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:
Oct. 04, 2016
Filed:
Apr. 28, 2016
International Business Machines Corporation, Armonk, NY (US);
Yuval Berger, Tel Aviv, IL;
Ben Sasson, Yaffo, IL;
Ori Shalev, Kiryat Ono, IL;
Yosef Shatsky, Karnei Shomron, IL;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
For combining virtual mapping metadata and physical space mapping metadata in a storage system by a processor device in a computing environment, data and metadata are maintained into separate virtual streams. The separate virtual streams include a metadata stream for the metadata and a data stream for the data. Metadata for each input/output (I/O) operation received is determined using a linear function operation, the function operation being an offset of the metadata in the metadata stream that is equal to the I/O operation multiplied by a maximal metadata ratio. The metadata is allocated on the metadata stream and the metadata stream is divided into fixed size block that is responsible for describing a size of a logical space, where the logical space is equal to one divided by the maximal metadata ratio, and it is determined if the metadata has been previously loaded.