Metadata volume bitmap data conflict processing method and related components

Abstract

The invention discloses a metadata volume bitmap data conflict processing method. When the space distribution of a metadata volume meets conflicts of 0-to-1 and 1-to-0, a conflict bit is set to be 1,so that GC garbage collection can be prevented from periodically carrying out space collection processing; when a condition that I bit is zero is detected at one end, the data loss in data covering writing caused by the space corresponding to the bit is covered, when conflict happens, the bit is set to be 1, so that the conflict bit can be prevented from being distributed again, the space is prevented from being repeatedly distributed and written, the data loss caused by data coverage is avoided, and after GC recycles the bit, the continuously distribution can be carried out, and the repeatedutilization of the conflict bit is realized. The invention further provides a metadata volume bitmap data conflict processing device and equipment and a readable storage medium, and the metadata volume bitmap data conflict processing device and equipment have the above advantages.

Description

technical field [0001] The present application relates to the technical field of storage systems, in particular to a metadata volume bitmap data conflict processing method, device, equipment and a readable storage medium. Background technique [0002] With the widespread use of SSD disks, in order to adapt the storage system to SSDs to achieve better performance, some SSD adaptation schemes have been produced. Existing research institutes and storage manufacturers are all committed to studying how to adapt SSDs and put forward adaptation schemes. The adaptation schemes between storage systems and SSDs include bitmap data (bitmap) management methods. The bitmap uses a bit to mark the value corresponding to an element. Currently, the bitmap management methods in the SSD-adapted storage system include two types of bitmap management: data volume bitmap and metadata volume bitmap. The data volume bitmap is used to mark the state of the block in the data LSA volume, and the metad...

AI Technical Summary

Problems solved by technology

In this way, when B receives the release operation sent by A, B has completed the operation but has not replied to A. At this time, B detects the I bit and performs a set operation on it. This may cause data inconsistency at this time. For subsequent system processing negatively impacts for which there is currently no clear solution

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