Zero copy write datapath

Details Zero copy write datapath Zero copy write datapath

2011-03-29

2011-03-29

Lie, Angela M (Department: 2163)

Data processing: database and file management or data structures

Database design

Database and data structure management

C707S803000, C707S812000

Reexamination Certificate

active

07917539

ABSTRACT:
A technique enhances a write data path within a storage operating system executing on a storage system. As used herein, the write data path defines program logic used by a file system of the storage operating system to process write requests directed to data served by the file system. The technique enhances the write data path of the storage system by providing a “zero copy” write data path embodied as a function of the storage operating system that eliminates a copy operation for a write request received at the storage system. The eliminated operation is a data copy operation from a list of input buffers to buffers used by the file system.

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