Data Reduction Chapter 4: Categorize your data for migration & deletion
In the last chapter, we discussed eliminating the one of biggest causes of data growth the duplication of large amounts of data every time you perform a full backup. In this chapter, well explore the benefits of determining what different types of data you have and categorizing it so that you can manage it most effectively. This will help you set up policies to migrate of less frequently-accessed data to lower-cost tiers of storage, and to delete the data that you no longer need or want. By cleaning out your production storage, you will shorten your backup cycles, and improve application performance.
The next option for reducing the data storage footprint is to assess the different types of data and where they are in the data life cycle. If your organization is like most, you have all your unstructured data in flat file systems, which are probably full of data that you rarely, if ever, need to access. This may include data you are no longer required by law or policy to keep, but that you havent deletedsuch as old e-mails and memosthat could prove costly if discovered in legal proceedings.
The goal is to identify what data can be moved to less expensive tiers of storage, and what data can be deleted entirely from the environment. This will reduce the need to buy more primary storage capacity and make it easier to manage and protect what you have. Backup and restore performance will improve, and it will be easier to prove that you are meeting data retention and expiration policies.
IBM offers IBM Tivoli Storage Productivity Center for Data for this purpose. This solution reports on where your data is, sorted by access or saved dates, who owns it, the application that created it, and numerous other filters. From the intelligence you gain from these reports, you can set meaningful policies in your data management software to automatically take the appropriate action on data that shouldnt be clogging up your primary systems. Tivoli Storage Productivity Center for Data can also help identify and eliminate duplicate data, orphan data, temporary data and non-business data.
To learn more, please visit the Data Reduction Solutions web page and stay tuned for chapter 5, where well talk about automating the migration, archival and expiration of your data.
Data Reduction - Chapter 4
Richard Vining 2700019R2A email@example.com Tags:  backup deduplication storage-blog space-managment archive data-management hsm data-reduction 1,133 Visits