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Information lifecycle management

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Information lifecycle management

Information Lifecycle Management (ILM) refers to a series of strategies aimed at managing storage systems on computing devices.

ILM is the practice of applying certain policies in an effort to accomplish effective information management. This practice originated from managing information in physical forms such as paper, microfilm, negatives, photographs, audio and video recordings[citation needed]. It refers to the information management of any product or process from start to end, or until its execution.

ILM encompasses every stage of a "record" from creation to disposal. While it is commonly associated to information that meets the formal definition of a record (and thus related to records management), it applies to all informational assets. During its existence, information may be designated as a record if it documents a business transaction or fulfills a specific business requirement. In this sense, ILM is a part of the broader framework of enterprise content management.

The term "business" is used in a broad sense, encompassing more than just commercial and enterprise activities. While many records pertain to business operations, others document historical events or significant moments unrelated to business endeavors. Examples including birth, death, medical/health, and educational records. e-Science, for example, is an area where ILM has become relevant.

In 2004, the Storage Networking Industry Association, on behalf of the information technology (IT) and information storage industries, attempted to assign a new and broader definition to Information Lifecycle Management (ILM). A definition published on October at the Storage Networking World conference in Orlando, Florida, stated that "ILM consists of the policies, processes, practices, and tools used to align the business value of information with the most appropriate and cost-effective IT infrastructure from the time information is conceived through its final disposition." In this view, information is aligned with business processes, through management policies and service levels associated with applications, metadata, information, and data.

The ILM policy encompasses storage and information policies that guide management processes. Policies are dictated by business goals and drivers, tying into a framework of overall IT governance and management; change control processes; requirements for system availability and recovery times; and service level agreements (SLAs).

Operational aspects of ILM include backup and data protection; disaster recovery, restore and restart; archiving and long-term retention; data replication; and day-to-day processes and procedures necessary to manage a storage architecture.

Infrastructure facets of ILM include the logical and physical architectures, applications dependent upon the storage platforms; security of storage; and data center constraints. Within the application realm, the relationship between applications and the production, test and development requirements are generally most relevant for ILM.

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