Controller switching method and device
A technology for controllers and main controllers, which is applied in the directions of data error detection, response error generation, and redundant data error detection in hardware, which can solve the problem of low data reliability and inability to Complete real-time consistent data backup and other issues
Active Publication Date: 2019-09-24
INSPUR BEIJING ELECTRONICS INFORMATION IND
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The purpose of the present invention is to provide a controller switching method and device to solve the problem in the prior art that after the controller fails, real-time consistent data backup cannot be completed, resulting in low data reliability
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
[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0034] A controller switching method provided by an embodiment of the present invention is applied to a storage system. The storage system includes a master controller and a slave controller. A snapshot relationship is pre-created on the master controller and the slave controller. Activate the snapshot relationship on the server to implement the snapshot function. like figure 1 As shown, the method may include the following steps:
[0035] S11: When the prim...
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 controller switching method and device, which is applied to a storage system. The storage system comprises a master controller and a slave controller, wherein snapshoot relations are established on the master controller and the slave controller in advance, and the snapshoot relation is activated on the master controller in advance to achieve a snapshoot function. The method comprises the following steps of disenabling the snapshoot relation on the master controller to stop achieving the snapshoot function when a fault occurs in the master controller; and enabling the snapshoot relation on the slave controller to achieve the snapshoot function. The storage system applying the controller switching method and system comprises two controllers, the two controllers are respectively the master controller and the slave controller, the automatic switching function of snapshoot is added between the two controllers, therefore, the snapshoot function is switched to the slave controller from the main controller when the fault occurs in the master controller, the comprehensive time-consuming requirement for controller switching is met, and real-time and consistent backup on data is ensured, and the data reliability is greatly improved.
Description
technical field [0001] The present invention relates to the technical field of storage disaster recovery, and more specifically, to a controller switching method and device. Background technique [0002] With the increasing demand of users for the amount of stored data, more stringent requirements are put forward for the reliability of the stored data. [0003] In the prior art, a snapshot technology is usually used to implement data disaster recovery. Among them, the snapshot technology refers to the establishment of a snapshot relationship between the two data ends of the storage system, that is, the source volume and the data volume; after the user executes the snapshot action, when an IO is issued, the source end first backs up the data corresponding to the IO to the Data volume, and then process the received IO. At the same time, the user can map the snapshot to become a snapshot volume, and the content of the snapshot volume is consistent with the content of the sour...
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): G06F11/14G06F11/20
Inventor 王倩
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND