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Apparatus and methods for operating a computer storage system

  • US 7,107,395 B1
  • Filed: 12/31/1998
  • Issued: 09/12/2006
  • Est. Priority Date: 12/31/1998
  • Status: Expired due to Term
First Claim
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1. A computer system comprising:

  • a host domain including a host computer; and

    a storage domain coupled to the host domain through one or more communication links, the storage domain comprising;

    a plurality of primary storage devices for the host domain, at least one of the primary storage devices to provide storage for the host computer;

    a secondary storage device to provide backup storage for the host computer; and

    a network, separate from each of the one or more communication links that couple the storage domain to the host domain, that couples the plurality of primary storage devices to the secondary storage device to permit one of the primary storage devices to access the secondary storage device through the network without using any of the one or more communication links that couple the storage domain to the host domain so that communication between the plurality of primary storage devices and the secondary storage device can occur over the network simultaneously with communication between the host domain and the storage domain through the one or more communication links.

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