How to create a data disaster recovery and backup system using storage devices

After analyzing the technologies related to data backup, I believe you have some knowledge about data backup, how to make full use of the current mainstream data backup technology to build a data Disaster Tolerance solution for enterprises or individuals is inseparable from the selection of correct storage devices. The increasing data size has stimulated the enthusiasm of various storage manufacturers to develop new products. IT has also promoted the sales of various storage devices. Facing the current situation of dozens of storage devices in the IT market, how to choose a suitable storage device for our service, with this problem combined with the data backup technology, for the current mainstream professional storage devices to carry out a one-to-one analysis.

1. Disk Array Cabinet

A disk array is composed of multiple types, capacities, interfaces, and even dedicated hard disks or general hard disks with the same brand name, allows you to read and write disk data in a fast, accurate, and secure manner. This type of storage device generally uses data backup and magnetic rail backup as the main data backup technology, the advantage is that it has high reliability, security, stability, at the same time, its storage capacity is relatively large compared with other storage devices. Such devices are usually the core part of building a Central Storage System in Enterprises with large data volumes.

Behind the many advantages of the disk array, the high price is a hurdle for many enterprises. The price of a professional disk array is usually tens of thousands or more than 100,000, selecting the appropriate professional data storage/backup software is also painstaking, and the expensive value of the disk array also requires professional IT staff to "Serve ", payment for data restoration after data destruction due to device or human operation problems has also caused headaches for many enterprises, this also means that you need to pay more for the maintenance and management of the disk array cabinet than other storage devices.

After a comprehensive analysis of the disk array, we can find that the disk array is only the "darling" of enterprises with a wide IT budget. IT investment in most of China is not plentiful, disk Array cabinets are not the first choice for small and medium-sized enterprises with small data volumes.

2. File Server

As a storage device that is widely used at present, its function is mainly responsible for the management and processing of internal files in the enterprise, the daily data management and processing work of the file server usually includes data upload, download, sharing, storage, backup, and so on.

File Servers usually adopt direct data backup. Of course, the backup technology and method can be improved by configuring the relevant data backup software with additional charges. The file server usually uses a processor with high performance, a large memory capacity, and a well-working motherboard as its core component, to some extent, this improves the efficiency and stability of the file server. At the same time, a general file server usually uses a general operating system as its operating platform, therefore, it has some advantages in operability and ease of use.

In terms of practical application, when using a file server as the core device for data backup and storage, enterprises usually use dual-host disaster tolerance, that is, by using two file servers to build a dual-host backup system, this ensures data security to a certain extent, and also plays a certain effect on Network stability and security. For many small and medium-sized enterprises, file servers are favored by users by virtue of their powerful file management and processing capabilities ". What are the risks of building internal data backup and disaster tolerance systems with file servers as the core?

The preceding dual-Machine backup is used as an example. Under normal circumstances, it is indeed "double insurance" to ensure data security. However, when a problem occurs, if a non-fatal fault occurs on one of the file servers, or data is damaged or wrong due to some reason, the data in another machine may also be affected, at this time, payment for data recovery is also a headache. The general operating system of file servers is vulnerable to injuries in the Internet era where viruses and hackers are "rampant; the powerful performance of the file service has made some small and medium-sized enterprises "greedy". Similar situations are not uncommon. The file server acts as a file management and processing service, on the one hand, it must bear the responsibility of accessing and managing the entire external network. Heavy loads are an important cause of instability of the file server. Finally, from the perspective of investment, file servers have poor compatibility with data backup and storage on heterogeneous platforms. For example, enterprises engaged in design work usually use the following operating platforms, for example, the finance department's WINDOWS or LINNUX platform and the design department's MAC platform. In this case, if enterprises want to back up the data of these departments, they usually need to purchase several Operating Platform servers, which virtually increase investment in IT equipment.

After comprehensive analysis of the relevant elements of the file server in data backup, we can find that if the file server can work with other devices to solve related deficiencies, such as the support of heterogeneous platforms, it is a good choice for most SMEs.

3. optical disc tower

The optical disc tower is composed of several or more CD-RW/DVD-RW drivers in parallel, through the software to control the read/write operations of a certain optical drive, so that it can automatically read information according to people's requirements, this storage and backup equipment has won the "popularity" of some enterprises for its good cost effectiveness in the era of expensive storage devices such as file servers and high-capacity disks ".

This type of device uses data backup technology. The advantage is that data can be saved as needed and the stored data can be moved. The disadvantage is that the capacity of the disc is very limited and the cost of purchasing the disc is high, the recorder has a short life, manual operation, and the disc is easy to lose or damage, and the data management and recovery work is cumbersome.

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