Mixed storage equipment-based virtual mixed file system

Abstract

The invention discloses a mixed storage equipment-based virtual mixed file system. The virtual mixed file system comprises a byte-addressable random access memory-based file system and a block equipment-based file system; mixed storage equipment comprises a byte addressable random access memory and block equipment; the block equipment is a disk or a flash memory-based solid-state hard disk; the byte addressable random access memory is connected with a memory bus, uses a memory address to carry out access, and uniformly carries out addressing with a memory; the byte addressable random access memory is mounted on the byte addressable random access memory-based file system; the block equipment is connected with an I / O bus and mounted on the block equipment-based file system; and address spaces of the virtual mixed file system are expressed by continuous block numbers, are logically connected in sequence and are accessed by using a uniform logic address. According to the virtual mixed filesystem, the space utilization rate and the storage system access performance of the file system are improved.

Description

technical field [0001] The invention belongs to the technical field of computer storage, and more specifically relates to a virtual hybrid file system based on a hybrid storage device. Background technique [0002] With the continuous development of computer storage technology, new storage media are constantly emerging and added to the storage system. These new storage media generally have the advantages of non-volatility, high storage density, low power consumption, radiation resistance, etc., and the read and write performance is close to that of DRAM (Dynamic Random Access Memory, Dynamic Random Access Memory). Because new storage media have performance characteristics different from traditional disks, traditional disk-based file systems are no longer suitable for new storage media. Many researchers at home and abroad have designed and developed corresponding file systems for new storage media. However, these file systems themselves also have Certain limitations and scop...

AI Technical Summary

Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a virtual hybrid file system based on hybrid storage devices, thereby solving the unreasonable layout and scheduling of data with different types and characteristics among file systems in the prior art , the technical problems of low space utilization of the file system and poor access performance of the storage system

Images