Patents by Inventor Meiu Naruse

Meiu Naruse has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20160357479
    Abstract: A storage control apparatus is provided that includes a storage unit and a control unit. The storage unit is configured to store management information indicating a formatting status of each of a plurality of partitions included in a storage area. The control unit is configured to perform a procedure including: upon receiving a write request to write first data to the storage area, determining whether a partition including a region to which the first data is to be written is formatted, based on the management information; and when the partition is unformatted, generating third data with a size that matches a size of the partition by combining the first data and predetermined second data, and writing the third data to the partition.
    Type: Application
    Filed: June 1, 2016
    Publication date: December 8, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi Koarashi, Shimpei Ogino, Hitomi Akiyama, Takeshi Ueda, Kenji Higuchi, Meiu Naruse, REISUKE NAKAGAWA, Hiroaki Konno
  • Publication number: 20160070490
    Abstract: A storage control device includes a processor. The processor is configured to acquire history information on access to multiple logical volumes which are configured using multiple storage devices. The processor is configured to determine from among the multiple logical volumes, on basis of the acquired history information, a preferred logical volume on which restoration processing is preferentially performed. The processor is configured to restore the preferred logical volume stored in a first storage device to be restored among the multiple storage devices into a spare storage device other than the multiple storage devices using restoration data read from the multiple storage devices except for the first storage device.
    Type: Application
    Filed: July 27, 2015
    Publication date: March 10, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi KOARASHI, Hitomi Akiyama, Mikio ITO, kenji higuchi, MASAAKl SUGIYAMA, Meiu Naruse, Takeshi Ueda, REISUKE NAKAGAWA
  • Patent number: 9158478
    Abstract: When a request to write data to a logical storage area realized by a storage area of a first storage apparatus is made in a storage system, a determination section determines whether a write pattern is sequential access or random access. When the write pattern is the sequential access, a control section writes the data to the logical storage area. On the other hand, when the write pattern is the random access, the control section writes the data to a virtual storage area obtained by virtualizing a storage area of a second storage apparatus which is faster in access speed than the first storage apparatus.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: October 13, 2015
    Assignee: FUJITSU LIMITED
    Inventor: Meiu Naruse
  • Publication number: 20150067285
    Abstract: A movement processing unit retains data in a source area when 10% or more space is available at a source hierarchical level. A read processing unit reads, when data for which a read request is received is present on more than one hierarchical level, the data from a hierarchical level with a low load. A write processing unit records an update state in a bitmap table without updating a copy when a load is high, and updates copied data under the condition that a low-load state continues 10 minutes or longer.
    Type: Application
    Filed: August 18, 2014
    Publication date: March 5, 2015
    Inventor: Meiu Naruse
  • Publication number: 20140059294
    Abstract: When a request to write data to a logical storage area realized by a storage area of a first storage apparatus is made in a storage system, a determination section determines whether a write pattern is sequential access or random access. When the write pattern is the sequential access, a control section writes the data to the logical storage area. On the other hand, when the write pattern is the random access, the control section writes the data to a virtual storage area obtained by virtualizing a storage area of a second storage apparatus which is faster in access speed than the first storage apparatus.
    Type: Application
    Filed: July 1, 2013
    Publication date: February 27, 2014
    Inventor: Meiu Naruse