data backup

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1. Reasons for data corruption:

Data corruption can cause irreparable damage, and it can lead to disruption of business and personal work, affecting the normal operation and development of the enterprise. If some key data is lost or damaged, if it cannot be recovered, it may cause the previous painstaking efforts. East stream. The reasons for data corruption are:  

★  The relevant platform for data processing and access has failed: 

★The  operating system has a loophole;  

★ The equipment hardware system has failed;

★ Man-made operational errors;  

★ Attacked by malicious network;  

★ Network power supply system failure, etc.;

2. How to protect the data:

Disaster recovery backup is the last and most secure defense line to protect data.


data backup

1) Backup type

◆ Host operating system based backup

The enterprise business system runs on different operating system platforms (Windows/Linux). In order to ensure the normal operation of the operating system, backup and disaster recovery operations are required for different types of operating systems.

When the operating system of the production machine is seriously faulty and cannot be run, the manual reinstallation of the operating system and configuration of related system files are cumbersome and time consuming. Automatic recovery of the operating system can be accomplished by booting the production machine operating system using the System Recovery Environment CD/ISO image and selecting the most recent successful backup point in time for recovery.

◆ File-based backup

Enterprises have a variety of structured and unstructured files that require fast and efficient backup and recovery of these different types of file systems.

At present, unstructured data is mainly for the protection of design drawings. File system backup supports traditional timed backup functions, such as full backup, incremental backup, and differential backup, and can support filtering and data deduplication of different levels of files. LAN-Free, etc., to reduce the amount of backup data transmission, shorten the backup window, save network resources and storage space consumed by backup data transmission

◆ Database-based backup

The database provides support for the business system. The running database is oracle, SQL, and so on. In order to ensure that these databases are running for 7 x 24 hours, the backup system should provide backup interfaces for different databases to meet the online backup and recovery functions of the database. Supports full and incremental backups, and supports full machine, full-machine full recovery, and single file recovery in the event of a disaster.


2) Backup scenario

◆ Local backup

data backup

a) Deploy backup software or backup machine locally;

b) Back up the files and images to be backed up by the local computer room server to another storage medium or to the backup machine;

c) When the local computer room server is poisoned, the system crashes, or is deleted by mistake; you can use the backup file to recover.

◆ Offsite backup

data backup

a) Open the network through the VPN or dedicated line in the local computer room and the remote computer room;

b) Deploy a set of backup all-in-ones in each of the two places (locally, the backup integrated machine may not be deployed);

c) The local backup machine backs up the server to be backed up in the local computer room, and transfers it to the remote backup machine through compression and double deletion;

d) When data is lost in the local computer room server, it can be recovered by using the files backed up in different places.

◆ Hybrid cloud backup

data backup

a) The local computer room and the cloud environment are connected through a dedicated line or VPN to form a hybrid cloud architecture;

b) Install the hybrid cloud backup service client on the physical or virtual machine to be backed up locally, and back up the data to be backed up in the local computer room to the cloud through a dedicated line or VPN.

c) If the local computer room fails, the backed up data can be restored to the local area as needed from the cloud backup library.