it is recommended that the Auxiliary Copy feature be used for extended storage as it actually creates another physical copy of the data, thereby reducing the risk of data loss due to media failure.
Extended retention allows you to retain a specific full (or synthetic full) backup for an additional period of time. For example, you may want to retain your monthly full backups for 90 days.
Extended retention rules allow you to define three additional "extended" retention periods for full (or synthetic full) backups. For example:
A backup job will be selected for extended retention based on its start time. For example: If a backup job starts at 11:55 pm on August 31st and ends at 1 am on September 1st, then it will be selected as the last full backup for the month of August and will be picked up for extended retention.
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Advanced Topics |
Provides comprehensive information on additional Data Aging capabilities.
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