The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 2007
Filed:
Oct. 02, 2002
Jerry A. Blades, Broomfield, CO (US);
Matthew C. Dewey, Broomfield, CO (US);
Bruce A. Thompson, Golden, CO (US);
David J. Van Maren, Fort Collins, CO (US);
James M. Wilson, Superior, CO (US);
Jerry A. Blades, Broomfield, CO (US);
Matthew C. Dewey, Broomfield, CO (US);
Bruce A. Thompson, Golden, CO (US);
David J. Van Maren, Fort Collins, CO (US);
James M. Wilson, Superior, CO (US);
Computer Associates Think, Inc., Islandia, NY (US);
Abstract
Mass storage system controller apparatus receives requests for access to files in a data storage system and manages access to the files in the data storage system, the data storage system having a plurality of storage devices and the requests being addressed to the data storage system as a single virtual storage device having addressable Command Regions allocated to controller commands and addressable Mapped Data Regions allocated for data storage. The apparatus includes a file system to manage access to files in the data storage system, the file system having a processor acting as a Command Region processor and acting as a Mapped Data Region processor. A disk emulator responds as a disk drive device to write/read commands and passes the write/read commands addressed to Command Regions of the virtual storage device to the Command Region processor, the write/read commands addressed to Command Regions containing controller commands for the file system. The Command Region processor responds to controller commands in the write/read commands and processes the controller commands to control files in the data storage system. The disk emulator responds as a disk drive device to write/read commands and passes write/read commands addressed to a Mapped Data Region of the virtual storage device to the Mapped Data Region processor. The Mapped Data Region processor responds to a write/read command with a Mapped Data Region address and transfers data to or from the data storage system for files mapped to the Mapped Data Region address.