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High capacity data storage system using disk array

  • US 5,423,046 A
  • Filed: 12/17/1992
  • Issued: 06/06/1995
  • Est. Priority Date: 12/17/1992
  • Status: Expired due to Fees
First Claim
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1. A power management subsystem for controlling power status of a plurality of physical disk files in a disk array, said power management subsystem comprising:

  • an input for receiving an identified cluster number representing a logical cluster of disk files to be activated and for receiving mapping information for identifying the physical disk files allocated in the disk array to the logical cluster;

    an output addressibly connected to power controls of the physical disk files; and

    an array power optimizer, coupled to the input and the output, for activating and deactivating the physical disk files in the array in accordance with a constraint function.

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