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:
Jun. 18, 2013
Filed:
May. 04, 2012
Shay H. Akirav, Petach-Tikva, IL;
Evgeny Budilovsky, Yehud, IL;
Elena Drobchenko, Raanana, IL;
Aharon Lazar, Kiryat Ono, IL;
Ofer Leneman, Kfar Saba, IL;
Itay Maoz, Haifa, IL;
Gil E. Paz, Yehud, IL;
Shay H. Akirav, Petach-Tikva, IL;
Evgeny Budilovsky, Yehud, IL;
Elena Drobchenko, Raanana, IL;
Aharon Lazar, Kiryat Ono, IL;
Ofer Leneman, Kfar Saba, IL;
Itay Maoz, Haifa, IL;
Gil E. Paz, Yehud, IL;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Subsequent to a storage operation performed on the source instance by a source component, a synchronization message is sent to a replicated component for the replicated instance. The synchronization message is stored locally in a persistent storage location associated with the source component along with an indicator representative of a time the storage operation was performed. Pursuant to receipt of the synchronization message by the replicated component, the replicated component is updated to a dirty state to indicate a lack of full synchronization between the source and replicated instances. Receipt of the synchronization message is acknowledged by the replicated component by sending a dirty state acknowledgement. If, during a subsequent recovery process, the dirty state is not yet cleared, the replicated component is deemed ineligible for participation in a full restoration operation.