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This article discusses information lifecycle management (ILM) from a strorage perspective. It defines information lifecycle management, how ILM works, what business impacts ILM can have and how to best adopt ILM.
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Contents |
What is information lifecycle management?
Information lifecycle management is the process of managing the placement, storage, retrieval and growth of information over time. ILM is based on the notion that the value of all data and information is not equal and in fact may often change dramatically over time. ILM involves policies, procedures, physical and logical infrastructure and tools to match the business requirements of information access to their placement on storage systems. The goal of ILM is to have the right data on the right device to maximize business value based on factors including cost, performance, availability, risk and business agility.
ILM functions and how it works
By definition, ILM is conceived over a lifecycle from data creation, placement, access, migration, and ultimately deletion. Each of these phases involves numerous processes, procedures, technologies, tools and considerations. Factors include:
- Classifying data
- Policy management
- Data movement
- Hierarchical storage management
- Security and access control
- Replication
- Archiving
- Backup and recovery
- Performance considerations
Business impacts of implementing ILM
ILM can bring substantial efficiencies and business value in terms of reducing costs, increasing information availability, increasing application flexibility and reducing business risk.