Introduction: Realizing data backup does not necessarily require capital investment. When the importance of data is not high, the system is simple, and there is no need for automation and long-term preservation, it is possible to use existing resources to build a data backup system without any capital investment.
Zero investment solution
Realizing data backup does not necessarily require capital investment. When the importance of data is not high, the system is simple, and there is no need for automation and long-term preservation, it is possible to use existing resources to build a data backup system without any capital investment.
For example, back up personal data in a simple office environment. In desktop operating systems such as Windows and Linux, most of them integrate some simple data backup functions. These backup functions are sufficient to realize automatic and regular backup of common files. There are also many small backup software with good functions that can be downloaded from the Internet. Although these software cannot support professional-level databases, they are sufficient for general desktop office systems.
As for the storage of backup data, you can choose the free space of the local disk or the space of the network server. Generally speaking, it is safer to choose the space of the network server, because once the local disk fails, the entire disk is likely to be inaccessible, so the backup data stored on the local disk will lose its meaning.
Summary: Stand-alone backup; small amount of data ; No long-term storage requirements, just to prevent data loss; no professional database applications; the system can be shut down at any time; manual data recovery.
10,000 to 20,000 yuan investment solution
For some systems that need to store data for a long time, it is not economical to simply store the backup data on the network server. A tape drive and some tapes should be purchased for long-term storage of backup data. medium. Generally, the price of a tape drive is about 10,000 to 20,000 yuan. After purchasing a tape drive, there is no money to buy backup software, it doesn't matter. The problem can be solved by still using the backup function that comes with the system. In fact, many system data needs to be stored for a long time, but there is no high automation requirement, and the restrictions on planned downtime are not strict. In this case, if there is no large database application, data backup requirements can generally be solved.
For example, personal-level websites, small medical systems, small file systems, etc. Compared with personal desktop systems, these systems have a larger amount of data and require relatively long-term storage of data. But the data format is basically file format, there is no complicated database structure, and it is completely permissible to stop data backup. For such a demand, the backup software integrated in the operating system plus a tape drive can fully realize the daily automatic backup of the system.
Summary: Stand-alone backup; general data volume; long-term storage of data is required; no professional database application; planned shutdown allowed; manual data recovery.
30,000 to 50,000 yuan invested in the solution
When the system needs to back up data through the network, the integrated backup function of the operating system cannot meet the demand. At this time, in addition to purchasing tape drives, you also need to purchase more professional backup software to achieve network backup. Generally, the price of backup software products on the Windows platform is not high, and the software investment of 20,000 to 30,000 yuan should be able to achieve the design goals. Adding the cost of the tape drive of 10,000 to 20,000 yuan, the overall cost can be controlled between 30,000 and 50,000 yuan.
Such a system can already support certain database applications and can realize automated data recovery. For medium-sized office systems, small professional websites, and small-scale campus networks, this system has fully achieved the purpose of data protection. It should be noted that this solution is only for the host system of Windows, Linux and other platforms. If the host platform is a Unix minicomputer, such investment will not be able to meet the functional requirements.
Summary: Simple network backup; Windows operating system platform; average data volume; long-term storage of data is required; certain database applications; planned shutdown allowed; automatic data recovery.
100,000 yuan investment solution
When the importance of system data is high, the investment in data backup will increase accordingly. Especially when the system is required to be available 7x24 hours and there is no time window for the backup work to stop the backup, the backup system must have the ability to back up open files, the so-called online backup technology. This requires the backup software to be sufficiently powerful. At the same time, with the increase in system automation requirements, manual management of tape media is difficult to meet the needs of the system. When the amount of data is not very large, you can consider purchasing an autoloader (AutoLoader) for quasi-automated tape management.
Under such requirements, the demand for funds invested in both software and hardware has increased. Generally, the investment for online backup software on the Windows platform should be 60,000 to 80,000 yuan, and the price of the autoloader is also about 30,000 yuan, so the overall system investment is basically about 100,000 yuan.
The backup system established with this investment can support a fairly large-scale Windows network environment, where files, database applications, mail systems, user information and other data can be centralized and unified backup protection. The backup process is completely automated, without manual intervention. Moreover, when a node in the system fails, data recovery is completely automated and intelligent. As long as a backup medium and a bootable system startup disk are provided, the backup software can restore the state before the system failure.
The application environment of this backup system is also very extensive. The campus network of primary and secondary schools, the securities trading business department, the office network system of government agencies, the medium-sized enterprise network system, and the e-commerce website waiting are basically at this level of demand. From a certain meaning, this level of system application is the most extensive. This kind of data backup method can be applied in a more complicated network environment basically composed of Windows platform. From another aspect, users at this level are also the main force that constitutes the backup market demand.
Summary: Medium-sized network backup; Windows operating system platform; large data volume; long-term storage of data; typical database applications; mail system and other professional data; basic non-stop backup; intelligent data recovery.
