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Virtual disk drive system and method

  • US 7,945,810 B2
  • Filed: 08/10/2009
  • Issued: 05/17/2011
  • Est. Priority Date: 08/14/2003
  • Status: Expired due to Term
First Claim
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1. A disk drive system, capable of dynamically allocating data in a pool of storage, comprising:

  • a data storage subsystem;

    a plurality of virtual volumes comprising disk space blocks from the data storage subsystem, wherein at least a portion of the plurality of virtual volumes each comprise disk space blocks from a plurality of data storage devices; and

    a disk manager having at least one disk storage system controller;

    wherein the disk manager is configured to;

    maintain a pool of storage comprising a list of free disk space blocks of the data storage subsystem;

    dynamically allocate the free disk space blocks to the plurality of virtual volumes; and

    write data to the allocated disk space blocks.

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