MAINTAINING COMMONLY NAMED CLIENT-SPECIFIC FILE CONTENT IN HARD DISK DRIVE EMULATION

摘要

A data processing network has a virtual hard drive emulator and client terminals that share a virtual disk image. Client-specific read-write versions of selected files or directories are supported. All clients access the client-specific versions using the same name and address identifiers (for example, the same file name for a given configuration file), but each client has an exclusive version. A file ID distinguishes respective clients. These files are maintained alongside other files of other types and attributes. The selection of files to be client-specific can be predetermined, or a client-specific version of a file can be generated if the client executes a write operation to a client-specific file or area, the written data containing data read by the client in any of memory area available to the clients (RAM, Virtual Disk Drive, Hard Disk drive etc.). The technique supports customization while maximizing administrative control of operating system versions and minimizing redundant storage. File access for client terminals can be made close to systems having local hard drives.