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Disk drive array memory system using nonuniform disk drives

DC
  • US 5,430,855 A
  • Filed: 08/31/1994
  • Issued: 07/04/1995
  • Est. Priority Date: 02/06/1991
  • Status: Expired due to Term
First Claim
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1. A data storage system, having a plurality of disk drives each having a single set of at least two predefined data storage characteristics, for storing data records for at least one associated data processor, comprising:

  • a controller, responsive to one of said disk drives having at least one of said at least two data storage characteristics different than a corresponding one of said at least two data storage characteristics of the remaining ones of said plurality of disk drives, for selecting a common disk drive format comprising a set of said data storage characteristics that are emulatable by all of said plurality of disk drives, comprising;

    means for selecting at least one of said data storage characteristics,means for querying each said disk drive to determine a disk drive format, corresponding to said selected data storage characteristics, implemented on each of said disk drives,means for selecting a disk drive format, corresponding to said selected data storage characteristic, that is emulatable by each of said disk drives;

    means for configuring said plurality of disk drives to match said selected common disk drive format; and

    means, responsive to the receipt of a stream of data records from said associated data processor, for writing said received stream of data records in available memory space in one of said disk drives.

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