Four-stage addressing method for tile recording disk

Abstract

The invention discloses a four-stage addressing method for a tile recording disk. The four-stage addressing method comprises the following steps of: dividing a logic space of the tile recording disk into a four-stage structure comprising a region, a section, a block and a sector; addressing the divided four-stage structure by a radial addressing mode; optimizing region intervals of the divided four-stage structure by adopting symmetric stack type magnetic track arrangement; and performing read-write operation on the tile recording disk with the addressed four-stage structure. Aiming at tile recording disk random write limitation, a data structure and the track arrangement of the tile recording disk are optimized; due to the advantages of high read-write speed of a flash memory and a memory, a tile recording disk system with a three-stage architecture is formed, so that the problem of low random write performance of the conventional tile recording disk is solved; the available capacity of the disk can be multiplied, and the performance can be prevented from being reduced; and the read-write speed is increased.

Description

technical field [0001] The invention belongs to the technical field of data storage, and more specifically relates to a four-level addressing method of a tile recording disk. Background technique [0002] The vigorous development of the Internet and the digital transformation of society have led to an explosive growth of digital data. According to statistics from the market analysis company IDC and the storage device company EMC, the total amount of global data content was 161EB in 2006, 281EB in 2007, 487EB in 2008, and an astonishing 1800EB in 2011. The total amount of data has grown more than 11 times from 2006 to 2011, growing exponentially at a rate of 61% per year. IDC predicts that the total number of files will increase by 75 times in the next 10 years. Explosive information growth will inevitably lead to a substantial increase in the demand for storage capacity. At the same time, the continuous rapid growth of storage demand poses an important challenge and oppor...

AI Technical Summary

Problems solved by technology

[0009] In view of the defects of the prior art, the purpose of the present invention is to provide a four-level addressing method for tile recording disks, which optimizes the data structure and track layout of tile recording disks for the random write restrictions of tile recording disks, and combines flash memory With the advantage of fast read and write speed of memory, a three-level architecture tile recording disk system is formed to solve the problem of poor random write performance of traditional tile recording disks, so that it can avoid performance degradation while doubling the available capacity of disks, and improve Read and write speed

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