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Management of recycling bin for thinly-provisioned logical volumes

  • US 8,595,461 B2
  • Filed: 12/27/2012
  • Issued: 11/26/2013
  • Est. Priority Date: 08/15/2008
  • Status: Expired due to Fees
First Claim
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1. A method for data storage, comprising:

  • representing logical volumes by respective sets of pointers to physical partitions in long-term storage devices in which data used by the logical volumes is stored;

    defining one or more of the logical volumes as provisionally deleted;

    selecting, based on a number of private physical partitions, a provisionally deleted logical volume for deletion, wherein the selected provisionally deleted logical volume comprises one or more private physical partitions on a long-term storage device that includes data that is used exclusively by the provisionally deleted logical volume;

    deleting the selected provisionally deleted logical volume; and

    releasing at least one of the one or more of the private physical partitions for reallocation to another logical volume subsequent to deleting the selected provisionally deleted logical volume.

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