Internal write method and server for file servers running multiple file systems

Abstract

The invention discloses an internal writing method for a file server operating multiple file systems and the server. The method includes the steps that when the residual space of the memory of the file server cannot meet the requirement for all the file systems, internal writing of all the file systems is stopped; the internal writing of the first file system is started; the first file system is the file system with the minimum dirty data volume in all the file systems, and the internal writing of the first file system is the operation of writing the dirty data, in the cache, of the first file system into a hard disc. The method solves the problem that due to the fact that the memory of the file server is insufficient, the file systems are set to be in a write-protect state, and the interruption of services such as establishing, deleting and modifying of the file systems is caus ed is solved.

Description

technical field [0001] The invention relates to the field of computers, in particular to an internal writing method of a file server running multiple file systems and the server. Background technique [0002] The same file server usually supports running multiple file systems at the same time. Due to the limited memory of the file server, it is inevitable that multiple file systems will occupy the memory of the file server at the same time. Such as figure 1 As shown, it is a schematic diagram of internal writing of multiple file systems in the prior art. File system 1, file system 2 and file system 3 perform internal writing at the same time, that is, each file system performs internal writing at the same time and each file system is written according to the checkpoint (CheckPoint) ) are written internally. Among them, a transaction corresponds to the metadata and data on a checkpoint of the file system, and the metadata and data of the file system on each checkpoint are c...

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide an internal writing method and server for a file server running multiple file systems, which are used to solve the problems in the prior art that the file system state is set to the write-protected state due to insufficient memory of the file server. Business interruption issues such as creation, deletion, modification, etc.

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