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:
Nov. 01, 2016
Filed:
Jan. 09, 2015
Qlogic, Corporation, Aliso Viejo, CA (US);
QLOGIC, Corporation, Aliso Viejo, CA (US);
Abstract
Systems and methods for caching information are provided. A method includes receiving an input/output (I/O) request for writing data at a storage device, the I/O request including a logical unit number (LUN) identifier, a logical block address (LBA) associated with storage space at the storage device and a data payload; determining a hash value using the data payload; using the hash value to determine if the data payload already has been cached by an adapter; updating a reference count at a hash data structure indicating that the cached data payload is referenced by more than one I/O request, when the data payload has been cached by the adapter; and updating the hash data structure, when the data payload does not exist at a cache managed by the adapter.