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:
Aug. 03, 1999
Filed:
Oct. 16, 1997
Tyky Aichelen, Los Altos, CA (US);
International Business Machines Incorporated, Armonk, NY (US);
Abstract
In a computer system having a processor, memory, and a set of storage units storing a set of objects, each object comprising a set of segments arranged in a set of original object stripes on separate storage units, a directory is maintained identifying an object name and a location of each stripe of the object in the set of storage units. A method is provided for re-striping the set of objects onto an expanded set of storage units comprising the set of storage units and at least one other additional storage unit. A list is maintained of each object to be copied onto the expanded set of storage units. Each segment is copied to a new set of stripes on a separate storage unit of the expanded set to create a new object while continuing to store an original copy of each segment of the list object in the original set of object stripes. The directory is updated to include a new object name and a new location of each new stripe of the new object. After all the list object segments are copied to the new stripes, the original copy of each list object segment is deleted and the new object is renamed in the directory to the list object name.