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:
Apr. 19, 2011
Filed:
Jan. 10, 2008
Robert Nelson Crockett, Tucson, AZ (US);
William Frank Micka, Tucson, AZ (US);
David Michael Shackelford, Tucson, AZ (US);
Warren Keith Stanley, Loveland, CO (US);
Robert Nelson Crockett, Tucson, AZ (US);
William Frank Micka, Tucson, AZ (US);
David Michael Shackelford, Tucson, AZ (US);
Warren Keith Stanley, Loveland, CO (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Provided are an article of manufacture, method, and system for using multiple sidefiles to buffer writes to primary storage volumes to transfer to corresponding secondary storage volumes in a mirror relationship. Information is provided on a mirror relationship for primary storage volumes and corresponding secondary storage volumes, wherein writes to the primary storage volumes are transferred to the secondary storage volumes according to the mirror relationship. A plurality of sidefiles are associated with the primary storage volumes in the mirror relationship. A write is received to one of the primary storage volumes in the mirror relationship. One of the sidefiles associated with the primary storage volume for which the write is received is selected and the write is buffered in the selected sidefile. Writes to the primary storage volumes buffered in the sidefiles are transferred to the corresponding secondary storage volumes.