ZFSin: working with ZFS is native to Windows

ZFSin: working with ZFS is native to Windows
 
While doing a search on Habra for the word ZFS, I found almost fifty articles one way or another mentioning a wonderful file system with a name. Separately, for example, you can mention a lot of new materials " ZFS on Linux: keep from the fields 2017 " And " ZFS - the best file system (yet) ". Did this search query, that's why
 
 
For more than 7 years, people have been asking themselves, " ...
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The new record of Tesla Model 3

Hypermiling - is driving the car with the maximum possible efficiency in order to reach the maximum mileage until another charge or refueling. Hypermiling is not the best method to find out the average mileage of a car before charging in case of typical use, but still an interesting way to see how the driving style can affect the energy efficiency of the car.
 
 
Owners Tesla Model 3 - Erik Strait and Sean Mitchel set a new record having passed 606 miles (975 km) on ordinary public roads on one charge.
 
 
The new record of Tesla Model 3 ...
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Monitoring the performance of the disk subsystem using zabbix and block stat

Hardly anyone will argue that monitoring the performance of the disk subsystem is almost the most important task for all highly loaded storage systems and databases. I initially ran into this a long time ago, even when I had to watch PostgreSQL. Recently, I returned to this issue in connection with the need to test various storage facilities.
 
 
Today I want to share my current experience with the community on the real example of zabbix and its connection with the block stat.
 
 
Monitoring the performance of the disk subsystem using zabbix and block stat  
habr.com/post/165855 . I'll tell you - it's terribly inconvenient.
 
 
Where ...
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Marvin Minsky "The Emotion Machine": Chapter 5 "Simulations and Predicting Machines"

How to bring the "human" in technology and how technologies help to understand and improve and scale the "human"?
 
 
In this we will help the harsh Marvin Minsky, who with his ruthless intelligence analyzes feelings, emotions, pain, love and consciousness.
 
 
Marvin Minsky "The Emotion Machine": Chapter 5 "Simulations and Predicting Machines"

 

§5-8. The concept of "simulation"


 
"Reality leaves a lot to the imagination"
 
- John Lenon
All of us can recognize the arch made up of rectangular blocks.
 
 

 
But also we all can imagine an arch, the upper rectangular ...[/h]
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Audio gadget of special purpose: "warm" lamp recorder and spy watch of the early 50's

This is another pilot post for a new cycle. It is known that many innovations do not immediately fall on the mass free market, and their use for decades can be limited solely to special equipment. This cycle will be about such devices, the history of their creation and use.
 
 
Audio gadget of special purpose: "warm" lamp recorder and spy watch of the early 50's  
 
Perhaps, one of the most legendary, for many years predetermining trends in the development of this type of audio equipment, was a special portable wire recorder Protona Minifon MI-51 of 1951 year. This device was considered the smallest of the series produced in the world from 1951 to 1955. A characteristic feature was the use ...
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Using std :: optional in C ++ 17

Using std :: optional in C ++ 17
 
Let's take a couple of the two types - What can you do with a composition of this kind?
 

In this article I will tell you about std :: optional - A new helper type added to C ++ 17. This is a wrapper for your type and the flag indicates whether your value is initialized or not. Let's see where this can be useful.


 

Introduction


 

By adding logical flags to other types, you can achieve what is called "Nullable types". As mentioned earlier, the flag is used to indicate whether a value is available or not. Such a wrapper expressively represents an object that can be empty (not through ...

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Cloud or local server: What to choose to deploy Zimbra?

The way from start-up to large enterprise together with Zimbra. We choose the best option for implementing Zimbra Collaboration Suite.
 
 
Cloud or local server: What to choose to deploy Zimbra?
 
 
 
 
The answer to the question of choosing between a local and cloud server is obvious.
 
Of course, it's always better to have both a local and a cloud server to
 
to ensure maximum continuity of business processes at the enterprise
 
and permanent reservation of important data. However, far from
 
always allocated to the IT budget allows you to pull both options. It is
 
so the manager responsible for the IT infrastructure in the enterprise,
 
you have to choose ...
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Refactoring using C ++ 17 std :: optional

Refactoring using C ++ 17 std :: optional
 
In development, there are many situations when you need to express something using " optional " - an object that may contain some value, or may not contain it. You can implement the optional type with several options, but with C ++ 17 you can implement it using the most convenient option: std :: optional.
 

Today I have prepared for you one refactoring task, to which you can learn how to apply the new C ++ feature 17.


 

Introduction


 

Let's quickly immerse ourselves in the code.


 

Imagine that there is a function that takes the object ObjSelection , which is...

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Security Week 19: the great and terrible GDPR

Security Week 19: the great and terrible GDPR Imagine for a moment the ideal world in which all your data is stored in the cloud system, in an encrypted form, and only you have access to this repository. "Account" is used to synchronize data on a home PC, smartphone and tablet. To access the files, messenger messages and mail correspondence, the additional consent of the owner is required. Even more restrictive is the access to your data by third parties and companies. One large red button can disable access to all third-party services. Social networks now have to ask for your permission to use data to target advertisements every time. Legislatively fixed ...
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Detection and counting of visitors in real time on the single-board computer "Up-board"

Detection and counting of visitors in real time on the single-board computer "Up-board"In the C ++ direction, we developed an application for counting the number of visitors based on the analysis of the video stream from the video camera. Its distinctive feature was that the application was designed as a separate stand-alone module for launch on the Up Board. This allows customers to buy the necessary number of devices and install themselves in the required locations. Also, a separate application server was developed, which allowed you to configure these devices remotely, get statistics from them, video stream and present data about visitors in a convenient form. ...
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