Mirror file system

DC CAFC
  • US 7,418,439 B2
  • Filed: 03/19/2001
  • Issued: 08/26/2008
  • Est. Priority Date: 03/17/2000
  • Status: Active Grant
First Claim
Patent Images

1. A virtual file system which provides mirroring and linking of two file systems, comprising:

  • means for mounting components of each of said two file systems on a single mount point constituting a single root directory for the components of both of said two file systems such that each mounted component of one of said two file systems is linked together with and becomes a mirroring pair with a corresponding mounted component in the other one of said two file systems, each of said two file systems having an application interface data structure constituting a programming interface for management thereof and access thereto; and

    a virtual file system configured to manage the linking and mirroring of the corresponding mounted components of each of said two file systems, and including a super application interface data structure containing an application interface data structure of said virtual file system, and said application interface data structures of each of said two file systems.

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