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Network Backup

Computer terminology
data It is an intangible asset, so backup is very important. stay computer The application is very popular today, Data backup The importance of. Traditional backup only copies daily business records in the form of files or saves them on another machine equipment Medium. However, in case of network system failure or disaster, only rely on these data backups to restore Network work It is far from enough. This is because the data copy cannot leave the file History For tracking, the NDS and Register And other information, especially some large enterprise business networks today have developed into NetWare , Windows NT, and UNIX The backup and recovery of network systems are more complex and difficult for multi platform real-time operating systems including systems such as.
Chinese name
Network Backup
Backup objects
data
technical support
Hardware level physical fault tolerance and software level Data backup
Requirements
Automatically span the entire system network platform
Classification
UNIX system workstation
Source of tourists
Enterprises

catalog

meaning

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Therefore, a complete network backup should include hardware level physical fault tolerance and software level Data backup And can automatically span the entire system network platform, which mainly includes the following aspects.
1. Structure Dual fault tolerance system
In the enterprise business network, the most critical equipment is File server In order to ensure the continuous operation of the network system, the file server must be used Hot Standby Fault tolerance technology To resolve hardware failures. Physically guarantee Enterprise application software The environment required to run.
2. Backup of various databases
nowadays Enterprise applications The database of the system is already quite complex and huge, and it is only used Backup files The simple way to back up the database is no longer applicable. Can you transfer the required data from the huge Database file It is an important part of network backup.
3. Network failures and disaster recovery
The ultimate purpose of network backup is to ensure the safe operation of the network system. When the network system has a logic error, the network backup system can quickly restore the network system in the shortest time according to the backed up system files and various database files.
about network administrator For example, backup is a heavy task, requiring a lot of manual operations, which is time-consuming and laborious. Therefore, network backup should be able to realize scheduled and real-time automatic backup, so as to reduce the burden of network managers and eliminate the mistakes caused by manual operations.

classification

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The server is the core equipment of the network, and the key work of network backup is to backup the server. Server's Backup mode There are online fault-tolerant backup (real-time dynamic backup) and backup backup (static backup), which closely cooperate to form a complete network backup to ensure the safe and stable operation of enterprise business.
The necessity and characteristics of dynamic real-time backup
Due to the growing dependence of all sectors of society on computer technology, and the competitive pressure from peers in various application fields, the operational reliability of various key business processing hosts has gone far beyond the scope of computer technology itself, and it has become a high-profile social behavior.
Contents and requirements of enterprise business network backup
The data to be backed up for enterprise business network includes system data and business data of all platforms. The system data mainly includes data dictionary , permission setting, storage allocation, network address and system configuration Parameters. For example, network user name, user attributes, user permissions, user registration text, executable files and configuration files of application software, etc.
Due to the high degree of computerization of modern enterprises Computer network system It also has a strong dependency, which puts forward higher requirements for the network backup system.
First, all kinds of data can be cross platform Real time online Backup. That is, the backup of data and files across various system platforms can also be implemented when various files and databases are opened, including some key workstations.
Second, with automatic start data recovery And disaster reconstruction mechanism. That is, in case of network failure, the entire network system, including NT server and NetWare Servers and
UNIX System workstation.
Third, it has the functions of automatic backup and scheduled backup, and prompts the computer room personnel in case of errors.
Fourth, it has network anti-virus function and supports disk array And clustered systems.