Magic on the verge of extreme: fearless 7-ka date of the centers

Magic on the verge of extreme: fearless 7-ka date of the centers  
 
Most recently, a list of applicants for the title of "the most beautiful data center" of the world was published. It was our turn to combine beauty with extreme. That's how ComTec has a list of the 7 most extreme server farms. Whether it's a deep cave at the South Pole or deep waters off the Pacific coast of the United States, the data is safely stored in extreme places around the world.
 
Ice Cube Lab - More than 1200 computing cores and three petabytes of memory, cooling server capacity at an outside temperature of less than -40 - at least extremes. You can not just take and run such a chilling ...
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Pure Storage ActiveCluster in conjunction with VMware: review and testing

Pure Storage ActiveCluster in conjunction with VMware: review and testing  
 
Not so long ago Pure Storage company announced the new ActiveCluster functionality - active /active metro cluster between data stores. This is the technology of synchronous replication, in which a logical volume is stretched between two stores and is available for reading /writing on both. This functionality is available with the new version of the firmware Purity //FA 5 and is absolutely free. Pure Storage also promised that the configuration of the stretched cluster was never so simple and understandable.
 
 
In this article we will tell you about ActiveCluster: what it consists of, how it works and ...
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Overview and testing of Infortrend EonStor DS2024 2nd generation

Overview and testing of Infortrend EonStor DS2024 2nd generation In the article "Infortrend storage is an alternative to A-brands. Review and Testing » we described the functionality and performance of one of the most popular at the time SAN Infortrend - DS 3012T. To the advantages of Infortrend storage, following the results of the last article, we classified the support of classic Enterprise disks (not branded ones) and the operation of SATA disks in 2-controller systems. These facts make the storage system data unique, because using SATA SSD Enterprise, you can build a low-cost storage system with high performance and fault tolerance.
 
 
In this article, we'll look ...
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"Megafon" ordered a storage system "Kupol" for storage of traffic under the law of Yarovoi

"Megafon" ordered a storage system "Kupol" for storage of traffic under the law of Yarovoi  
 
One of the leading manufacturers of equipment for SORM, the company "National Technologies" placed on the public procurement portal the documentation on the data storage system "Dome", which was developed with her participation.
 
 
As it follows from the documentation, until May 3? 2018 the company undertakes to supply the equipment to eight Megafon sites and three Skartel sites (the daughter of Megafon, which operates under the Yota brand). MegaFon sites are located in Moscow, St. Petersburg, Nizhny Novgorod, Samara, Yekaterinburg, Saransk, Pskov and Smolensk, the Yota platform in Moscow, St...
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Updating the range of storage systems Fujitsu ETERNUS

Fujitsu has been working on the disk storage market for 50 years. Today in its product portfolio there are both hybrid and All-Flash arrays. The Fujitsu range of storage systems is regularly updated with interesting new products, in this article we will talk about some of them.
 
 
Updating the range of storage systems Fujitsu ETERNUS  
Storageperformance.org tested the ETERNUS DX200 S4 with 20 SSD on board. In the benchmark simulating the work of high-loaded OLTP databases, the response time of the DX200 was ??? milliseconds at ??? IOPS. Testing with the same portal model All-Flash ETERNUS AF250 S2 with installed 24 SSD, showed a result of ??? milliseconds ...
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Flash begins and wins: the future of SSD

Flash begins and wins: the future of SSDThe future belongs to flash drives (SSDs): they are capable of providing much higher data transfer rates than traditional hard disks (HDD), and at the same time become relatively inexpensive. Widespread introduction of SSD can lead to significant changes in the architecture of data centers and computer systems.
 
 
Servers and storage systems with SSD flash drives allow you to solve the most demanding tasks, such as searching in large databases, online transaction processing, business intelligence, large data processing and large-scale virtualization. SSD have all the chances to significantly push ...
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Comparison of open OLAP-systems Big dаta: ClickHouse, Druid and Pinot

Comparison of open OLAP-systems Big Data: ClickHouse, Druid and Pinot ClickHouse , Druid and Pinot - Three open data stores that allow you to perform analytical queries on large amounts of data with interactive delays. This article is a translation of a detailed comparison of , executed by Roman Leventov.
 
 

Spoiler


 
 
ClickHouse
 
Druid or Pinot
 
 
 
In the organization there are experts on C ++
 
In the organization there are experts on Java
 
 
 
Small cluster
 
Large cluster
 
 
 
A few tables
 
Many tables are
 
 
 
One data set is
 
Several unrelated data sets
 
 
 
Tables and data are in the cluster permanently
 
Tables and data ...[/h]
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We divide S3 baketes into different pools in Ceph Luminous

In the process of setting up a new cluster on Ceph Luminous, the task was to distribute various S3 bakery to different storage devices (in my case, SSD and HDD). There are a lot of instructions on the Internet how to do this in Ceph Jewel, but in the case of Luminous the process has undergone great changes and the old instructions no longer work. However, that in the off-documentation this scenario is not described, the configuration process becomes not too trivial.
 
 
 

Problem


 
Once again, I will describe the task: in each node of the cluster, some HDD and SSD disks are installed. It is ...[/h]
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Prospects for the development of the video surveillance industry: the possibilities of modern video analytics systems

Prospects for the development of the video surveillance industry: the possibilities of modern video analytics systemsAccording to the agency Transparency Market Research, by 2022 the total turnover of the video surveillance market will reach 71 billion US dollars and will increase by at least 16.5% annually. While demand is currently fueled by factors such as the increased danger of terrorist attacks and the continued tightening of legislative requirements for security infrastructure and access control, in the near future the focus will shift to industries such as retail, industry, healthcare and others. The reason for such changes is the rapid development of intelligent video analytics systems that can significantly ...
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