Rebirth 2010: I taught Mr. Lei how to make a mobile phone

Chapter 852 Race against time

"A physical method?" Liu Qing wasn't from a technical background, so he didn't understand what he was hearing, and his brows furrowed involuntarily.

Seeing this, Zhang Bo turned around and pulled over a whiteboard. He began to explain, using gestures and words, to help this non-technical person understand the complexity. He started by explaining the most basic concepts:
"The most common storage unit for ordinary people is probably GB, while enterprise-level data is often measured in TB."

For a company of our size, the amount of new data generated every day can reach several terabytes.

Even after filtering out junk information and keeping only valid content, and after layers of optimization, the data we need to transmit this time is still as high as 1PB.

The specific conversion formula is 1PB = 1024TB = 1024 × 1024GB.

He paused, then emphasized, "What is the concept of 1PB?"
If we use the existing mainstream mechanical hard disk drives (HDDs) for storage, we would need about 150 top-of-the-line 8TB enterprise-grade hard drives, with a total weight of up to 100 kilograms. It would take several strong men to move them, and the hardware cost alone would be around 400 million.
Using all-flash storage (SSD) with faster transfer speeds could halve the weight, but the cost would be tens of millions.

These words left Liu Qing speechless. She had never imagined that those seemingly intangible data could carry such weight, almost as much as gold.

"Sister Qing, you can think of it as a huge cake."

We first cut the large cake into small, easy-to-package pieces, then ship them overseas by air. Once there, we reassemble them to restore the original cake.

The cake represents all the data we need. The smaller pieces of cake are like dividing the data into chunks and packaging them into hard drives; once they reach their destination, we can simply reverse the process.

Zhang Bo tried to explain using simple metaphors.

Liu Qing nodded, the clear and concise explanation making everything clear to her: "How long does this method take?"

"It mainly depends on the air freight speed; if it's fast, it can arrive in 3 days."

What percentage of this data is map-related?

"40%."

"What if the message only covers the five cities of Beijing, Shanghai, Hangzhou, Guiyang, and Shenzhen?"

Zhang Bo pondered for a moment: "It's probably less than 10TB. If we export it using multiple threads at the same time, it can be done in one day. If we don't want to attract attention, it's best to distribute it randomly over three days."

"Then let's go online for the core data, especially the data from Beijing, which will be the highest priority. Let's go offline for the other data, with both online and offline data running in parallel!" Liu Qing made a decisive decision.

Zhang Bo thought for a moment, then nodded and replied, "Sure, no problem."

"Thank you for your hard work. By the way, Zhang Bo, did President Cheng mention the family trip to you?" Liu Qing changed the subject, her tone softening.

"I already said I've bought the plane tickets from home, and I'm flying to Singapore tomorrow."

"Yes, all travel expenses for family members are covered by the company."

"Thank you, Sister Qing!"

“It’s not just you. All of us senior executives have worked diligently for the company and made such great contributions. This is what the company should do.” Liu Qing smiled gently, but there was no warmth in her eyes.

"Then I'll go do my work."

"Go ahead, I trust you to handle things. You've been working yourself to the bone these past few days, so you can go home and rest early today. Let the others do the work."

"Ok."

After leaving Liu Qing's office, Zhang Bo checked on the data team's progress. Everything was going according to plan. He offered a few words of encouragement and then went home to handle his family's travel arrangements.

She then sent several messages containing the keywords and subsequently deleted the chat history on WeChat, as if nothing had happened.

Over the next three days, Didi's data department at its Shanghai headquarters worked intensively on the data.

Meanwhile, similar work was taking place in a heavily guarded classroom at the Qing Teng Academy in the capital.

"We've got their encapsulation algorithm. Next, we'll encapsulate the simulation data prepared by the ride-hailing company using Didi's method. Everyone, get to work!" Xu Chaojun gave the order, and everyone started moving, with the sound of keyboards clicking instantly filling the air.

Commands and codes flashed across the screen, eventually transforming into instructions for disassembling, cutting, packaging, and compressing, processing massive amounts of raw data into compressed packages conforming to specific formats.

At that moment, Xu Chaojun's phone received a message containing several pictures and model numbers of hard drives and shelves, along with the message: "Report progress!"

He replied, "80%!"

The other party replied instantly: "You have one last day!"

"no problem!"

Xu Chaojun put down his phone and began to allocate similar assembly and transportation materials.

He understood that both sides were racing against time.
July 18, night.

In the conference room on the top floor of Didi's Shanghai headquarters, executives held their breath and surrounded Zhang Bo, watching his actions intently.

This is the critical moment for transmitting core data; success or failure hinges on this.

Liu Qing looked at Zhang Bo: "Are you ready?"

After entering the IP address and relevant information of the overseas server, Zhang Bo swallowed hard, perhaps out of nervousness: "Ready?"

"Then let's begin!" Liu Qing ordered.

Zhang Bo typed out a command and finally gritted his teeth and pressed Enter.

Data began to be transmitted on the monitoring panel projected into the conference room.
Time ticked by, and the progress bar on the screen began to crawl like ants; everything seemed normal.

Liu Qing nodded upon seeing this, walked out of the conference room, and returned a few minutes later carrying a bottle of champagne and several wine glasses.

The crisp clinking of bottles, wine, and glasses was particularly clear in the silence.

"To our impending victory, cheers~~~"

"Cheers~~"

Let's raise a glass to Zhang Bo, the hero of this event!

Zhang Bo raised his glass in a toast, but as he drank, he caught a glimpse of the data still being transmitted normally out of the corner of his eye. He silently prayed: "Friendly forces, you must stop it!"
Meanwhile, deep within the Qing Teng Academy, in a classroom heavily guarded by soldiers.

"Report, the monitoring system has triggered an alarm; Didi has started transmitting data."

Xu Chaojun yawned: "Were they shipped together in a package?"

"Yes, it won't reach the other end until all data transmission is complete; it's not executed in segments." "Then let's give them 10 minutes of fun time."

"Yes!"

Happy times are always short; 10 minutes can pass in the blink of an eye.

"Alright, cut it off." Xu Chaojun said calmly.

"Intervention successful!"

Just as Liu Qing and others were passionately discussing the subsequent listing process, a sudden "bang" sounded in the conference room, and the piercing alarm broke the pleasant atmosphere.

Zhang Bo quickly returned to his seat and began typing on the keyboard with a serious expression.

Liu Qing put down her wine glass and strode over: "What's wrong?"

"An error has occurred. The transmission failed!"

"How could there be an error? Didn't you conduct a simulation exercise beforehand?" Liu Qing's voice suddenly rose.

“The simulation transmission room is fine.” Zhang Bo said impatiently, “Stop arguing, let me check first.”

"Okay, okay. You investigate, you investigate~~~" Liu Qing gestured for everyone to be quiet.

"Clang!" "Clang!" "Clang!" "Clang!"
That night, the pop-up alarm sounded like a curse, haunting everyone's ears.

At first, Zhang Bo was secretly pleased, but thankfully the other party was reliable.

However, during the investigation, he discovered that the other party's methods were quite sophisticated, and even he could not see through them.

Two hours later, he called several architects from the company and dragged them out of bed to the office to investigate, but they still had no clue.

As dawn broke, Liu Qing, who had stayed up all night, had bloodshot eyes and had already finished the champagne on the table. She demanded, "When can this be resolved? I need a precise time!"

“We suspect it has nothing to do with the company’s systems and network,” Zhang Bo said, rubbing his throbbing temples.

"sure?"

"Who can guarantee anything about this? We can only try to eliminate possibilities by exhaustive search."

We ran another simulation a few hours ago, and it went smoothly.
There are no problems with data transmission between domestic branch offices;
It can even transmit other data, but the data I'm trying to transmit this time, even when the size is reduced to 100MB, still causes an error.

My only suspicion now is that the problem lies with the domestic/international data links, and that sensitive data is being blocked by the firewall.

"Are you even technically capable?" Liu Qing's patience had completely run out.

Zhang Bo, who has a technical background, couldn't stand such words and immediately retorted: "If you're so good, then you do it!"

"If I were capable, would I need you guys?"

Zhang Bo's hair was now a mess from scratching, and he glared at Liu Qing: "If you're not going to do it, then shut up!"

Liu Qing turned pale with anger and turned away.

A few hours later, Liu Qing reappeared, followed by several people: "Zhang Bo, please step aside. Behind me is Lenovo's technical expert team. Let them give it a try."

Zhang Bo chuckled, stood up, stretched, and gestured for them to proceed: "We suspect that the online overseas transmission links may have been inexplicably blocked. You guys take your time investigating; we're going to eat first!"

After he finished speaking, he gave a signal, and several Didi architects followed him out of the conference room.

That afternoon, the leading Lenovo expert shook his head: "It's not a problem with your company. After investigation, it is indeed as Mr. Zhang said, that it may have been intercepted. But the strength and power of this interception are not something that other companies can do. It's more like..." He pointed upwards.

"Okay, thank you for your help." Liu Qingqiang suppressed his irritation.

By the time the experts left, night had fallen, and the day had been wasted on investigation.

It is now July 19th. According to the original plan, even if the verification and review process goes smoothly, it will still take at least 5 days.

Liu Qing was extremely anxious, but she forced herself to remain calm. She knew very well that rushing would be pointless.

Seeing Zhang Bo, who had been up all night and all day in the conference room, Liu Qing asked with a hint of apology, "Mr. Zhang, what do you think we should do now?"

Zhang Bo yawned, too lazy to say anything more, and held up one finger to her.

Liu Qing recalled the previous science popularization and suddenly realized: "You mean to go completely offline? It seems that's really the only way."

"Mr. Zhang, please ask the technical team to work a little harder and make sure the data is loaded onto the disk before the end of tomorrow's workday."

I'll get someone to move things tomorrow, and tell the tech guys downstairs that their wages will double this month!

"Okay, Sister Qing." Zhang Bo went out to announce the news, and a cheer came from outside.

Liu Qing returned to her office and took out her phone: "Dad, that's roughly the situation. They need your help at the airport! I understand."

Around 10 p.m., Chen Mo received a message with only three words: "Tomorrow night, airport, air freight!"

Chen Mo admitted that he didn't have the power to intervene temporarily at Shanghai's airports, but others did.

He pulled up the list of members in the Black Rain group and looked at "Red Heart A". This was the first time he had contacted the person since he invited them to join two years ago.

The phone rang three times before being answered, and a deep voice said, "Hello."

Chen Mo briefly explained the background and potential dangers of the matter over the phone.

There was a long silence on the other end of the phone, so long that Chen Mo thought the other person had hung up.

"This is a serious matter; I need evidence!"

"No problem, I'll send someone with your men to pick it up tomorrow!"

"it is good!"

After hanging up the phone, Chen Mo gazed at the night outside the window with a determined look in his eyes.

This silent war has reached its most critical moment.

(End of this chapter)