Policy-based data protection allows for better use of data protection resources. It also helps organizations comply with regulations.
A policy is a set of best practices that the organization must follow. Policies are a concrete expression of the data protection strategy.
Data Lifecycle Management (DLM) is a policy-based data management methodology. It recognizes that data has a life span based on age. DLM allows for more efficient use of data protection resources as older, less important data is not afforded the most expensive protection.
An important method of implementing DLM is through multi-tier storage architectures. When multiple levels are used for increasingly less expensive storage, more resources are available for more important data.