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Method and apparatus for controlling communications in data storage complexes

  • US 20030079074A1
  • Filed: 10/19/2001
  • Published: 04/24/2003
  • Est. Priority Date: 10/19/2001
  • Status: Active Grant
First Claim
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1. A controller for positioning on a shelf of a data storage cabinet in a mass storage system, comprising:

  • an interface to a data communication loop linked to device enclosures each including a plurality of data devices and an enclosure processor, wherein the interface is adapted for transmitting control commands onto the data communication loop;

    a cabinet bus interface controller linked to a cabinet bus in the data storage cabinet and adapted to receive enclosure reporting messages from the device enclosures including environmental information for the device enclosures and to transmit subenclosure messages including environmental information for the controller; and

    a processor for creating the control commands and the subenclosure messages.

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