Cai Xinghai, the Infrastructure Department responsible for the bidding, also had a very good relationship, which can be seen from the fact that Tianxiang Company basically won the bid for most of the relevant computer system projects of Agricultural University.

It’s not all that. It is rumored that Cai Xinghai has a good relationship with the senior executives of Agricultural University, but he has a good relationship with those principals, which is what Teacher Chen doesn’t know.

In other words, Cai Xinghai showed a good relationship with the information center in front of people, and was just a corner of the huge iceberg that surfaced, and was truly a giant under the water.

Therefore, Teacher Chen came up with a solution to let the general agent of Puhui contact Cai Xinghai and let both parties cooperate to make this bid.

But what went against my wishes was that Cai Xinghai did not nod and cooperated, but his attitude was always vague. It was not until recently that Teacher Chen heard that Cai Xinghai would bring people from a domestic storage manufacturer to conduct technical exchanges today, which means that Cai Xinghai is really willing to cooperate with this storage device manufacturer.

It is precisely because of this that Teacher Chen decided to give Wang Chenyu some technical problems in this so-called technical exchange activity, because Wang Chenyu's identity is a salesperson of a manufacturer rather than a technical engineer.

If Wang Chenyu was asked in public and was speechless or made some mistakes, even if Chu Guangyi and Yang Xia had a good relationship with Cai Xinghai, it would not be easy to fully support the domestic storage manufacturer brought by Cai Xinghai on the desktop.

They will inevitably ask Cai Xinghai to replace a storage device partner in private, so that Puhui's general agent will have the opportunity to cooperate with Cai Xinghai's Tianxiang Company and participate in this project.

This was made in advance by Teacher Chen, so from the beginning he set up a situation where he thought he could not take into account both technology and economy, but Wang Chenyu, a young man, seemed to have stepped into the situation that was set up suddenly, and he started to talk big about the solution.

Teacher Chen was just waiting for this moment, so he immediately began to question Wang Chenyu without hesitation.

Wang Chenyu did not answer Teacher Chen’s question positively, but instead asked Teacher Chen, “Teacher Chen knows a lot about storage technology and data storage devices. I would like to ask Teacher Chen if he knows what factors determine the data processing speed of a disk array?”

Facing Wang Chenyu's failure to answer directly, he suddenly raised a very simple question. Teacher Chen replied confidently, "Isn't it the interface connection between the disk array and the server? At present, only the disk array with the fiber host interface connected to the fiber card on the server through the storage fiber switch is the fastest."

"Yes!" Wang Chenyu first affirmed Teacher Chen's statement, and at the same time changed the subject and continued to say, "But this answer is not enough for storage device manufacturers or disk array manufacturers. In addition to the fiber host interface, there are actually several other factors inside the disk array that will also affect the speed of the disk array processing data access requests. I don't know that Teacher Chen doesn't understand the structure inside the disk array. The current internal architecture of the disk array is somewhat like a PC machine, with a central controller, similar to the CPU of the PC machine. However, magnetic

The controller chip of the disk array and the CPU of the PC machine are different chips. Generally speaking, many brands of disk arrays on the market use central controller chips to handle riad operations and external read and write requests. However, in order to increase the processing rate of external read and write access requests, some manufacturers will only ask the controller chip to be responsible for this part of the work, and will add a chip to the motherboard to specifically handle raid operations. This will increase the speed of some of the processing of external read and write access requests. For example, this is the disk array that we are interested in."

Wang Chenyu's statement is completely separated from Teacher Chen's knowledge structure. He only knows some technical parameters about Puhui's high-end disk arrays. What role these parameters play is still told by the sales of Puhui's general agent. He is completely unaware of the internal architecture of the disk array.

So Teacher Chen was unable to argue at all. He could not even be sure whether what Wang Chenyu said was true. According to his guess, the people from the General Agent of Puhui may not be as clear as him. This knowledge category may only be understood by technical engineers who are specialized in data storage equipment.

After a look at Teacher Chen who did not continue to say anything, Wang Chenyu continued to popularize the science, "Inside the disk array, in addition to the controller chip, there is another factor that will also affect the reading and writing speed of data, that is, the interface between each hard disk on the disk array and the motherboard on the disk array. Maybe everyone will only care about the capacity of each hard disk, but the disk array is divided into hard disk type, that is, the hard disk on the disk array can be inserted into fiber optic hard disk SSCSI hard disk and ide or called pata hard disk. Of course, this is

Before purchasing, you need to choose according to the user's needs. These types of hard disks cannot be mixed. Ide or pata hard disks are ordinary hard disks that we usually use on PC computers. The mechanical heads in the hard disk have the lowest speed and the slowest reading and writing speed. The higher speed is the SSCSI hard disk, and the highest is the optical fiber hard disk. In fact, the disk array can be understood as a large PC computer. The speed of this PC is not only affected by the type of host interface, but also by chips and hard disk types."

Wang Chenyu's professional science shocked everyone present, and everyone's heart felt that Wang Chenyu was a very professional and not like a salesperson or a technical engineer. Even Teacher Chen had to admit Wang Chenyu's professionalism.

But he still didn't give up because Wang Chenyu said so professionally, but in his opinion, the problems he raised did not solve.

Therefore, he immediately fought back and said, "Manager Wang is indeed quite professional, worthy of being a professional data storage manufacturer. But these still do not solve the actual difficulties I just raised."

Wang Chenyu smiled slightly and replied, "It's actually very simple. If you want to consider the performance completely, you must use a disk array with both the host interface and the disk interface that are both optical fibers. But since Teacher Chen proposed to consider economics, can we make some adjustments? Make a little concession in performance to meet economic needs."

Yang Xia, deputy director of the Information Center who had not made any noise at this time, interrupted, "Then please let Manager Wang tell me, how should I balance the performance and economic requirements? My always-on view is that we must consider various factors and select the most cost-effective equipment."

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Chapter completed!