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  SQL Server Tips by Robin Schumacher

Data Lifecycle Management

DLM is the process of cost-effectively managing and optimizing critical data and database infrastructures. The bottom line is that DLM manages data from its logical conception down to its eventual archival or removal. The three primary components, or layers, of DLM are:
  • Data Management Service Layer.
  • Database Management Service Layer.
  • Performance Management Service Layer.

There is a lot of industry buzz around the concept of DLM. Storage vendors have put their own spin on DLM and coined the phrase, Information Lifecycle Management (ILM). However, upon closer inspection, ILM is very storage-centric in its definition and management. The ILM vendors do not believe data can be defined until it hits the disk, which naturally upsets many data modelers and data architects.

DLM is similar to ILM in some ways, but it is much more encompassing. Figure 1.1 graphically depicts DLM. Non-relational data sources must be included under the umbrella of DLM, as there is much data managed outside of relational engines like SQL Server.


The above book excerpt is from:

High-Performance SQL Server DBA
Tuning & Optimization Secrets

ISBN: 0-9761573-6-5
Robin Schumacher

 http://www.rampant-books.com/book_2005_2_sql_server_dba.htm  

 

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