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Virtualized raid implementation method and device

An implementation method and virtualization technology, applied in the direction of input/output to record carrier, etc., can solve problems affecting the performance of disk group services, achieve the effect of shortening reconstruction time and improving reconstruction performance

Pending Publication Date: 2021-04-16
UNITED INFORMATION TECH H K COMPANY
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Problems solved by technology

It is not advisable to simply increase the disk reconstruction and writing speed, which will affect the external service performance of the disk group

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  • Virtualized raid implementation method and device
  • Virtualized raid implementation method and device
  • Virtualized raid implementation method and device

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Embodiment Construction

[0015] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described The embodiments are only some of the embodiments in this specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0016] Such as figure 1 As shown, some embodiments of this specification provide a virtualization raid implementation method, including dividing a physical hard disk into a first predetermined number of virtual disks, and numbering the virtual disks; dividing a second predetermined number of the virtual disks into The physical hard disks are numbered sequentia...

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Abstract

The invention discloses a virtualization raid implementation method and device, and the method comprises the steps: dividing a physical hard disk into a first preset number of virtual disks, and numbering the virtual disks; sequentially numbering a second predetermined number of physical hard disks, and selecting not less than a third predetermined number of physical hard disks from the physical hard disks to form a storage pool; selecting a fourth predetermined number of physical hard disks from the storage pool to form a pg, and completing initialization of the pg; taking out a predetermined logical volume lv from the storage pool, selecting the maximum pg in idle sub-pgs from the pg, returning the sub-pg; when the physical hard disk is damaged, degrading the fifth predetermined number of pg, reconstructing the degraded pg, and reconstructing the data to the residual space of each physical hard disk in the storage pool. The method and device can significantly improve the reconstruction performance and shorten the reconstruction time.

Description

technical field [0001] The invention relates to the technical field of hard disk data, in particular to a virtualized raid implementation method and device. Background technique [0002] At present, the single disk capacity of the disk is getting larger and larger, as high as 20TB. Traditional Raid5 and Raid6 are losing disks, bad disks, and need to be rebuilt. For reconstruction, the reconstruction speed is assumed to be 100MB / s, and the reconstruction time is 58.98 hours. [0003] The following is the detailed calculation method: 20*(1000 / 1024)^4*1024*1024 / 100 / 3600=58.98h [0004] During the reconstruction of the Raid group, the Raid group is in a degraded state. If another disk failure occurs, the Raid group will be damaged. So the rebuild time should be kept as short as possible. It is not advisable to simply increase the disk rebuilding and writing speed, which will affect the external service performance of the disk group. Contents of the invention [0005] The e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
Inventor 董文祥
Owner UNITED INFORMATION TECH H K COMPANY
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