Archive for January, 2019

postheadericon Finer Problems with the Cloud Back Up

Very often we hear phrases like “why do I need backup, I have all securities!”. Or “I make backups on the second HDD in the server!”.Or something similar. Very often a few months after that we hear the question “how can I recover the dead data?”. And it is sad.

In the article, we want to speculate a little bit about what “backup” is and what scheme of such a copy will help protect against the loss of my data. Well, try to expose some myths and bad habits.

Most, we think, will not find anything new for themselves, but if you still belong to the category of those who do not or do backups, but these are not backups welcome!


Let’s define the terminology. What is a backup?

It is logical to assume that this is a copy of the data previously saved for the purpose of recovery in case of the destruction of the original.

This implies the first requirement – Isolation

It makes no sense to make a copy of the documents in the apartment and store it in the same place as the original. So it makes no sense to make a copy of the data and store it on the same disk / in the same server as the original.

Is it logical Full

We go further. If we make a copy of the data, then we are afraid of losing it. So?So. This means that all the reserved data is valuable to us. So?Again so. Hence the second requirement – integrity . It makes no sense to copy without checking the integrity – at the output, we may well get the broken data or lose part irretrievably. With the Best Cloud Solutions Company In Singapore this is the perfect option.

Another item

Imagine that you deleted a file or not a file, but many files. For example, one accidentally made “rm -rf ./ test” and went to sleep, with a clear conscience. And at midnight a backup occurred. But here’s the bad luck – he was set up so that he created a complete copy of the data without taking into account versions and changes. Those deleted the file you deleted and on the backup media too – did the opposite thing to its purpose. Submitted? The third requirement is versioning. You should be able to return the previous state of your data, and not just have two identical copies.

And what is the result?

As a result, we received three requirements that the backup system must meet in order to carry this proud name and securely store your data. Isolation will protect against equipment failure or external factors (fire, flood, etc.), as well as malicious deletion of data (will not allow an attacker or a virus to infect / delete and backup too), integrity monitoring ensures that all your data is reserved and you if you lose the main instance, if you find out about the problems too late, versioning will not allow the backup system to move the bullet from the user’s leg, who has shot himself to his knee – to his head.

postheadericon Get Set and Go on the Best Journey Underwater

Who has not dreamed of being able to explore the wonderful underwater world of our Earth? Thanks to the modern submarine tourist excursions (sometimes called “pocket submarines”), it is possible to do so without being a seasoned diver: comfortably installed, dry and safe, submerged up to 35 meters under the water, you will be able to watch the astonishing marine life parade in front of the portholes of your submarine (on the condition of not being claustrophobic!)

A boon for those who can not swim or the idea of ​​snorkeling scares. Whether in the depths of the Indian Ocean, the Pacific Ocean, the Atlantic Ocean, the Caribbean Sea or the Red Sea, aboard a submarine of 3 or 40 passengers, the experience can be magical , and deserves to be tempted (despite sometimes a high price).

Here are 9 spots where you can admire multicolored corals, myriads of fish and other underwater inhabitants, wrecks of boats or planes. Take place! With cupom de desconto Submarino Viagens the details are perfect.

Curasub Aquarius, Curacao, underwater

Located off Venezuela, the island is renowned for its stunning beaches and dazzling seabed. The Curasub Aquarius (managed by the Substation Curaçao, the company to have marketed the first submarine dedicated to tourism) is a small submarine that can accommodate up to 5 passengers, but going to hundreds of meters deep (d where the price is very high compared to other places: $ 650!).

Cozumel (Mexico)

Atlantis, submarine, Cozumel

A few kilometers from the Mexican shore, it is possible to leave for an expedition aboard the submarine Atlantis , a submarine of the US Coast Guard. Cozumel Island is one of the best diving destinations in the world: it boasts a protected marine marine park with amazing coral formations and a wide variety of marine life.

Cayman Islands, turquoise water

At the heart of the calm and turquoise waters of the western Caribbean, the islands are another realm of diving. The Atlantis XI submarine has been specially designed for underwater sightseeing excursions and will allow you to witness to the abundance of underwater life and the spectacular beauty of coral reefs in this corner of the globe.

Submarine, Hawaii

Whether on the island of Maui, Oahu or on the “Big Island”, it is possible here also to experience the submarine journey in the heart of the Pacific Ocean, where acres of coral reef are to explore.


Submarine, Mauritius

This underwater trip will offer you a panoramic view of the Mauritian marine world, 35 meters deep in the heart of the Indian Ocean.