One Storage Does Not Fit All - The Importance of Tiering Your Data


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A paper on the importance of tiering data storage, by Business Communications Services Program Director Lynda Stadtmueller. For the full whitepaper, please visit

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One Storage Does Not Fit All - The Importance of Tiering Your Data

  1. 1. Why “One Storage Does Not Fit All”: the Importance of Tiering Your DataAs the saying goes, you don’t use an elephant gun to kill a fly. Not only is it a profligate waste ofmoney, but it won’t work as well as a simple fly swatter. Same with data storage. Choosing the rightstorage for your data means not only cost savings, but also better throughput and performance.Storage, of course, comes in a range of media, and each medium represents a price/performancetradeoff. By using a tiered storage approach, managed by intelligent software, you willensure that data is in the optimal place, giving you appropriate performance levels at thelowest possible cost. For example: Newer data (between 1 and 7 days old) is accessed most frequently. So it’s appropriate to invest in a higher-cost solution that offers high availability and easy access, like solid state drives. As data ages, it is accessed less frequently (for example, 70 percent of data hasn’t been accessed in more than 90 days). This data can be stored less expensively in progressively less expensive storage tiers, which may be disk-based or tape.Tiered Storage Solution Source: Stratecast©2011 Stratecast. All Rights Reserved. A Technical Brief Sponsored by IBM
  2. 2. The challenge for IT managers is not just to place the data once in the right tier, but to keep it in theright tier as it ages. Rather than depend on manual processes to do this, it’s best to select a storagemanagement tool that automatically moves data among the storage tiers in your system.IBM Easy Tier technology automates the movement of data between costly solid state and lessexpensive disk-based systems, improving performance and reducing costs. Easy Tier monitorsstored data for activity, automatically moving “hot” data to solid state and less active data to diskmedia. For additional convenience, Easy Tier optimization technology is integrated into IBM’sStorwize V7000 midrange, and DS8000 series high end disk storage systems.By including tiering as part of your storage solution, you can ensure that your storage will alwaysdeliver optimal price-performance. And you won’t be wasting your costly arsenal on a fly.Lynda StadtmuellerProgram Manager – Business Communication ServicesStratecast (a Division of FROST & SULLIVAN)©2011 Stratecast. All Rights Reserved. A Technical Brief Sponsored by IBM