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. 22, 2013
Filed:
Aug. 15, 2011
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
A file server provides access to a file system built on a logical volume of data storage. The file system includes multiple cylinder groups of file system blocks, and the logical volume includes slices of the cylinder groups. The file server has a storage reorganizer for identifying allocated file system blocks in a selected slice, and evacuating the identified allocated file system blocks from the selected slice. The selected slice is evacuated by reverse mapping each identified allocated block to identify a file to which the identified allocated block is allocated, allocating a new block in another slice, copying data from the identified allocated block to the new block, and substituting the new block for the identified allocated block in the file.