Importance of website server data backup

Lao Zuo met an incident last weekend, when a test project built by a server of a domestic host company suddenly failed to connect with a monitoring alarm. According to the usual false warning information, it was really possible to open envy manually and ignore it. However, after this manual opening, he found that it was not accessible, and at the same time, it was also impossible to connect to the remote login server, Ping was also unable to ping, so the host company was contacted to inform that the hard disk may be damaged, and the data may not be recovered, even if it needs to recover, it needs to find a professional data disk to recover from a third party.

Considering the demonstration of the test project, Lao Zuo did not back up the data. The earliest data was last year, but it did not have a great impact. Only the server needs to be reconfigured for recovery or replaced. This information can remind us that any host company may have accidents. Some of them are data loss caused by our misoperation, and some are problems of the host company. Lao Zuo has encountered two cases of damage to the hard disk of domestic host companies.

In view of this, we need to pay more attention to the data backup of websites and servers. How do our webmaster friends do backup? Here, Lao Zuo will share some common backup methods and methods. If you see them, it is recommended to prepare for the projects in need.

First, manual website backup

If the data on our website is not updated very frequently, for example, you only have one article in a few days. There is no need to set up synchronous backup or daily backup. We can set a manual backup every week or every half month. Of course, if you set automatic backup, you can also do it. Even if there is a server problem, we don't lose much.

Second, synchronous incremental backup

Synchronous incremental backup is for those with more data and many data increments every day. If we back up once a day or a few days, we will lose more data. We will use daily regular backup or incremental backup, which is the synchronous hot backup mode commonly used by large websites. Lao Zuo has written several articles about incremental backup before:

1、 Linux VPS uses Rsync to realize synchronous incremental backup of website file/server data

2、 Configure RSYNC to realize scheduled synchronous image VPS website backup and replace incremental backup files

Third, regular snapshot backup

At present, most host companies charge for snapshot backup, but the security is relatively high. If we find it troublesome to manually backup or configure synchronous backup, we will set regular backup through the snapshot backup mode provided by the server vendor. Our frequency setting is larger, so the cost is relatively small. If some of our netizens use the backup module that comes with the WEB system and is bound to third-party objects for storage, we can also set up regular packaging and backup.

In a word, there must be a suitable backup method for you. Sometimes, we don't expect the host company to be stable. Although large businesses have higher stability, there may be some accidents. For small host companies, the probability may be higher. If the data is backed up regularly on our hands, we can switch other businesses and machines at any time.