Method for improving usability of disk and disk array controller

A disk array and availability technology, applied in the field of network communication, can solve the problems of wasting disk resources, disk unavailability, occupying processing power, etc., and achieve the effect of avoiding data loss, reducing time, and improving performance
CN101567211AInactive Publication Date: 2009-10-28NEW H3C TECH CO LTD
0 Cites 27 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
NEW H3C TECH CO LTD
Publication Date
2009-10-28
Estimated Expiration
Not applicable ยท inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a method for improving the usability of a disk and a disk array controller. The method comprises the following steps of: arranging a main data memory space in a disk array; arranging more than one backup data memory spaces; determining a first main data memory space on the damaged track when detecting the damage of part track of the disk in the disk array; selecting an idle first backup data memory space; establishing a corresponding relationship between the block addresses contained by the first main data memory space and the block addresses contained by the first backup data memory space; receiving the visiting instructions of the block contained by the first main data memory space; querying the blocks contained by the first backup data memory space according to the block address in the visiting instructions and the corresponding relationship; and visiting the block contained by the first backup data memory space. The method and the disk array controller can improve the usability of the disk in the disk array.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to network communication technology, in particular to a method for improving disk availability and a disk array controller. Background technique

[0002] At present, in order to improve the storage performance and data security of the hard disk, a Redundant Array of Independent Disks (RAID, Redundant Array of Independent Disks,) is called a disk array for short. Disk array technology is to use the combination of multiple hard disks to form an array, and selectively distribute data on multiple disks in an array, and use the parallel access and parallel transmission of the multiple disks to match the bandwidth and improve the performance. Access speed, for the host, it is equivalent to a fast and large-capacity disk, thereby improving the availability and storage capacity of network data.

[0003] In a disk array, data is organized using extents, strips, and stripes. figure 1 It is a schematic diagram of the partition structure in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More