What is data recovery? Under what circumstances will we use data recovery? I believe that many friends have a lot of questions about this. Let me answer you today to see what data recovery is like and why it can help us recover deleted data. When we delete or lose some files that cannot be found, we will think of data recovery. There are four types of data recovery. I believe many people have only heard of one or two of them. Let me introduce them in detail below. .
Data recovery can be divided into four categories, which are soft recovery, hard recovery, data recovery system or closed system recovery, and overwrite recovery. I believe everyone is familiar with the first two types. It doesn’t matter. I will introduce them in detail here. After that, you will understand, and maybe you will be interested in data recovery.
Soft recovery, that is, software recovery, there are many data recovery software on the market, as long as a simple scan and recovery operation can retrieve the data you want, soft recovery is only for data caused by logical failures, viruses, Trojan horses, accidental deletion, formatting, etc. Lost, as long as the physical media is not substantially damaged, then using soft recovery is a good choice, such as Zhuan Zhuan Master data recovery software is a very good data recovery software, you can go to the official website to download and use: https://www .huifuzhinan.com/
Hard recovery, when our hard disk or U disk and other storage devices are faulty or damaged, it may cause data loss. Hard recovery is mainly due to damage to the hard disk circuit board, disk body, motor, magnetic track, disk, etc. Or the system does not recognize the disk due to hard disk firmware system problems. Due to the difficulty of recovery, professional technicians are usually required to operate.
The database system or closed system recovery
is often very complicated in itself, and has its own set of complete protection measures. For general data problems, data security can be guaranteed by its own redundancy. Such as SQL, Oracle, Sybase and other large database systems, as well as MAC, embedded systems, handheld terminal systems, instrumentation and other systems are often difficult to restore.
Coverage recovery
is also a relatively difficult recovery technology that requires more resources to be invested. It is generally not suitable for civilian environments and can only be achieved with cutting-edge technology.
In life and work, we often encounter data loss problems. Whether it is human misoperation, malicious program damage, or hardware failure, as long as it is recovered in time, there is a chance. Although there is no guarantee that data can be recovered, as long as it is not professional data corruption, in most cases it is still recoverable. Hope this article can help you.