DBA, six disaster recovery levels do you know?

banks should basically be in levels four, 5 and six.
The larger the total asset size, the higher the level should be.

Disaster recovery level refers to the disaster recovery ability national standard level, the following brief for everyone to introduce six levels of content: Disaster recovery level: the first level to meet the GB "Information System Disaster Recovery Specification" (GB/t 20988-2007) disaster recovery level 1th requirements, storage media for a variety of magnetic media,　　Optical media and paper media, full data backup at least once a week, backup media to be stored off-site, and media access, authentication and dump management system. Disaster recovery level: the second level to meet the national standard "Information system disaster Recovery Code" (GB/t 20988-2007) disaster recovery level 2nd requirements, media storage for a variety of magnetic media, optical media and paper media, to have a high standard of media storage environment and settings, at the same time with the 7x24 hour access control,　　Video surveillance and security management, as well as a 24x7 response to media storage and access services. Disaster recovery level: The third level of media storage and the second level of the same, the computer room environment needs to meet the national standards, in disaster drills and disaster recovery in the room environment requirements.　　In the event of a disaster, the disaster preparedness Center can provide the room space required by the disaster backup center within the agreed time, and provide alternate hosts and peripherals that enable enterprises to use backup tapes as soon as possible to restore the operation of the information system, as well as the necessary communication lines and network equipment, in order to establish the required communication network and restore business as soon as possible Disaster recovery level: fourth level to meet the national standard "Information system disaster Recovery Code" (GB/t 20988-2007) Disaster recovery level 3rd, Level 4 requirements, disaster preparedness Center has retained the enterprise production system online backup of the latest business data, so you can back up the data on the basis of this　　Use the site of the disaster Recovery Center, spare host and peripheral system to quickly restore the operation of the information system; Each service channel and branch office can resume business operations immediately after establishing the network connection with the backup center, further improving the speed of enterprise business recovery. Disaster recovery level: fifth level to meet the national standard "Information System Disaster Recovery Specification" (GB/t 20988-2007) disaster recovery level 5th requirements, after the disaster, its recovery mechanism and fourth level is broadly similar, but its speed is faster,　　Be able to use facilities such as the site of the disaster Recovery Center to immediately resume the information system operation. Disaster recovery level: sixth level to meet the national standard "Information system disaster Recovery Code" (GB/t 20988-2007) disaster recovery level 6th requirements, once the disaster occurs, the remote cluster system of the disaster Preparedness Center will use the real-time latest business data to automatically switch the system,　　Enterprise branches and service channels can automatically switch to the backup center of the network system, in a short period of time to restore the operation of the enterprise information system, to avoid the enterprise business and external services to a standstill event. The level of disaster recovery is first introduced here, if you want to understand how each level of disaster recovery plan is developed,How to restore the system structure and other issues, you are welcome to continue to pay attention to the information or at any time to consult our staff Oh. 

A recent summary of the relevant disaster-tolerant technologies, using Oracle as an example, illustrates:
1, storage replication, IBM XIV remote mirror, Fei Kang CDP, etc.
2, original software class, ADG, OGG
3, third-party disaster recovery software, DSG, etc.
Each has advantages and disadvantages, the current contact of the bank useful CDP, remote mirroring, ADG, OGG, DSG have encountered.

DBA, six disaster recovery levels do you know?