What Is Continuous Backup?

Data backup is the basis of disaster recovery. It refers to the process of copying all or part of the data set from the hard disk or array of the application host to other storage media in order to prevent data loss caused by system operation errors or system failure. Traditional data backup mainly uses internal or external tape drives for cold backup. However, this method can only prevent human failures such as operation errors, and the recovery time is very long. With the continuous development of technology and the massive increase of data, many enterprises have begun to use network backup. Network backup is usually achieved through professional data storage management software combined with corresponding hardware and storage devices. ^[1]

LAN backup, LAN Free backup and SAN Server-Free backup. LAN backup can be used for all storage types, LAN Free backup and SAN Server-Free backup can only be used for SAN architecture storage.

LAN-based backup, traditional backup needs to be installed on each host

Threats to data are usually more difficult to prevent. Once these threats become reality, they will not only destroy the data, but also the systems that access the data. The main causes of data loss and destruction are as follows.

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The determination of disaster recovery level is an important consideration for disaster recovery construction of information systems. The Code classifies disaster recovery capabilities into six levels.

Level 1: Basic support. It is required that the data backup system can guarantee data backup at least once a week, and the backup media can provide off-site storage. There are no specific requirements for backup data processing systems and backup network systems.

Level 2: Support for spare venues. On the basis of meeting the requirements of Level 1, it is required to equip some data processing equipment required for disaster recovery, or to deploy the required data processing equipment to a standby site within a predetermined time after a disaster; it is required to equip some communication lines and corresponding networks Equipment, or after the disaster, can deploy the required communication lines and network equipment to the backup site within a predetermined time.

Level 3: Electronic transmission and equipment support. Full data backup is required at least once a day, and the backup media is stored off-site. At the same time, the key data is periodically transferred to the standby site in batches using the communication network multiple times a day. Equipped with some data processing equipment, communication lines and corresponding network equipment required for disaster recovery.

Level 4: Electronic transmission and complete equipment support. On the basis of level three, all data processing equipment, communication lines, and corresponding network equipment required for disaster recovery are required to be configured and in a ready or running state.

Level 5: Real-time data transmission and complete equipment support. In addition to requiring full data backup at least once a day and off-site storage of backup media, it also requires the use of remote data replication technology to use a communication network to copy key data to a backup site in real time.

Level 6: Zero data loss and remote cluster support. It is required to realize remote real-time backup with zero data loss; the backup data processing system has the same processing capacity as the production data processing system. The application software is "cluster" and can be switched in real time.

It can be seen that the higher the level of disaster recovery capability, the better the protection effect on the information system, but at the same time the cost will also rise sharply. Therefore, in disaster recovery construction, how to determine a reasonable disaster recovery recovery level for business systems is a major problem. It is also pointed out in the "Specifications" that it can be determined according to the principle of cost-risk balance (that is, the balance between the cost of disaster recovery resources and the possible losses caused by risks). A regular data backup mechanism for important data should be established, and a complete incremental data backup should be performed at least once a day, and the backup media should be stored in a safe area. Real-time backup of key data should be performed in the same city and off-site to ensure that business applications can be switched in real time. A disaster recovery plan should be developed and regularly tested to ensure the correctness of each recovery procedure and the overall effectiveness of the plan.

It is another term for server high-availability applications. The English translation is: high available, and what we usually call hot standby is based on free translation, which also belongs to the high-availability category.

1.Office documents (.doc, xls, ppt, etc.)

Customer data,

You can choose the plan that suits you according to your actual situation.

A clear set of ideas

Which files must be backed up, which files do not have to be backed up; which can be backed up locally, and which must be

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The terminal backup management system is a highly integrated professional data backup software suitable for data centers and desktop environments. It has four characteristics of comprehensive protection, security, reliability, powerful, and easy to use. Core data backup for government, education and other industries.

Product Features:

Compatible with 64-bit and 32-bit versions of Windows;

Humanized WEB management interface, convenient for administrators to manage and maintain the system;

Encryption algorithms and keys can be set on backup files as required, and the entire system operation can be configured uniformly;

Active backup, multi-media server management, providing centralized management backup strategy, clustered storage media;

Supports encrypted and secure transmission of the contents of data packets when transmitting data;

A new disk-based backup solution that takes advantage of the characteristics of disk media to reduce overall costs.