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:
Dec. 01, 2009
Filed:
Sep. 07, 2006
Robert Francis Bartfai, Tucson, AZ (US);
Nicolas Marc Clayton, Warrington, GB;
Shachar Fienblit, Ein Ayala, IL;
Olympia Gluck, Haifa, IL;
Eli Malul, Maafe Nof, IL;
Gail Andrea Spear, Tucson, AZ (US);
Robert Francis Bartfai, Tucson, AZ (US);
Nicolas Marc Clayton, Warrington, GB;
Shachar Fienblit, Ein Ayala, IL;
Olympia Gluck, Haifa, IL;
Eli Malul, Maafe Nof, IL;
Gail Andrea Spear, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus, system, and method are disclosed for activating a synchronous mirror as a primary storage volume. The apparatus system and method include directing a third storage volume to store updates sent to the third storage volume from a second storage volume onto a first storage volume in response to the first storage volume becoming operational after a failure, terminating sending updates from the second storage volume to the third storage volume in response to the first storage volume becoming substantially consistent with the third storage volume, and synchronously storing updates received by the second storage volume on the first storage volume and asynchronously storing updates received by the first storage volume on the third storage volume in response to terminating sending updates from the second storage volume to the third storage volume after the first and third storage volumes are substantially consistent.