RAID array transposing method and device thereof

An array and array logic technology, applied in the field of data storage, can solve problems such as the inability to restore RAID1 arrays and affect online business performance, and achieve the effect of accelerating the conversion speed
CN101556802AActive Publication Date: 2009-10-14NEW H3C TECH CO LTD
0 Cites 14 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NEW H3C TECH CO LTD
Publication Date
2009-10-14

Smart Images

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

Abstract

The invention discloses an RAID transposing which comprises the following steps: an RAID controller sets an RAID 1 mirroring disk as a source data disk and an RAID 1 primary disk provides online service reading and writing; the RAID controller transfers the data of the RAID 1 mirroring disk to an RAID 5 as source data and does not transfer the data of the RAID 1 primary disk; an RAID 5 logical address corresponding to the RAID 1 primary disk is reserved; after the RAID controller confirms that the data of the RAID 1 mirroring disk is transferred to the RAID 5 array completely, mapping is conducted to a physical address of the RAID 1 primary disk and the reserved RAID 5 logical address; and logical address forming is conducted to the RAID 1 primary disk according to the mapping relationship, and array transposition is finished. Therefore, the method and the device do not affect the online service performance of an array and can speed up RAID transposition.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The present invention relates to the technical field of data storage, in particular to a method and device for RAID array conversion. Background technique

[0002] RAID (Redundant Array of Independent Disks), as a high-performance and highly reliable storage technology, has been widely used. RAID combines a series of individual disks in different ways to provide a logical disk for an application host or host cluster. RAID technology uses a combination of multiple disks to expand disk capacity and improve data read and write speed and security. For example, when one or more disks fail, it can calculate the lost data based on the data in other disks.

[0003] After continuous development of RAID technology, there are now 6 clear standard levels of RAID from RAID 0 to RAID 5. In addition, there are RAID6, RAID7, RAID10 (combination of RAID 1 and RAID0), RAID01 (combination of RAID 0 and RAID 1), RAID30 (combination of RAID 3 and RAID0), RAID50 (combination of ...

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