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NAMESPACE MIRRORING IN AN EXPANDABLE STORAGE VOLUME

  • US 20140330787A1
  • Filed: 05/01/2013
  • Published: 11/06/2014
  • Est. Priority Date: 05/01/2013
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • backing up metadata of a namespace constituent volume into a namespace mirror volume, wherein the namespace constituent volume stores the metadata for data objects stored in data constituent volumes;

    in response to a signal indicating that the namespace constituent volume is unavailable, redirecting metadata requests to the namespace mirror volume instead of the namespace constituent volume; and

    providing metadata for a data object of the data objects from the namespace mirror volume in response to an operation request for the data object.

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