Method and apparatus for transmitting a file in a network using

Details Method and apparatus for transmitting a file in a network using Method and apparatus for transmitting a file in a network using

1995-09-25

1998-12-01

Amsbury, Wayne

Data processing: database and file management or data structures

Database design

Data structure types

707 9, 395673, 395677, G06F 1700

Patent

active

058452800

ABSTRACT:
A method and apparatus for transmitting files on a network are described. In response to a network request for a file stored on a secondary data storage device such as a hard disk, a file server retrieves and transmits the file using a reduced number of calls from user-mode processes to kernel-mode processes.
In response to a file request from a non-local networked machine, a user-mode process on the file server issues a command to a kernel-mode process requesting transmission of the requested file to the non-local networked machine via a designated connection. In response, the requested file is retrieved from the secondary data storage device and placed in kernel-mode accessed memory (e.g., cache memory). After the requested file information is stored in the kernel-mode accessed memory, a kernel-mode data transmission procedure transmits the requested file information directly from the kernel-mode accessed memory.

REFERENCES:
patent: 5109515 (1992-04-01), Laggis et al.
patent: 5394526 (1995-02-01), Crouse et al.
patent: 5408617 (1995-04-01), Yoshida
patent: 5515508 (1996-05-01), Pettus et al.
patent: 5537417 (1996-07-01), Sharma et al.
Tanenbaum, A, "Operating Systems", 1987, pp. 36-43.

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