Efficient Data Transfer To/From Storage Medium of Computing Device

A method for an application on a computing device to read data from a storage medium associated with the computing device to a destination, the method comprising:

• the application issuing an application command to a file system of the computing device, the application command including an identification of the destination and a location of the data at the destination;
• the file system based on space information maintained thereby locating space on the medium having the data and compiling a list including an identification of each portion of the medium that stores the data;
• the file system issuing a file system command to a block driver of the medium, the file system command including the identification of the destination and the location of the data at such destination and also including the compiled list;
• and
• the block driver contacting the destination at the identification thereof and delivering thereto the data at the location thereof upon reading the data from the portions of the medium included in the compiled list, wherein the destination receives the data from the medium without the data first passing through the file system.

A computer-readable medium having stored thereon computer-executable instructions implementing a method for an application on a computing device to write data from a source to a storage medium associated with the computing device, the method comprising:

• the application issuing an application command to a file system of the computing device, the application command including an identification of the source and a location of the data at the source;
• the file system based on space information maintained thereby allocating space on the medium for the data and compiling a list including an identification of each portion of the medium that is to be used to store the data;
• the file system issuing a file system command to a block driver of the medium, the file system command including the identification of the source and the location of the data at such source and also including the compiled list;
• and
• the block driver contacting the source at the identification thereof and requesting therefrom the data at the location thereof, and writing the data at the location from the source to the portions of the medium included in the compiled list, wherein the medium receives the data from the source without the data first passing through the file system.

A computer-readable medium having stored thereon computer-executable instructions implementing a method for an application on a computing device to read data from a storage medium associated with the computing device to a destination, the method comprising:

• the application issuing an application command to a file system of the computing device, the application command including an identification of the destination and a location of the data at the destination;
• the file system based on space information maintained thereby locating space on the medium having the data and compiling a list including an identification of each portion of the medium that stores the data;
• the file system issuing a file system command to a block driver of the medium, the file system command including the identification of the destination and the location of the data at such destination and also including the compiled list;
• and
• the block driver contacting the destination at the identification thereof and delivering thereto the data at the location thereof upon reading the data from the portions of the medium included in the compiled list, wherein the destination receives the data from the medium without the data first passing through the file system.