초록 ▼

In a microprocessor-based computer system, file backups are performed by monitoring modified areas of one or more files, through the write statements which give rise to the modifications. A meta-data database is constructed containing information relating to the locations of those modified areas. Th

In a microprocessor-based computer system, file backups are performed by monitoring modified areas of one or more files, through the write statements which give rise to the modifications. A meta-data database is constructed containing information relating to the locations of those modified areas. The backup database may then be modified by interrogating the meta-data database and thereby backing up only the data which has been modified in the database itself. Thus the size of the backup database may be reduced. The invention may be incorporated in a dedicated backup application and/or operating system or may interact with a conventional file-by-file backup application.

대표청구항 ▼

A method of operating a microprocessor-based computer system including a random access memory, a central processing unit, and storage means, the method comprising the step of: providing instructions stored in the memory to the central processing unit to cause said central processing unit to write da

A method of operating a microprocessor-based computer system including a random access memory, a central processing unit, and storage means, the method comprising the step of: providing instructions stored in the memory to the central processing unit to cause said central processing unit to write data to at least one file stored in the storage means by generating a write request, extracting information for a modification data set from each said write request, and building a database containing at least one said modification data set. wherein the write request comprises said modification data set which identifies a region of said file modified by said write request, and wherein the modification data set includes identification means for identifying said file, a starting position in said file and a length value corresponding to the quantity of data to be written to said file.