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:
Sep. 11, 2018
Filed:
Jan. 08, 2013
Apple Inc., Cupertino, CA (US);
Wenguang Wang, Santa Clara, CA (US);
David A. Majnemer, Great Neck, NY (US);
Deric S. Horn, Los Gatos, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
In one embodiment, a new file creation cache is reserved on a fast storage device that is part of a composite storage device that also includes a slow storage device; the composite storage device is treated as a single logical volume (or a plurality of logical volumes) by a file system which maintains a mapping table that is used to determine whether the write operation is for a new file. If the write operation is for a new file, the file system attempts to write the new file to the fast storage device. If the write operation is not for a new file, the mapping table specifies which device is used for the write operation.