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Template-based creation and archival of file systems

DC
  • US 6,618,736 B1
  • Filed: 03/09/2001
  • Issued: 09/09/2003
  • Est. Priority Date: 03/09/2001
  • Status: Expired due to Term
First Claim
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1. A method for file system creation and archival comprising:

  • providing a first set of storage units and a second set of storage units, each storage unit of the first set corresponding to a storage unit of the second set;

    providing a first usage map for indicating which storage units of the second set contain valid data;

    intercepting an attempt to write a data item to a storage unit of the first set;

    writing the data item to the corresponding storage unit of the second set; and

    storing an indication in the first usage map that the corresponding storage unit of the second set contains valid data.

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