Method and device for processing hot removal of magnetic disk
A processing method and disk technology, applied in the computer field, can solve the problems of event and state logic processing, weak disaster recovery ability and other problems, and achieve the effect of enhancing scalability and flexibility, and improving timely recovery ability.
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[0020] Functional Overview
[0021] In a multi-controller, after the same disk is unplugged, each controller will detect that the disk is unplugged and notify the logical device layer. Therefore, when a disk array is being read and written, after a disk is pulled out, the logical device driver layer will receive three disk failure reports. In order to prevent the logical device from processing these three types of disk failure reports multiple times and affecting the processing result of the logical device, the embodiment of the present invention provides a disk hot removal processing solution, which is used in a multi-controller disk array when the After a disk is removed from the array in the read-write state, the disk hot removal event is processed. In the embodiment of the present invention, by setting the member state of the logical device and the mutual exclusion lock mechanism, the problem that the logical device processes the foregoing three disk failure reports multiple...
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