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Method and apparatus for read-only recovery in a dual copy storage system

  • US 7,020,755 B2
  • Filed: 08/29/2002
  • Issued: 03/28/2006
  • Est. Priority Date: 08/29/2002
  • Status: Expired due to Fees
First Claim
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1. A read-only recovery apparatus configured to recover a logical volume on a physical volume, the apparatus comprising:

  • a first physical volume that is in a read-only status;

    an identification module configured to identify a logical volume on the first physical volume;

    a recall module configured to recall a selective dual copy of the logical volume, the dual copy located on a second physical volume; and

    the recall module further configured to recall a volume construct associated with the logical volume, and to recover the logical volume in a manner that is made substantially transparent to a host by providing host access to the selective dual copy of the logical volume.

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