Most modern large-scale enterprises have many servers, providing different service for Internet and Intranet users, such as database or email system. Maintaining the business continuity is an important aspect for today's enterprise users to consider during data storage . The system failure may cause production suspension, the decrease of customer satisfaction , or even customer loss, the declined competitiveness of the enterprise. Therefore, to maintain the business continuity is one of the important indices for user in choosing a computer system. Actually, the most important means to protect business continuity is improve the reliability of computer system and reduce the loss of data to a minimum
Account background: Taiji Group is an incorporated company growing out of Sichuan Fuling Pharmaceutical Factory. It has been listed on the Shanghai Stock Exchange since Oct 25th, 1997, with registered capital up to 252.6 million yuan and the total assets more than 6 billion yuan today.
Taiji Group has systems in need of protection listed as below:
Backup of the critical applications and database mentioned above has become a part of the daily operations, to ensure that important data can be restored in time when problems arise.
Requirement Specification
In view of current system diversity and further system expansibility, disaster recovery software to realize data is an excellent solution for data protection, that is, using backup software to replicate data in distance through IP network.
The enterprise data-level disaster recovery system mainly aims at providing risk prevention mechanism and disaster recovery measures for business data, besides which it is supposed to improve business continuity, reduce risk and data loss to an acceptable level, and improve service quality.
The goal of disaster recovery system construction at that period is as follows:
Disaster Recovery Scope: A full-service data-level disaster recovery plan, aims to establish and perfect operation maintenance system and disaster recovery mechanism of disaster recovery system, guarantee that the centralized storage data can not only improve the logic protection of the local data but also realize remote data disaster prevention.
Location: B center (trans-provincial remote disaster recovery center) located in different place from A center
Capacity: At least meet the capacity requirements of current business data.
Future Extension: Disaster recovery system should not only reach the goal of data-level security assurance, but also facilitate the deployment of future application-level disaster recovery.
Backup software should support uniform Web monitoring/configuration interface; it should also support data files backup and protection, various database backup and protection, real-time application protection, remote disaster recovery, etc. on diverse operating system platform (windows, Linux must be included at least ); it can capture byte-level incremental data bypass and formulate corresponding strategies for data backup with log function, containing start-up time, storage path, traffic control, backup mode, state management, thus replicating updated data to local or remote backup system. If local backup system failed, it could be restored from remote backup system; it can accomplish CDP(continuous data protection), restoring data at any point.
To backup the whole system in a limited bandwidth environment, the solution combines with the customer's specific requirements and gives priority to reliability, efficiency and safety, detailedly describing the planning and implementation with the help of I2Soft software .
Framework Review
With regard to actual real environment and requirements, I2Soft provides solutions as below. For details, please refer to the topological graph:
As solution above, I2Soft software is installed on the related host and backup servers, mainly for real-time data replication and protection between two servers. Details are as follows:
I2soft clients are installed on Physical production server (essentially, SQLServer and Oracle database server), through which the directories and files to protect can be continuously backuped in real time.
Deploy I2soft on the virtual server of production center, directly carrying through CDP for the corresponding files.
Deploy a CDP server on which I2 server module is installed in disaster recovery center, thus receiving the data sent by production server in real time. When something wrong happened, it can offer real-time data recovery service.
All the configuration and monitoring can be realized through disaster recovery machine on the web, such as disaster configuration, traffic monitoring, restoration, etc. Control machine can be of any server in the grid, on which I2 server module is installed and can be received by all the servers under management.
I2Scsft's byte-level data capture can greatly reduce the data transfer volume, thus perfectly realizing data replication in the limited bandwidth and poor network environment.
I2CDP can make a complete record for the data change in the server, providing snapshots at each time point and complete CDP recovery. When something wrong happened to the data source, it can restore the data at any time point.
For future system expansion, all it needs to do is install i2Soft modulec in the new system to protect, without purchasing isomorphism hardware or other disaster module. No change is done to disaster end, but CDP real-time protection can be carried out on the new server.