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Data storage apparatus

  • US 20020159311A1
  • Filed: 03/05/2002
  • Published: 10/31/2002
  • Est. Priority Date: 04/26/2001
  • Status: Active Grant
First Claim
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1. Data storage apparatus comprising at least one disk drive of a kind having a single port for the input and output of serial data, at least two disk drive controllers each having data transmit and receive paths connected in common to the single port, and means for switching control to either controller if the other should fail.

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