Shulou(Shulou.com)06/01 Report--

Method 1: back up data regularly

The significance of data backup is that after the occurrence of network attacks, virus intrusions, power failures or operation errors, the original system can be restored completely, quickly, simply and reliably, and the normal operation of the system can be ensured within a certain range. Some enterprises that pay less attention to backup data tend to regret once the server data is suddenly lost or damaged. In terms of data backup, enterprises should regularly carry out tape backup, database backup, network data backup and update, remote mirroring operations, etc., as well as multiple data backups.

Method 2: establish a disaster recovery center

Backup does not mean everything will be fine. In the face of regional and devastating disasters such as earthquakes and fires, only data backup cannot be recovered. At this time, it is necessary to have a disaster recovery center to make remote backup of data to ensure that the original data will not be lost or destroyed. The recovery time of data disaster recovery is relatively long, but the cost is low and the construction and implementation is relatively simple. The main methods are real-time replication, timing replication and store-and-forward replication. Of course, data backup is the most basic, there is no data backup, any disaster recovery is of no practical significance.

Method 3: use raid disk array to store data

Raid is called independent redundant disk array for short in Chinese. To put it simply, multiple independent hard drives are combined in different ways to form a hard disk group, which provides higher storage performance and data backup technology than a single hard disk, thus greatly enhancing the security of data. The different ways to form a disk array are called raid levels, and choosing the appropriate raid level according to the actual situation can meet the user's requirements for storage system availability, performance, and capacity. Using this way to store data, as long as not all the hard drives are damaged at the same time, we can recover the damaged data more easily.

Method 4: do not operate or modify data blindly

Human misoperation is an important reason for data loss. Sometimes files are accidentally deleted, or misformatted, mispartitioned, miscloned partitions, lost partition table information (MBR), etc., a poor handling may paralyze or even downtime the entire server or even the entire system. In addition to not modifying or blindly manipulating the server, it is necessary to set reasonable permissions, such as giving "edit" rights to users responsible for daily updates. This can greatly reduce the misoperation of non-professionals and greatly improve the data security of the server.

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