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:
Mar. 20, 2007
Filed:
Apr. 26, 2004
David Robinson, Austin, TX (US);
Brian L. Wong, Gordonsville, VA (US);
Spencer Shepler, Austin, TX (US);
Richard J. Mcdougall, Menlo Park, CA (US);
David Robinson, Austin, TX (US);
Brian L. Wong, Gordonsville, VA (US);
Spencer Shepler, Austin, TX (US);
Richard J. McDougall, Menlo Park, CA (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
A file is striped across multiple filers, file servers or other devices, to create a sparsely striped multi-component file. Each filer stores one sparse component. In particular, each component physically stores only those stripes allocated to that component. The other stripes are represented as holes. Thus, instead of contiguously packing each component's stripes at the block level, each component is a file having the same logical structure. A component of a sparsely striped multi-component file can be easily converted to a mirror by filling in its holes. Similarly, a mirror can be easily converted to one component of a sparsely striped multi-component file by removing or ignoring it unallocated stripes. In either case, the layout or logical of the component does not need to be reconfigured.