What Is Logical Backup In Oracle

Data Warehouse Environment, ORACLE rac,100t data, daily archive that amount of 5T (for data that does not need to be backed up, has been adopted in a nologging way to reduce the number of files), how to develop backup and recovery scenarios? Programme I: DataGuard DataGuard is the most cost-effective backup and disaster-recovery solution, but when the archive exceeds a certain scale, DG Restore becomes the bottleneck, the daily production of the archive can not be restored in time, we have tried many tuning methods, including parallel recovery, can not be resolved, recovery ...

Content Summary: The data disaster tolerance problem is the government, the enterprise and so on in the informationization construction process to be confronted with the important theory and the practical significance research topic. In order to realize the disaster tolerance, it is necessary to design and research the disaster-tolerant related technology, the requirement analysis of business system, the overall scheme design and system realization of disaster tolerance. 　　Based on the current situation of Xinjiang National Tax Service and the target of future disaster tolerance construction, this paper expounds the concept and technical essentials of disaster tolerance, focuses on the analysis of the business data processing of Xinjiang national tax, puts forward the concrete disaster-tolerant solution, and gives the test example. Key words: ...

What do you want in a storage solution? 　　Do you want to get high performance, reliability, special workload optimization, scalability, low energy consumption or lower start price? Your favorite storage vendor will give you a solution for each of your needs. From centralized management to automation to innovative technology, storage is no longer the age-old topic of yawning. Storage is already one of the hottest data center topics. Virtualization, Private cloud, and disk-based backup have kept the storage world in contention, and the topic of storage has been the focus of attention. Storage space than "Dilith ...

In recent years, cloud computing has become a hot topic in the IT world, with the idea of providing IT resources as a service, with goals consistent with IT development: lower costs, faster deliveries, and more diverse services. Cloud computing is not a specific technology, but a service concept that enables the ease and automation of IT services through an on-demand elasticity of expansion and user self-service. The various categories of cloud cloud can not be separated from the underlying infrastructure construction, cloud computing technology: currently mainly server virtualization (Vmware,hyperv,xen, etc.).

Simply put, a cluster (cluster) is a group of computers that provide users with a set of network resources as a whole. These individual computer systems are the nodes (node) of the cluster. An ideal cluster is that the user never realizes the nodes at the bottom of the cluster system, in their view, the cluster is a system, not multiple computer systems.     And the administrators of the cluster system can add and revise the nodes of the cluster system at will. Below on the server commonly used three cluster software to do a comparative analysis of the introduction: 1 ...

After more than eight years of practice, from Taobao's collection business to today to support all of Alipay's core business, and in the annual "Double Eleven Singles Day" continue to create a world record for the transaction database peak processing capacity.

Cloud, is bound to be the future trend. 　　Domestic cloud market warlords and up, the major multinational manufacturers for the market has launched a unique cloud solutions, and in which, domestic manufacturers also catch up, hoping to use their own advantages and the Giants on an equal footing. Chuzhi: Leveraging cloud storage to control cloud times Chuzhi technology company to "borrow force cloud storage, Cloud era" the theme of cloud computing conference on the future of the five major information technology development direction, and demonstrated the clustering technology based Chuzhi cloud storage solutions, but also released to help users to the cloud ...

In general, the psychology of mass consumption is the more the function of it products the better, the more convenient to use the better. In the enterprise application market, users also have the same mentality, I hope IT system deployment and application of the simpler the better. Therefore, end-to-end, integration and other ideas gradually become popular. This is the user demand, on the other hand, because of mergers and acquisitions among manufacturers, servers, storage, networks, software and other resources slowly concentrated in the hands of a few large manufacturers, so that it has the ability to provide integrated solutions. 　　One of the best examples of the 2011 is the prevalence of all-in-one concepts. HT ...

hive is a Hadoop-based data warehouse tool that maps structured data files to a database table and provides full sql query capabilities to convert sql statements to MapReduce jobs. The advantage is low learning costs, you can quickly achieve simple MapReduce statistics through class SQL statements, without having to develop a dedicated MapReduce application, is very suitable for statistical analysis of data warehouse. Hadoop is a storage computing framework, mainly consists of two parts: 1, storage (...

End-to-end encryption policies must take into account everything from input to output and storage. Encryption technology is divided into five categories: file-level or folder-level encryption, volume or partition encryption, media-level encryption, field-level encryption and communication content encryption. They can be defined further by the encryption key storage mechanism. Let's take a look at the grim forecast: According to the US Privacy information exchange, One-third of the U.S. people will encounter the loss or leakage of personally identifiable information from companies that store data electronically this year. Whether that number is not exactly right, anyway the public knows the data leaks ...