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Storage region management method, storage region allocation method and program

  • US 20110145538A1
  • Filed: 02/17/2011
  • Published: 06/16/2011
  • Est. Priority Date: 08/17/2008
  • Status: Active Grant
First Claim
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1. A storage area management method for a data storage apparatus comprising:

  • an acquiring step that acquires an allocation size of a region, which is a storage area that has been preliminarily allocated;

    a computing step that computes a sum of mutually differing powers of 2 by a calculation using the allocation size and a region allocation unit size;

    a partitioning step that partitions the region into primary segments for each of exponents with mutually differing powers of 2 that is computed, which primary segments are storage areas each of whose size is calculated by multiplying that power of 2 with the region allocation unit size; and

    a managing step that manages the region for each primary segment.

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