More than 300,000 yuan investment
When the data volume reaches the terabyte level, a single tape drive and autoloader can no longer meet the needs of automated management, and a tape library device with a higher degree of automation is required. Generally, the operating system platform in this environment will be based on Unix, or a more complex mixed system of multiple operating system platforms. In this environment, the complexity of data protection has further increased. In a typical hybrid platform environment, the data backup system investment is basically more than 300,000 yuan.
If 300,000 yuan is used for calculation, the software part accounts for about 30-40% of the investment, which is used to purchase high-end backup software server and client agents that support Unix platforms, as well as some database interface programs and tape library support programs, etc. section. The other 60~70% of the funds are used to purchase tape library equipment and a certain number of tapes. If you need to implement LAN Free data backup under the SAN architecture, you need to add about 100,000 yuan in capital investment to build the optical fiber switching part of the SAN.
This solution can not only fully realize the fully automated data backup work of the hybrid system platform, support various large-scale database applications, and realize 7x24-hour non-stop online data backup, but also realize LAN Free data backup without occupying network resources. . At the same time, in such a solution, the function of stupid recovery of data is no longer important. Due to the complexity of the system structure and the complexity of the data relationship, the stupid intelligent disaster recovery without manual intervention will often cause inconsistencies in the system state. Lost the meaning of data recovery. In this level of application environment, the system needs more flexible control over the data recovery method and content. The system should be able to provide selective recovery of data and state recovery at a specified time.
This level of data backup system is generally used in large-scale mass storage systems. For example, large-scale enterprise center data system, provincial and municipal-level state-specific information system, scientific research institute professional information system, general information retrieval system, etc. These systems basically completely eliminate system failures, extremely high requirements for the continuity, stability and availability of business systems, and completely do not allow planned and unplanned downtime under any circumstances. Generally, there are strict and clear restrictions on the occupation of system resources by backup tasks. Generally, backup data streams are not allowed to occupy a large amount of network bandwidth resources. In short, at this application level, the backup system has been regarded as an independent system, and the backup work is already an indispensable part of the normal operation of the entire system. The so-called high-end backup market refers to the market demand in this field.
Summary: Large-scale network backup; Unix or multiple operating system platforms; data volume up to TB level; long-term data storage; large-scale database applications; other professional data such as mail systems; complete non-stop backup; flexible data recovery; no network bandwidth Resources.
Investment of more than 1 million yuan
For data center-level storage systems, the construction of data backup systems has also greatly increased. This is mainly due to two reasons: the huge amount of data and the increase in security requirements. In fact, in the data center-level ultra-large storage system, the functional requirements of the backup system are not more than those of the previous level. However, its data volume of tens or even hundreds of terabytes has doubled the hardware cost of tape library equipment. In addition, once these data are lost or damaged, the consequences will be very serious, so most of their online storage systems also use remote disaster recovery and other means, which further increases the software and hardware costs of the backup system that cooperates with it. Generally, a data backup system that cooperates with a remote disaster recovery system has an investment amount not less than 1 million yuan.
In this kind of super-large system, the software investment ratio of the backup system is generally 20~30%, and the hardware investment accounts for the majority, 70~80%. There is basically no change in the purchase content. The software part is basically the backup server, backup client, database interface module, tape library support module, etc. For disaster recovery systems, there are sometimes special online storage device interface modules. For the hardware equipment part, it is basically the tape library and its connected equipment. Of course, in such a large-capacity environment, purchasing tape is also a capital investment that cannot be ignored.
What's interesting is that with such a large investment, the data backup system built has very few chances of facing system failures. Because this data center-level storage system has reached its peak in data availability requirements, most of the online storage systems use the most stable products currently and cooperate with the most advanced technology to ensure that data is not lost. So does it mean that such a backup system is meaningless? Of course not! In fact, in such a large data center, another significance of the backup system has emerged, that is, the archiving of files. We know that no matter how advanced the technology of the online storage system is, it can only guarantee that the current data will not be lost or damaged, and cannot help the system record historical data in the past, and the function of the backup system is here. The data and status that need to be retained for unified analysis are completely retained in the backup system.
For example, the weather data storage system of the National Meteorological Center, the billing data of the telecommunication billing center, the depositor transaction data of the bank data center, and so on. These storage systems have very powerful online storage systems, and their data protection is so strong that even in the event of a disaster such as a fire and an earthquake, it can ensure that data will not be lost. However, these systems have established a huge investment backup system, the main function of which is to save important historical information and status for unified data analysis and data mining.
Of course, in data center-level storage systems, accidents will occur very occasionally. Perhaps everyone still remembers the accidental failure of the network system at the Capital Airport not long ago. This shows that no matter how strong accident prevention measures are, there will inevitably be a time when a hundred secrets are lost. At this time, the role of the backup system was flashing, and it was enough to cover the huge investment. In fact, if there is no backup system, the accident at the Capital Airport will cause more than just dozens of minutes of delay.
Summary: Data center-level network backup; Unix or multiple operating system platforms; data volume up to tens of TB; long-term storage of data; large database applications; mail systems and other professional data; complete non-stop backup; flexible data recovery; no Occupy network bandwidth resources; cooperate with remote disaster recovery system; realize data archiving function.