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Machine twist, strong degaussing can be restored! Abandoning "Cloud Garbage" Makes Google Big Head

via:博客园     time:2019/8/12 15:25:43     readed:159


Big Data Abstracts

Authors: Cai Jie, Lin An,Cao Peixin

On July 1 this year, the regulations on the Management of Municipal solid waste (MSW) in Shanghai were officially implemented. It is known as the Shanghai Municipal solid waste Management regulations (MSW).

As soon as the regulations came out, the barrels of these four colors completely changed the lives of the people of Shanghai.


But a new type of garbageCloud garbage


Maybe this kind of garbage household will not produce, and it is far from people's life, but do not underestimate this part of garbage, which is a huge market worth 300 billion dollars!

But recycling this kind of garbage is not easy, because it involves many hard drives with personal data of users, improper handling is very likely to cause.Data Leakage! Many of the big tech companies are worrying about it, and even gave birth to a special recovery.

1. The global scrap metal market is turning its attention to cloud computing equipment recycling

As we all know, we are now in an era of data explosion. The global demand for data storage and cloud computing is increasing, and the number of large data centers is also increasing. Citigroup's research shows that investment in cloud infrastructure has increased dramatically since 2015, with an average annual growth rate of about 16% in the market quota for data center-related equipment for this year and next.


However, these data centers are not only a place for processing massive data sets, but also a place for processing them.Giant dump

Why do you say that? A report on Enterprise Network lists such a set of data. A medium-sized data center generally has about 3000 racks, and a rack can hold 10 servers.

Such a medium-sized data center can put about 30,000 sets of equipment, the building area can reach 2,000 square meters, these equipment operation life is generally five years.Nowadays, the technology of data center develops very fast. Many equipments have been eliminated in less than five years, and the equipments have become waste and electronic waste.

This means that the first batch of equipment has exceeded its useful life and has become a huge amount of e-waste. And the current situation of high-speed iteration of this technology is creating a new market.Cloud Recovery。 It is estimated that the market is about $300 billion.

Sims Metal Management Ltd. (Sims) and Electronic Recycling International Inc. (ERI) are among the beneficiaries.

Some devices in the data center (such as processors, fans, etc.) can be separately dismantled and resold in the electronic market. They also contain metals such as aluminium, copper and steel, which become more valuable as large economies such as China rely more on consumption rather than exports to drive economic growth.

Sims and ERI participated in a small number of cloud computing material recycling pilot projects in the United States, and predicted a significant increase in recycling in the next few years. Increasing trade barriers and weak commodity prices have impacted corporate profits. Cloud recycling may be the new profit growth point for these recyclers.


At Sims's factory in West Chicago, Illinois, workers are testing and refurbishing laptops. Source: The Wall Street Journal

2. It's not just about selling and dismantling.

In 2018, the total annual capital expenditure of Amazon, Microsoft and Google exceeded $60 billion, an increase of 50% over the previous year. All three companies operate very large-scale cloud computing networks and data centers, and are constantly upgrading and expanding.


Amazon, Microsoft and Google are all cautious about disposing of obsolete devices because of concerns about the security of sensitive data.

Some companies require recyclers to tear down servers and record the whole process on the spot, while others hire security personnel to protect them with guns on their way to scrap farms. Coupled with the fact that the industry is

Google likens its data center to a seat that is filled with servers, drives, routers, and other components


In the Sims factory, workers are checking electronic equipment. Source: The Wall Street Journal

Microsoft has also made tremendous efforts to recycle, refurbish and resell cloud infrastructure components, trying to make the whole process more sustainable and safer.

Alistair Field, chief executive of Sims, an Australian listed company, believes that the data center recycling business will emerge in 12 to 18 months and will gradually improve in the next few years.

He estimates that since 2025, about 2 million tons of abandoned equipment have been dismantled and recycled each year. And for what professional third-party recycling companies need to do, Field says:

Even if SSD hard disk is physically destroyed, the data can still be found.

If the enterprise decides to physically destroy the disks, the destruction of SSD hard disks will cause more trouble.

Fredrik Forslund, vice president of the Bancco Enterprise and Cloud Solutions, said:

Although very large cloud computing providers like Microsoft Azure and Google Cloud use shredders to process drives (Google uses robotic automation to destroy them), this is rare in traditional enterprise data centers and quite expensive.


Robots destroy hard drives in Google Data Center, and Vice President of Google Data Center Kawa demonstrates them in Google Cloud Next 2018.

And it also requires a full audit trail, that is to say, the serial number of each drive and the crushing process need to be photographed. In addition, some companies concerned about security try to erase data with a strong magnetic demagnetizer, rather than physically damaging the hard disk drive, but today's hard disk shell will block magnetism, SSD hard disk data will not be affected by the demagnetizer.

Although the employment of third-party services can provide an effective physical disruption by tracking the audit, this increases the cost of protecting the drive during the transfer process.

Deleting secret keys is not foolproof

More and more enterprises are trying to eliminate the hard disk password by simply deleting the key, because this scheme is fast and simple. According to the study, 64% of enterprises adopt this approach, which is even higher in regulated industries such as health care and pharmaceuticals.

However, Forslund warned:

In this way, it is important to verify and verify that the secret key has been deleted, even if the data of the hard drive has been deleted, and the management tool marks it as non-open. But only 70% to 80% of the cases, the old hard drive can be deleted to an auditable level, which means that part of the data can still be recovered through the right tools.

Third, it is not only a huge market, but also a huge challenge.

In 2017, a joint report by the United Nations University, the International Telecommunication Union and the International Solid Waste Association said that only 20% of the world's e-waste was recycled correctly in 2016.

The report points out that although the current cloud computing technology can improve the efficiency of equipment use, such as a device can provide more services than before, the growing demand for cloud computing means that people need more data centers, which also generates more e-waste.

ERI recycling plants in Indiana and Massachusetts are currently using manual cleaning of e-waste. John Shegerian, co-founder and executive chairman of ERI, believes that the number of e-waste will continue to increase. He hopes that robots will be used in e-waste recycling in the future, and ERI is also active. Seek new partners.


Every day, ERI's Holiston plant smashes about 33 tons of cathode ray tube TV, 6 tons of flat panel TV and 7 tons of computers.

But the biggest challenge facing huge profits is whether the data will be leaked. In the past, e-waste recycling is more personal equipment. Since the decision to sell, the individual should be responsible for his own actions. But now a company that stores large amounts of user data has to consider the risk of data leakage if it considers selling these devices.

A slight mistake would violate the new European data law, GDP R, or the California Consumer Privacy Act, CCPA.

In China, laws and regulations such as the Law on the Prevention and Control of Environmental Pollution by Solid Waste and the Law on the Promotion of Cleaner Production have been promulgated. However, more attention has been paid to the problem of environmental pollution by electronic waste, and no data has been involved.

With the increasing frequency of updating the data centers of domestic science and technology giants, the resulting data centers are becoming more and more frequent.

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