Disk array system and its logical resource processing method in degradation or reconstruction state
A disk array and logical resource technology, applied in the direction of input/output to record carrier, etc., can solve the problems of affecting the read and write performance of disk array business, not being economical, and low utilization of storage resources, so as to improve the read and write performance of business and reduce the Business burden and the effect of improving storage resource utilization
Inactive Publication Date: 2011-03-30
NEW H3C TECH CO LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there are still big problems with this method: first, when the array where the LUN or its mirror resource is located is being rebuilt, the data write operation will still write data to the disk array in the rebuilding state, which will still cause serious problems. It affects the business read and write performance of the disk array in the reconstruction state, and the reconstruction speed is still very slow; secondly, because the mirror LUN is used, the required storage resources are doubled, and the utilization rate of storage resources is low, which is not economical
Method used
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
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0037] The present invention mainly records the writing state of the LUN in the disk array, and according to the writing state of the LUN, redistributes the LUN in the disk array in the degraded or rebuilding state to the disk array in the normal state, and at the same time, the original The write operation of the LUN is converted to the write operation of the newly allocated LUN, and the read operation of the original LUN remains unchanged. In this way, all write business operations on the degraded or rebuilding disk array can be transferred to the normal disk array, greatly reducing the business burden of the degraded or rebuilding disk array, and improving the business read of the entire disk array system. Write performance, and does not occupy addit...
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 PUM
Login to View More Abstract
The invention discloses a disk array system and a method for processing a logical resource LUN under the degradation or reconstruction condition of the disk array. The method comprise the following steps: redistributing the LUN resources in the disk array which is in the state of degradation or reconstruction to the disk array which is in the normal state according to the recording of the writing state of the LUN resources in the disk array and the writing state of the LUN resources; converting a writing business operation on the original LUN resources to a writing business operation on the newly-distributed LUN, and keeping the reading business operation on the original LUN unchanged. The system and the method have the advantages that the writing business operation on the disk array in the state of degradation or reconstruction is transferred to the normal disk array, so that the business burden of disk array in the state of degradation or reconstruction is greatly reduced, and the business reading and writing performance of the disk array in the state of degradation or reconstruction is improved.
Description
technical field [0001] The invention relates to the technical field of disk arrays, in particular to a disk array system and its logical resource processing method in a degraded or rebuilt state. Background technique [0002] A redundant array of independent disks (RAID, Redundant Array of Independent Disks), referred to as "disk array", is a storage system that can provide high security and high read / write performance. Its principle is to use the combination of multiple hard disks to form an array to read and write disk data in a fast, accurate and safe manner, thereby achieving a means of improving data read and write speed and security; when one or more When a disk fails, the data can be calculated by relying on other disks, so as not to cause data loss. [0003] In the disk array, it includes disk array configuration information, logical resources (LUN, logical unitnumber) and LUN configuration information, wherein the disk array configuration information includes vario...
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 Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 王连朝杨西平苏佳
Owner NEW H3C TECH CO LTD