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. 09, 2012
Filed:
Jun. 30, 2007
Jean-pierre Bono, Westboro, MA (US);
John M. Hayden, Holliston, MA (US);
Sairam Veeraswamy, Westborough, MA (US);
Sachin Mullick, Natick, MA (US);
Jean-Pierre Bono, Westboro, MA (US);
John M. Hayden, Holliston, MA (US);
Sairam Veeraswamy, Westborough, MA (US);
Sachin Mullick, Natick, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
Storage tiering uses file system awareness of storage class for storage allocation or migration of a storage object from one class of storage to another. For example, the storage object is a production file system, a logical unit number (LUN) of storage, or a snapshot copy of the production file system or LUN. Each storage class may comprise a different back-end disk type, such as Fiber Channel, ATA, etc. Storage allocation or migration is based on storage class to implement a storage policy, such as: (a) move snapshots off the class of storage of the production object and onto a different class of storage; (b) direct new writes to a specified class of storage; or (c) writes targeting a particular storage object are targeted to a particular class of storage.