Axxana Israel Assigned Patent
Data gap management in remote data mirroring
By Francis Pelletier | July 30, 2021 at 1:00 pmAxxana (Israel) Ltd., Tel Aviv, Israel (now closed), has been assigned a patent (11,055,183) developed by Winokur, Alex, Haifa, Israel, for a “data gap management in a remote data mirroring system.“
The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A method includes monitoring a sequence of transactions in one or more volumes. The transactions are transferred to a primary storage (112) in a given order, and are replicated to a secondary storage (114). The volumes belong to a volume group (204) for which the transactions are guaranteed to be replicated while retaining the given order. Artificial write transactions (228) are periodically issued to a protection application field, which is predefined in a given volume (212) belonging to the volume group. Records indicative of the transactions, including the artificial transactions, are stored in a disaster-proof storage unit (144). Upon verifying that a given artificial transaction has been successfully replicated in the secondary storage, the records corresponding to the given artificial write transaction and the transactions that precede it in the sequence are deleted from the disaster-proof storage unit.”
The patent application was filed on September 11, 2016 (15/261,952).











