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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Sato; Takao
Address:
Odawara, JP
No. of patents:
24
Patents:












Patent Number Title Of Patent Date Issued
8566284 Data replication among storage systems October 22, 2013
A first storage system stores information relating to the updating of data stored in that system as a journal. More specifically, the journal is composed of a copy of data that was used for updating and update information such as a write command used during updating. Furthermore, the
8291162 Storage system October 16, 2012
One code (a compressed redundant code) is created based on a plurality of first redundant codes, each created on the basis of a plurality of data units, and this compressed redundant code is written to a nonvolatile storage area. This compressed redundant code is used to restore either a
8239344 Data replication among storage systems August 7, 2012
A first storage system stores information relating to the updating of data stored in that system as a journal. More specifically, the journal is composed of a copy of data that was used for updating and update information such as a write command used during updating. Furthermore, the
8234471 Remote copy method and remote copy system July 31, 2012
A remote copy system includes: a first storage system having a first logical volume accompanied with a first plurality of disk drives in the first storage system; a second storage system having a second logical volume, which is a virtual volume not accompanied with a second plurality
8151013 Storage system April 3, 2012
A host I/F unit has a management table for managing an MPPK which is in-charge of the control of input/output processing for a storage area of an LDEV, and if a host computer transmits an input/output request for the LDEV, the host I/F unit transfers the input/output request to the MPPK
8135671 Data replication among storage systems March 13, 2012
A first storage system stores information relating to the updating of data stored in that system as a journal. More specifically, the journal is composed of a copy of data that was used for updating and update information such as a write command used during updating. Furthermore, the
8037245 Storage system October 11, 2011
One code (a compressed redundant code) is created based on a plurality of first redundant codes, each created on the basis of a plurality of data units, and this compressed redundant code is written to a nonvolatile storage area. This compressed redundant code is used to restore either a
7962712 Method for controlling storage device controller, storage device controller, and program June 14, 2011
Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/o
7913112 Storage controller and storage control method March 22, 2011
This storage controller includes a port unit and multiple processing units for inputting and outputting data to and from a storage apparatus. The port unit sorts the data I/O requests given from a host system to the corresponding processing units according to a table pre-defining the
7912996 Storage system March 22, 2011
A host I/F unit has a management table for managing an MPPK which is in-charge of the control of input/output processing for a storage area of an LDEV, and if a host computer transmits an input/output request for the LDEV, the host I/F unit transfers the input/output request to the MPPK
7827351 Storage system having RAID level changing function November 2, 2010
A plurality of storage devices, provided in a storage system, comprise not less than two member storage devices, which are storage devices provided as members of a RAID group, and a spare storage device, which is not a member of the RAID group. A controller, provided in the storage syste
7725445 Data replication among storage systems May 25, 2010
A first storage system stores information relating to the updating of data stored in that system as a journal. More specifically, the journal is composed of a copy of data that was used for updating and update information such as a write command used during updating. Furthermore, the
7653831 Storage system and data guarantee method January 26, 2010
Proposed is a storage system and a data guarantee method capable of guaranteeing and verifying the reliability of data in a short period of time even with the heavy usage of inexpensive hard disk drives. This storage system having a storage apparatus that provides a storage extent fo
7418563 Method for controlling storage device controller, storage device controller, and program August 26, 2008
Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/o
7334097 Method for controlling storage device controller, storage device controller, and program February 19, 2008
Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/o
7315960 Storage area network system January 1, 2008
In remote copy systems connected with a dedicated interface, reliability is reduced for the time until the disk system that caused an error will be recovered. Therefore, when an error occurs in a primary disk system, it is replaced with a standby disk system connected to a storage area
7133987 Storage system and snapshot management method thereof November 7, 2006
In a novel snapshot management method for a data storage system which does not use duplication (mirroring), when a snapshot of a main volume pertaining to a designated time is being taken, every time a write request to a storage region in the main volume is received, if the data in t
7117387 Method and apparatus for writing data and validating data in a recording medium October 3, 2006
Writing in each sector of a series of sectors of a recording medium in which data is to be written caused by a single data write request location information which is information indicating a location of the sector in the series of sectors and common information which varies every ti
7093087 Method for controlling storage device controller, storage device controller, and program August 15, 2006
Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/o
7089386 Method for controlling storage device controller, storage device controller, and program August 8, 2006
Disclosed herein is a method for controlling a storage device controller connected to a storage device provided with a plurality of storage volumes for storing data respectively and an information processing apparatus for requesting an input/output of data so as to receive an input/o
6970973 Disk array system having an extended load balancing function November 29, 2005
A disk array system including plural magnetic disk drive groups each constructed by plural magnetic disk drives and a disk controller for controlling data transfer between the plural magnetic disk drive groups and an upper unit. The disk controller obtains a use frequency (I/O load)
6970310 Disk control apparatus and its control method November 29, 2005
A disk system that conducts diagnoses of magnetic heads at regular or irregular interval to detect occurrence of unwritable failure. The history of regions on magnetic recording media where write operations took place is managed and a region where an unwritable failure occurred is specif
6915403 Apparatus and method for logical volume reallocation July 5, 2005
A host computer requests a storage device to perform a data transfer operation using information about the data transfer source/destination regions as a parameter. The storage device internally transfers data from a source disk device to a destination disk device. When the transfer of
6792557 Storage area network system September 14, 2004
In remote copy systems connected with a dedicated interface, reliability is reduced for the time until the disk system that caused an error will be recovered.Therefore, when an error occurs in a primary disk system, it is replaced with a standby disk system connected to a storage area ne










 
 
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