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Recovering unreadable data for a vaulted volume

  • US 10,216,597 B2
  • Filed: 04/29/2016
  • Issued: 02/26/2019
  • Est. Priority Date: 04/29/2016
  • Status: Active Grant
First Claim
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1. A method comprising:

  • identifying a sector from a plurality of sectors in a physical memory of a storage system as an unreadable sector;

    determining that a logical block address range of the unreadable sector matches a logical block address range of a copy of the sector identified as the unreadable sector that was previously uploaded to a cloud storage, wherein the copy of the sector stores readable data and a match indicates that the logical block address of the unreadable sector has not changed since the copy of the sector was previously uploaded to the cloud storage;

    based on the determining, receiving the copy of the sector from the cloud storage; and

    replacing the unreadable sector with the copy of the sector at a same location in the physical memory occupied by the unreadable sector.

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