High Availability Server Definition

Today, more and more enterprises recognize the importance of high availability (HA) for their WEB servers, after all, customers need reliable services. At the same time, more and more organizations are beginning to transition from IPV4 standard to http://www.aliyun.com/zixun/aggregation/9485.html ">ipv6 standard. The new requirements for supporting high-availability WEB services in IPV6 environments arise. Web in IPV6 environment ...

Memcached+magent+keepalived high Availability cluster two. We have already configured the memcached+magent below if the magent is down, it is not possible to continue to provide services, so we used keepalived to add a standby magent proxy server. When a magent is down, it is replaced by another. Configuration steps: Two magent proxy Server, a set of one to do from, when the main downtime from the successor to continue to work. Two Magen ...

What is a cluster? There are two common cluster architectures, one is web/internet cluster system, which is to place data on different hosts, that is, multiple hosts are responsible for one service at the same time, and the other is the so-called parallel operation! Parallel operation is actually the work of the same operation, to the entire Cluster inside the CPU to perform a synchronous operation of a function. Due to the computational power of using multiple CPUs ...

You've heard it, but it's worth repeating that the network is a bottleneck in a private cloud. Now that servers and storage technologies have developed into shared resources, cloud administrators are free to invoke these resources, but the network is still manual. To improve flexibility, private cloud networks must be virtualized, and software definition networks (SDN) are a cost-effective approach. "Businesses need to respond quickly, like service providers, to internal customers. To do this, enterprises need to enable self-service it, and the biggest obstacle to this is the network, "is developing based on SDN network virtualization ...

What is Cluster? There are two common Cluster (clusters) architectures, one is Web/internet Cluster system, which is to place data on different hosts, that is, multiple hosts are simultaneously responsible for one service, and the other is the so-called parallel operation! Parallel operation is actually the work of the same operation, to the entire Cluster inside the CPU to perform a synchronous operation of a function ...

There are two common Cluster (clusters) architectures, one is Web/internet Cluster system, which is to place data on different hosts, that is, multiple hosts are simultaneously responsible for one service, and the other is the so-called parallel operation! Parallel operation is actually the work of the same operation, to the entire Cluster inside the CPU to perform a synchronous operation of a function. Due to the use of multiple CPUs ...

Windows http://www.aliyun.com/zixun/aggregation/13357.html ">azure computing platforms, which include WEB role, Worker role, and virtual machines, are based on computer virtualization. Deep access to the underlying operating system makes Windows Azure's platform, a service (PaaS), uniquely compatible with many existing software components, runtimes, and languages, and of course, without this in-depth access (...).

Editor's note: Data Center 2013: Hardware refactoring and Software definition report has a big impact. We have been paying close attention to the launch of the Data Center 2014 technical Report. In a communication with the author of the report, Zhang Guangbin, a senior expert in the data center, who is currently in business, he says it will take some time to launch. Fortunately, today's big number nets, Zhangguangbin just issued a good fifth chapter, mainly introduces Facebook's data center practice, the establishment of Open Computing Project (OCP) and its main work results. Special share. The following is the text: confidentiality is the data ...

The storage system is the core infrastructure of the IT environment in the data center, and it is the final carrier of data access. Storage in cloud computing, virtualization, large data and other related technologies have undergone a huge change, block storage, file storage, object storage support for a variety of data types of reading; Centralized storage is no longer the mainstream storage architecture of data center, storage access of massive data, need extensibility, 　　Highly scalable distributed storage architecture. In the new IT development process, data center construction has entered the era of cloud computing, enterprise IT storage environment can not be simple ...

Plum Steel: Cloud computing has limited impact in 3-5 years, and virtualization is a priority. Baosteel Group Shanghai Meishan Iron and Steel Co., Ltd., director of Information Office, said: cloud computing on domestic manufacturing enterprises in the impact of information technology within 3-5 years is limited, from the application of the value and feasibility, virtualization technology is the most urgent task. Cloud computing in domestic manufacturing technology to achieve some limitations. One is technology constraints: in the early days of cloud computing, the IT industry was more focused on public cloud services, trying to fully leverage new applications and architectures to meet business needs. Although it ...