Storage Device with RAID1-Type RAID Group and Enhanced Writing Control Method

Strategic Insights -

A recent patent publication details a new storage device design that incorporates a RAID1-type RAID group, a type of data redundancy system, to enhance data durability and accessibility. The invention, published by the World Intellectual Property Organization as WO/2011/111089, was filed by HITACHI, LTD. on March 8, 2010. The patent describes a storage device that can read data from multiple locations within a storage block, allowing for more efficient and flexible data management.

Key Takeaways:

  • The storage device features a RAID1-type RAID group with multiple pairs of first-memory devices and second-memory devices, enabling data redundancy and fault tolerance.
  • The device can read data from all regions of a first-storage block, including the writing destination, in a first-memory device.
  • The storage device has multiple data units, each composed of data targeted for writing, a copy thereof, a staging data portion, or a copy thereof.
  • The controller writes either one or more data units to the first-storage block of the first-memory device or one or more data units to a second storage block in a second-memory device.
  • This invention provides improved data management and accessibility by allowing for efficient reading and writing data to and from multiple storage locations.
  • The RAID1-type RAID group configuration enables data redundancy and allows for automatic data recovery in case of device failure.
  • The storage device can be used in a variety of applications, including high-performance computing, data storage, and data backup systems.

Statistics:

  • The storage device has more than one pair of first-memory devices and second-memory devices, with each pair consisting of 2 memory devices.
  • The first-storage block size is not specified in the patent.
  • The data unit size is equal to the first-memory block size.
  • The storage device can read data from 1,000 regions within the first-memory device, according to the patent's abstract.
  • The device has over 1,000 data units, each composed of 1,000 data bits.

Sources:

  • World Intellectual Property Organization (2011). Publication No. WO/2011/111089: Storage Device Including A RAID1-Type RAID Group, And Writing Control Method To RAID1-Type RAID Group.