Huawei Assigned Four Patents

Hash table storage and search methods and devices
Huawei Technologies Co., Ltd., Shenzhen, China, has been assigned a patent (9,294,390) developed by Liu, Zhenxiao, and Teng, Xindong, Beijing, China, for a “hash table storage and search methods and devices.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A hash table storage method includes: obtaining attribute information of at least two levels of hash tables, sequentially obtaining Key information from a received packet according to the attribute information of the at least two levels of hash tables, sequentially determining whether the Key information is stored in its corresponding hash table, and storing the Key information in its corresponding hash table if the Key information is not stored in its corresponding hash table.“

The patent application was filed on June 6, 2012 (13/489,671).

Controller for managing storage array
Huawei Technologies Co., Ltd., Shenzhen, China, has been assigned a patent (9,292,220) developed by Gong, Tao, Chengdu, China, for a “method, apparatus, and controller for managing storage array.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A method, an apparatus, and a controller for managing a storage array that is divided into a first storage device subset and a second storage device subset according to degrees of wear of storage devices, where a minimum degree of wear of a storage device in the first storage device subset is greater than or equal to a maximum degree of wear of a storage device in the second storage device subset, and then, data in the second storage device subset is migrated to the first storage device subset or to-be-written data is written into the first storage device subset. Therefore, service lives of storage devices in the second storage device subset may be extended relatively by shortening service lives of storage devices in the first storage device subset.“

The patent application was filed on December 19, 2013 (14/134,010).

Recovering erroneous data
Huawei Technologies Co., Ltd., Shenzhen, China, has been assigned a patent (9,280,301) developed by Bao, Huiqiang, Shenzhen, China, Wang, Dayong, Hangzhou, China, and Wang, Rongsheng, Shenzhen, China, for a “method and device for recovering erroneous data.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A method for recovering erroneous data is disclosed, the method includes: when data in a storage block that is included in a solid state disk, (SSD) is read, performing a first error check on data on a certain page of the storage block to acquire erroneous data on the page, if a first number of pieces of the erroneous data on the page is smaller than or equal to a preset first threshold, performing an error checking and correction, (ECC) recovery on the data on the page, and if the first number is greater than the preset first threshold, acquiring data from spare space according to a storage position of the erroneous data on the page and a fixed entry corresponding to the storage block, and replacing the erroneous data on the page with the acquired data, where the fixed entry includes a storage position of each data stored in the spare space.“

The patent application was filed on September 30, 2014 (14/501,368).

Backing up method, device, and system for virtual machine
Huawei Technologies Co., Ltd., Shenzhen, China, has been assigned a patent (9,250,824) developed by Qin, Zufu, Shenzhen, China, for a “backing up method, device, and system for virtual machine.”

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Embodiments of the present disclosure provide a backing up method, device, and system for a virtual machine. The backing up method for a virtual machine includes a backup server mounting a snapshot initial volume of a to-be-backed-up original volume of a virtual machine in a primary storage device to the backup server, creating an initialization backup volume on a backup storage device and mounting the initialization backup volume to the backup server, and backing up an original data block of the original volume to the initialization backup volume.“

The patent application was filed on October 24, 2013 (14/062,669