Please download the dossier by clicking on the dossier button x
×

Method and system for leveraging spares in a data storage system including a plurality of disk drives

  • US 6,845,465 B2
  • Filed: 09/17/2001
  • Issued: 01/18/2005
  • Est. Priority Date: 09/17/2001
  • Status: Active Grant
First Claim
Patent Images

1. A method for data redundancy in a data storage system, comprising:

  • a) grouping a plurality of disk drives into a plurality of arrays having data redundancy to optimize performance, and b) for every failure of one of said plurality of arrays due to a failed disk drive, dynamically creating a new array having data redundancy in said plurality of arrays and that is optimized for performance, said new array containing information from said failed disk drive;

    wherein b) comprises;

    b1) upon failure of a first array in said plurality of arrays due to said first failed disk drive, dynamically choosing a second array in said plurality of arrays that has the smallest number of disk drives as between the remaining arrays, said second array having redundancy;

    b2) combining disk drives from said first array, excluding said first failed disk drive, with disk drives from said second array to dynamically form said new array in a RAID configuration having data redundancy in said plurality of arrays; and

    configuring said new array in a RAID-4 configuration.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×