host brain pain

Chapter 83 I Believe In You
Su Xiaomu is very thankful that his knowledge accumulation is barely rich.

It is even more fortunate that the system has carried out full simulation demonstrations in different scenarios in the given storage-related knowledge materials.

Only then did he face this Solaris-based storage operating system that was about to disappear from the stage of history without trembling.

You should know that the last version of the Solaris system was updated in 2015, which was one of the few updates in the five years after SUN was acquired.

In September, not long ago, Oracle, which acquired SUN, quietly dismissed all the engineers it took over from SUN. Solaris existed in name only, and was in trouble.

Su Xiaomu didn't act rashly. He made a comprehensive assessment of the storage system status according to the storage management operation manual.

Including but not limited to understanding the hardware resources, disk array resources, business traffic, and usage of this set of storage.

The disk array is marked with a space of 200T, because all hard disk manufacturers try to save time and money when producing hard disks, and do not convert them in units of 1024, so the actual size is only a little more than 181T.

The hardware resources of the storage head are not very good. It uses an Intel Xeon E5 processor, equipped with dual controllers and a total of 64GB of memory. ①
Rather, this set of storage is originally used to store historical backup data, and the performance requirements are not high, so this configuration is sufficient.

Looking at it, Su Xiaomu's heart moved, and he had some extra thoughts.

Wan's Small Finance's attitude towards this set of storage is very simple, to ensure that the data in it is completely moved out.

After that, it was basically smashed and listened to, because the data was stored, and it would not be a second-hander.

After all, it is the information age, and the importance of data far exceeds the imagination of ordinary people. Countless companies have broken their hearts for data.

According to incomplete statistics, the global storage market is about [-] billion U.S. dollars per year.

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Su Xiaomu's slender fingers occasionally tapped the keyboard a few times, and occasionally supported his chin, staring at the screen in a daze.

Over there, Su Ho and Wan Dai chatted in a low voice.

"What are you going to do with this set of storage? You'll get a lot of money, right?"

Soho talked about the handling of this set of storage.

"I'm really stupid. I was greedy for cheap when I called for the tender. This set of storage hardware, software, and three-year gold medal after-sales service totaled more than 3 yuan.

At that time, the performance requirements were not high, and just for a while, the wind direction was mainly promoting localization, so I made a decision to buy it. To be honest, it was considered to be of high quality and low price.

I didn't even think about using it to store important data, so there were basically no failures, which is good, and now I went bankrupt without saying a word. "

When talking about this matter, Wan Dai couldn't help but shed tears of regret in her heart.

It's all her fault for saving money and trying to get cheap, which caused the current situation.

"I have bought new storage from EMC. Now that this set is finished, I can at most disassemble the frame and sell it as scrap metal."

Wanda said helplessly.

"Foreign products are expensive. The performance of storage with the same space is not much different, but the price is more than three times more expensive! Alas, it will be nice when domestic products can be carried and not expensive."

Su Ho smiled, "Are you trying to say that a certain domestic product is more expensive if you don't carry it?"②
"I don't understand these things either. I just heard a couple of rumors in the financial circle. This is the most capitalized company in China. It has a lot of infamy in the financial industry. If you can't handle it, it will be too expensive." Wan Dai sighed. tone.

It’s not that we are angry at each other, and they are not in the same industry, so there will be no intersection between them.

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During the whole morning, Su Xiaomu basically didn't directly operate on the storage.

On the contrary, he often writes and draws, both Su He and Wanda can see Su Xiaomu's heart.

Having seen Su Xiaomu's calmness and calmness in establishing data warehouses and data mining analysis algorithms, this level of care is extremely valuable.

Su Ho felt relieved.

Speaking of which, what she admired most about Su Xiaomu was: Sao is Sao, but she doesn't have much knowledge.

Yes, I just don’t have much knowledge. Even in my professional field, I am very low-key, modest, cautious, and don’t do random things.

Even when Yang Yu, who is well-known in the data analysis industry, was holding the money last time, he didn't see his tail turned upside down.

If it were other college students of this age, it would be better to publicize their deeds to the whole world. Waves of media interviews are indispensable.

This is probably Su Xiaomu's most essential quality besides coquettishness, being low-key and pragmatic, and not dancing.

Su Xiaomu, who came out of the valley, has no worries about food and clothing since he was a child, and has never been particularly poor. His family in the countryside can barely match the word "well-off".

From a small mountain village to a small county town to a big city, he always remembered a sentence from his mother, Cheng Qianwei, that one should not forget one's roots.

So, in fact, this is the reason why Su Ho always prepares everything for Su Xiaomu...

Well, that's it, Suho emphasized in his heart.

After lunch, Su Xiaomu spoke calmly.

"Mr. Wan, I have a basic understanding of some modules of this set of storage. Because it is based on SAN, that is, based on data 'blocks', data migration will be more troublesome."

He said and raised a finger.

"The first method is to perform data migration on your business server, that is, manually copy and paste operations bit by bit, because there is no cooperation from the manufacturer, this is the only way.

In this regard, I can help write a small program to replace manual operations. It will optimize the algorithm for storage. The workload is not large, it is just a matter of time. This kind of operation has the lowest risk, and I prefer it. "

While talking, Su Xiaomu looked at Wanda.

Wan Dai smiled, "Xiaomu, don't play tricks on us and talk about the second kind."

Su Xiaomu raised his second finger.

"The second method is more risky. Write a program directly on the storage to migrate the data blocks on the storage. You don't need to go through the server, just open the corresponding interface on the emc side. After the completion, the server directly reads and writes data to the emc.

The advantage is that it is fast, the workload is small, and it saves trouble. The disadvantage is that the risk is particularly high. "

Wanda thought for a while and asked, "If the operation fails, can the integrity of the previous data be guaranteed?"

"The worst and worst result is that the storage single control operating system crashes, and the data is intact, but it will take a little time to re-migrate." Su Xiaomu replied simply.

This involves a common definition of storage:
The data of the storage operating system itself and the data of the disk array are completely separated. If the system is broken, it will break and the data in the array will not be affected.

Of course, after the storage operating system crashes, it is impossible to read the data in the array. Even if you directly pull out the hard disk to read, the data in it is garbled.

Wan Dai waved her hand and smiled generously, "Just the second one, I believe you."

①: Dual control: There are two sets of hosts in one chassis, and the host is approximately equal to the motherboard + processor + memory, etc.

②: I may expand on this in the future, perhaps not to mention it for the sake of sensitivity. Pujie has been engaged in related industries for more than 4 years, and has come into contact with a lot of inside information. It is really...

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Broken bowl.

(End of this chapter)