Various versions of a computer file are provided without requiring copying the file or logging changed data, so that the files have consistent user data. A program module responds to a system call argument and allocates another node in file system tables and copies metadata information from the...http://www.google.fr/patents/US5761677?utm_source=gb-gplus-shareBrevet US5761677 - Computer system method and apparatus providing for various versions of a file without requiring data copy or log operations
Computer system method and apparatus providing for various versions of a ...
