Volume mapping deleting method and device and computer readable storage medium

A deletion method and technology of a deletion device are applied in the directions of computing, memory system, multi-program device, etc., and can solve problems such as affecting IO processing performance.

Active Publication Date: 2020-11-27
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When performing a lun delete operation, a lock operation is required, and the processing of IO read and write requests also requires a lock operation, resulting in resource competition between the lun delete operation and the processing of IO read and write requests, which affects the IO processing performance

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Volume mapping deleting method and device and computer readable storage medium
  • Volume mapping deleting method and device and computer readable storage medium
  • Volume mapping deleting method and device and computer readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0052] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] Next, a method for deleting a volume mapping provided by an embodiment of the present invention is described in detail. figure 1 It is a flow chart of a volume mapping deletion method provided...

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

No PUM Login to view more

Abstract

The embodiment of the invention discloses a volume mapping deleting method and device and a medium. Lun corresponding to a storage device identifier is adjusted to be in an offline state according tothe storage device identifier carried in an offline instruction. And when an scsi request pointing to the lun is received, a blocking identifier is set for the scsi request, and the scsi request withthe blocking identifier is cached to a preset queue. When the number of the scsi requests to be processed is zero, the lun can be released and used for executing storage resources of disk read-write operation, and the lun is deleted from the target list. The lun is adjusted to be in an offline state, a blocking identifier is set for the scsi request pointing to the lun after the lun is adjusted toan offline state, the processing of the scsi request and the ordered execution of the lun deletion operation can be ensured, and the lun deletion operation does not need to be locked, so that the influence of the lun deletion operation on the IO processing performance is effectively reduced.

Description

technical field [0001] The present invention relates to the technical field of storage devices, in particular to a volume mapping deletion method, device and computer-readable storage medium. Background technique [0002] The use of the current Small Computer System Interface (Internet Small Computer System Interface, iSCSI) service needs to start the target service on the storage side, that is, the iSCSI server program. Start the iSCSI initator service on the client, that is, the iSCSI client program. Generally, it is necessary to create a target in the server program, and add the storage device provided by the storage terminal to the target map. After the iSCSI client connects to the target, it can access all volume mappings (luns) under the target, that is, storage device mappings provided by the storage side. [0003] After the client is connected, the storage device mapping in the target cannot be deleted online. After the client actively disconnects the target link, ...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/0873G06F9/50
CPCG06F12/0873G06F9/5016
Inventor 杨鸿洁胡永刚
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap