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Mechanisms for moving data in a hybrid aggregate

  • US 8,321,645 B2
  • Filed: 04/29/2009
  • Issued: 11/27/2012
  • Est. Priority Date: 04/29/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • examining data in a hybrid storage aggregate encompassing multiple tiers of heterogeneous physical storage media using a policy module based on a set of policies that are dynamically adjusted by the policy module to adapt to changes at run-time to improve performance characteristics of the hybrid storage aggregate, the hybrid storage aggregate including a volume having a contiguous volume block number space spanning a first-tier and a second-tier of the multiple tiers of heterogeneous physical storage media;

    determining that the data is to be relocated to a different tier of physical storage media based on the set of policies; and

    relocating the data to the different tier of physical storage media.

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