Infinidat Assigned Four Patents

Host enabled management in storage system
Infinidat Ltd., Herzliya, Israel, has been assigned a patent (9,087,201) developed by Sandler, Kariel, Bat Hefer, Israel, Rozendorn, Guy, and Broido, Jacob, Tel Aviv, Israel, for a “system and methods for host enabled management in a storage system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A storage system that includes a management communication interface coupled to a storage management layer and further includes a data communication interface. Upon receiving a request for accessing the storage management layer, from the host, via the data communication interface, the management layer sends to the host, access information necessary for allowing access of the host to the storage management layer via the management communication interface, and upon receiving a management command, from the host via the management communication interface, the host is provided with access to the storage management layer, in cases where the management command conforms to the access information.“

The patent application was filed on January 4, 2013 (13/733,971).

Destaging cached data in multiple recurrences in storage system
Infinidat Ltd., Herzliya, Israel, has been assigned a patent (9,087,006) developed by Yochai, Yechiel, Moshav Aviel, Israel, Dorfman, Michael, Ramat HaSharon, Israel, and Zeidner, Efraim, Haifa, Israel, for a “destaging cached data in multiple recurrences in a storage system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Storage system(s) for storing data in physical storage in a recurring manner, method(s) of operating thereof, and corresponding computer program product(s). For example, a possible method can include: upon start of a storage recurrence, destaging dirty data which had been accommodated in the cache memory prior to the start of said storage recurrence thus giving rise to destaged data group, wherein destaging is provided with no overwriting of at least superseded data destaged before starting said storage recurrence while enabling retaining metadata indicative of location of said superseded data in the physical storage space, accommodating data obtained in said cache memory subsequent to the start of said storage recurrence while preventing said data from being destaged during said storage recurrence, thus giving rise to accommodated data group, and registering a point-in-time indicative of successful destaging of the destaged data group, thereby providing an order-preservation consistency indication corresponding to said recurrence.“

The patent application was filed on May 29, 2012 (13/481,981).

SSD cache recovery in clustered storage system
Infinidat Ltd., Herzliya, Israel, has been assigned a patent (9,086,991) developed by Gold, Israel, Haifa, Israel, for a “solid state drive cache recovery in a clustered storage system.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A storage system that includes multiple nodes, each node comprises a SSD cache and a management module and hard disk drives that are coupled to the nodes. The management module of each node is arranged to manage a SSD cache map that comprises multiple entries for storing mappings from logical addresses to SSD cache physical addresses and to physical addresses in the hard disk drives. The mappings are related to data units stored in the SSD cache. Upon a rejoin of a certain node following a shut-down or a failure of the certain node, the certain node is arranged to: obtain from at least one other node, current mappings between logical addresses and physical addresses in the hard disk drives, and perform a validation process of the data units stored in the SSD cache in response to relationships between the current mappings and the entries of the SSD cache map.“

The patent application was filed on February 19, 2013 (13/769,858).

Managing storage space allocation
Infinidat Ltd., Herzliya, Israel, has been assigned a patent (9,086,820) developed by Gold, Israel, Haifa, Israel, and Satran, Julian, Omer, Israel, for a “system and methods for managing storage space allocation.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A request for obtaining a space allocation descriptor is received by a block control layer of a storage system. The space allocation descriptor is indicative of one or more logical blocks free for allocation within a range of logical addresses. The range of logical addresses is included within a logical address space related to an upper layer application which has issued the request. The space allocation descriptor is provided by using a data structure included in the block control layer and operative to map between the logical address space and allocated storage blocks within a physical storage space, managed by the block control layer.“

The patent application was filed on December 10, 2012 (13/709,092).