Support any point data fallback to do real CDP

In disaster recovery backup and security storage industry, data restore is a required course, but also basic skills, but the market can fully support any point of data recovery is very few products. In fact, only real-time backup to achieve any point back, is the real CDP, and only true CDP, can reduce data loss to the minimum, or even 0 lost. And the easy to remember the preparation of excellent disaster recovery backup system has the international advanced technology, and become the pride of domestic software.

Understanding 2 kinds of common data recovery methods for disaster-tolerant backup products

Today's disaster-recovery backup products support 2 common ways of recovering data: One is "Specify point data Fallback", in English, in the case of fpit, which means that after a disaster, only data can be recovered to a specified time (for example, a disaster occurs 11 o'clock in the morning, but the data can only be recovered to 10 points. , the data between 10 points to 11 points is all lost), and the other is "any points of data fallback", the English for any point in time, abbreviated as Apit, that is, when the disaster occurs, the data can be restored to any moment before the disaster. Obviously, the data can be done at any point back, will greatly reduce the loss of data loss, or even completely can do the data 0 lost.

Real-time backup rpo=0 not necessarily be able to do any point data fallback

In the disaster recovery backup market, there are many manufacturers and products, can do real-time backup products also have a lot. The so-called real-time backup (realtime Backup) is to capture and save the changed data in real time, that is to say, rpo=0. However, rpo=0 does not mean that data backed up in real time is 100% recoverable and available. In other words, rpo=0 real-time backup products can guarantee the loss of data 0, but if the source data is mistakenly deleted or structured data (database data) logic error can not recover the wrong delete data, nor zero loss to repair logic errors. To be able to recover the accidental deletion data, 0 loss repair logic error must be able to do any point fallback recovery and ensure the integrity of the recovery data. In-market backup recovery products with "mirror" technology can be backed up in real time but can not be back, there is a part of the "Mirror + snapshot" of the combination of technology products, real-time backup can be achieved, but also can do "Specify the point of data back", but can not guarantee "any point data back", nor can you guarantee the integrity of recovery data back.

Little knowledge of what is an RPO

The RPO is shorthand for the English recovery point objectives, which means that the smaller the better, and the less time the RPO can lose the data. When Rpo=0 is a real-time backup, it means that the backup system can record data changes in real time, in sync with the real world clock.

Easy to remember and support any point data fallback to create true CDP

In many disaster-recovery backup products, and force-memory (UPM) of the preparation of the excellent disaster-tolerant backup system (Bit Guard) not only for all the databases on the market: Oracle, MS SQL Server (including the latest MS SQL Server 2012), MySQL, SyBase , DB2, Informix, interbase, such as automatic monitoring, continuous capture and backup data changes, real-time, accurate backup, do rpo=0 (Figure 1), more in the event of an accident, these databases to achieve "any point data fallback", and ensure that the rollback of the data 100% available. Not only to ensure the integrity of the data, but also to ensure the integrity of database transactions, which is ahead of the industry (as shown in Figure 1).

Fig. 1 To achieve "any point data fallback"

In the field of disaster recovery backup, data continuous protection (cdp,continuous) is a new technology. To achieve continuous data protection, it is necessary to support "data fallback at any point".

and force memory is easy to prepare (bit Guard) not only supports "any point data fallback", and its support from the machine (that is, backup machine) in 1-2 minutes automatically take over the main station IP and machine name, and be able to start the backup database, while opening the corresponding services, so as to ensure that the network and services are not interrupted ( That is to say, rto≈0 can be implemented. In the implementation of data protection at the same time, the continuity of the business to avoid the huge loss of enterprises (as shown in Figure 2).

Figure 2 Good for true CDP and business automatic takeover

With the help of good preparation, enterprises can achieve disaster recovery backup International standard SHARE78 definition of the highest-6th level, that is, the loss of data 0 (Zero data Loss).

It is worth mentioning that the Chongqing Iron and Steel General Hospital data Center in the 5.12 earthquake stopped working, but in another building, the preparation of the excellent system immediately took over the business, to ensure the timely earthquake relief, save more people's lives. Lhasa department store because of the use of special products and solutions, in its supermarket card library error, timely recovery of the correct data, also avoid huge losses.