×

File system image transfer

DC
  • US 7,174,352 B2
  • Filed: 05/10/2001
  • Issued: 02/06/2007
  • Est. Priority Date: 06/03/1993
  • Status: Expired due to Fees
First Claim
Patent Images

1. A file system that stores and retrieves information in a plurality of storage blocks, said file system including:

  • mass storage having said plurality of storage blocks; and

    a controller that controls storage and retrieval of information, said information including data and a plurality of snapshots each including a plurality of bits associated with each one of said plurality of storage blocks, said controller using at least one of said plurality of bits in a first snapshot to identify whether said one storage block was part of said file system at a time earlier than a current consistent version of said file system, and said controller using at least a second one of said plurality of bits in a second snapshot to identify whether said one storage block was part of said file system at a second time earlier than a current consistent version of said file system.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×