Method for backuping data through adopting dual-disk read-write operation

Abstract

The invention relates to the field of methods for processing electrical and digital data which are accessed, addressed or distributed in memory systems or architectures, and in particular relates to a method for backuping data through adopting dual-disk read-write operation. The method for backuping data through adopting dual-disk read-write operation comprises hard disk arrangement, and is characterized by further comprising the following steps of a, hard disk partition; b, master disk initiation; and c, standby disk initiation. The method has the advantages of high safety, strong reliability, quick operation speed, shortened system breakdown time and convenience in maintenance.

Description

technical field [0001] The invention relates to the field of electric digital data processing methods for accessing, addressing or distributing in a memory system or architecture, in particular to a data backup method using dual hard disks for reading and writing operations. Background technique [0002] With the advent of the information age, data has grown explosively, and 80% of these data are unstructured data. With the increasing popularity and deepening of computer and network applications, the network has become the best medium for storing these data. Using the network to store data requires installing system software on the network system disk and making corresponding user configurations. Therefore, ensuring the security and rapid recovery of data in the system disk is of great significance to improving the high availability of network storage itself. At present, the security measures for the system disk mainly adopt these two schemes. The first scheme is to do disk ...

AI Technical Summary

Problems solved by technology

At present, the security measures for the system disk mainly adopt these two schemes. The first scheme is to do disk mirroring on the system disk. Disk mirroring is also called RAID 1, where RAID is the abbreviation of Redundant Array of Independent Disk, which means independent redundant disk array. Disk mirroring can ensure that the hardware failure of one of the system disks will not cause damage to the system by mirroring the data of one disk to another disk, and can ensure the reliability and repairability of the system to the greatest extent without affecting performance. It has a high data redundancy capability, but the disk utilization rate is 50%, so the cost is high, 3 and this solution cannot guarantee the failure of the software level, such as the file is deleted by mistake, the file system is damaged, and it is attacked by computer viruses, etc.

The second option is to back up the system configuration at regular intervals, but this option needs to be manually executed, which is very accidental. If the system fails, the data since the last backup will be lost; in addition, if the system / firmware is damaged, This kind of scheme is also difficult to recover, recovery point objective (refers to the measure of acceptable data loss in the event of a disaster, also known as RPO) and recovery time objective (refers to the time it takes for the business to resume operations after a disaster occurs, also known as RPO). RTO) are very large