A method and system for processing IO path failover
A path failure and processing method technology, applied in the direction of electrical digital data processing, hardware redundancy for data error detection, instruments, etc., can solve the problems of reducing data transmission efficiency and data processing speed into bottlenecks, etc., to achieve rapid improvement performance and safety, and improved failover time
Active Publication Date: 2021-06-11
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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Problems solved by technology
Since there is no strengthening of the single-path failure between the host and the storage system, a delay is required, which reduces the efficiency of data transmission in the event of a single-path failure, making this extremely fast data processing speed a bottleneck
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[0031] 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.
[0032] Please refer to Figure 1~2 , figure 1 A schematic flow chart of the steps of a specific implementation of the IO path failover processing method provided by the embodiment of the present invention; figure 2 A schematic structural diagram of a specific implementation manner of an IO path failover processing system provided by an embodiment of the present invention.
[0033] In a specific implementation manner, the IO path failover processing method i...
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The invention discloses an IO path failover processing method and system, wherein the method includes: registering WWPN and host_port and failover_port information corresponding to the WWPN for a physical port of a storage system through a drive, and initializing the port information and failover_port of the host_port of the physical port port information; map the host port information to the host, where the state of host_port is set to active, and the state of failover_port is set to inactive; establish the IO path link between the host and the storage system, that is, establish the connection between the host port and the virtual port; open the port , after the storage system is powered on, call start_port to start the IO path, and when the host starts IO, perform IO transmission; judge whether the data transmission of the IO path fails; The port information of host_port is assigned to the failover_port of the second controller. By assigning the port information of the faulty end to failover_port when the IO path fails, the host can determine that the original delivery path still exists and continue to deliver IO.
Description
technical field [0001] The present invention relates to the technical field of IO data processing, in particular to an IO path failover processing method and system. Background technique [0002] With the rapid development of computer technology, many technologies have been greatly improved, especially the successful use of back-end storage system partitions, which meets the security and speedy requirements of server hosts for sending data. Moreover, with the successful use of cache and flash memory, the needs of various computer fields for computing resources and computing speed have been met, and this processing method has greatly accelerated the speed of data processing. [0003] However, for a multi-control system, when using FC HBA for IO transmission, when a certain path fails, that is, a certain port of FC HBA fails, for the IO forwarding mode of the faulty path, the common host and The method used by the storage system is to delay IO and convert the IO path between ...
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IPC IPC(8): G06F11/20
CPCG06F11/202
Inventor 陆力信王永刚
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD