From beginning to end, Wang Chenyu did not mention the product of Gongli Company to this person surnamed Liu. He was completely thinking about how to solve the various data storage problems faced by users. The statement was very fair and fair. This made Mr. Liu think about Wang Chenyu's words. At least Wang Chenyu did not have any interest in him or showed any interest in the project that he currently had the possibility to solve the data storage problem and was launched.

This made Mr. Liu have a strong likes for Wang Chenyu. He felt that he met an expert in this field on the plane. The discussion and exchange of technical issues between the two sides alone would be very helpful to his future solutions to his ideas for solving problems.

Therefore, he raised a new question and wanted to ask Wang Chenyu: "Manager Wang, then according to your statement, isn't the suggestion plan provided by others to us considered a dual-machine hot backup plan?"

Wang Chenyu defended: "No, no, no, the dual-machine hot backup solution is actually divided into two types. The first one proposed and accepted by the majority of users is the dual-machine hot backup solution you mentioned. Saving data on the server is actually called the soft dual-machine hot backup solution. This solution was proposed several years ago, but at that time, the data stored on the server's hard disk can be stored. But now, the data generated by the user's network system has completely increased exponentially, so this soft housing price solution is outdated. Therefore, it has evolved into connecting a disk array between the servers that do dual-machine hot backup to serve as a place to store data. This is called hard dual

Hot standby system. Actually, you can imagine that the server's CPU is the brain that handles various external service requests, but if the data is stored on the server, then the hard disk's raid calculation also needs the server's CPU to complete, which will definitely increase the burden on the server's CPU. However, it is different to have a disk array. The disk array is a professional data storage device, and there are special CPUs and chips that specialize in computing for raids. Naturally, there is no need for the server's CPU to process, which will greatly improve the server's operating efficiency and the efficiency of handling external requests. Therefore, the dual-section hot standby solution of the disk array is a truly complete dual-machine hot standby solution."

Mr. Liu was still a little unwilling to give up and continued to ask: "Then can't this disk array become a single point of failure? If the disk array fails, won't the entire system not be able to run normally?"

After hearing this, Wang Chenyu smiled and said, "I don't deny that any electronic device has the chance and possibility of failure. After all, no manufacturer dares to give users a promise that their products never fail, it is just a matter of chance. It is precisely because many users have such doubts as you, so some people in the data storage industry have proposed several solutions to solve the doubts of such users."

"Oh? What new solutions have been proposed to solve them?"

"Someone has proposed a solution to solve the problem of single point of failure. That is to add san to the dual-machine hot standby system. Such an architecture can ensure that not only one external disk array can be connected between two servers, but two disk arrays can be intervened. Raid1 is commonly known as mirroring between these two disk arrays to ensure that data can still be read and written by the server after a certain disk array fails. This is actually a deformation of the server hard disk mirroring in the soft dual-machine solution, but it is still the same idea. It is safer to save data on the disk array. Of course, in this way, the funds invested by users will definitely increase, but it can indeed solve users' doubts that the disk array is a single point of failure. This solution is particularly suitable for application systems that need to provide services online at all times."

"Then are there any other plans?" Mr. Liu continued to ask.

"Yes, a more common approach is to add another data backup system. The data of the disk array is divided into time periods or the time frequency specified by the user to the backup device through the backup software. This backup device can be another disk array, a tape drive, a tape library or even a disc tower, etc. The advantage of this solution is that even if the disk array fails, or even several hard disks on the disk array are broken, the raid group cannot be rebuilt, and the data is still not lost. The disadvantage is that the time required for backup and recovery of data may be longer than the previous solution, and is suitable for various systems that require less availability and do not require providing services to the outside world at all times." Wang Chenyu talked happily.

"Ah, Manager Wang, you are simply an expert in data storage. This easy-to-understand explanation made me fully understand the meticulous but distinctive solutions in data storage and their respective advantages and disadvantages. But I see on your business card, you are a sales department manager, not a technical engineer?" The man named Liu sighed.

"The direction of data storage is still a relatively unpopular branch in the IT industry. Now domestic users are beginning to slowly involve this field, which is closely related to the rapid growth of user data after experiencing large-scale computer network construction. However, since the technology and products in data storage have certain rapid thresholds, our company requires that the sales system understand technology from top to bottom, and always keep up with the current various new technologies and solutions. So it is normal for me to have an in-depth understanding of the technology and solutions of data storage." Wang Chenyu explained again.

"Awesome, it's really a salesman of a manufacturer. I really didn't expect you to be so proficient in technology. I used to deal with us, all of which system integrators were in the past. Their sales staff had no way to answer our problems in data storage and even filed a case for analysis. They just knew to just build relationships, eat, drink and entertain. I think sales like you are the sales that can really help users solve problems. By the way, some companies recommended the American Rose Company's dual-machine hot backup software to us. We have never heard of this brand, nor do we know whether it is easy to use, nor can we find out the effect of using this dual-machine hot backup software. Are you an expert in this field? Do you know this Rose Double Festival hot backup software?"

Wang Chenyu smiled and replied, "You really asked the right person. The national exclusive general agent of Rose dual-machine hot backup software, our Gongli Company, has sold many sets. In addition to the manufacturers selling this software itself through our company, it also makes OEMs for many well-known foreign manufacturers. In other words, many foreign manufacturers also use their dual-machine hot backup software, but they do not use the manufacturer's own brand. I guess the company that recommends this software to you must be purchased from our company and then sold to you exclusively."

This is the first time Wang Chenyu talks about Gongli Company’s products, and this is actually just a software product of Gongli Agency.

But his answer still surprised Mr. Liu and said, "Oh, I accidentally encountered a real upstream manufacturer? Hahaha, I didn't expect it! I didn't expect it at all!"
Chapter completed!