Consistent 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 ...

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 ...

The concept of large data, for domestic enterprises may be slightly unfamiliar, the mainland is currently engaged in this area of small enterprises. But in foreign countries, big data is seen by technology companies as another big business opportunity after cloud computing, with a large number of well-known companies, including Microsoft, Google, Amazon and Microsoft, that have nuggets in the market. In addition, many start-ups are also starting to join the big-data gold rush, an area that has become a real Red sea. In this paper, the author of the world today in the large data field of the most powerful enterprises, some of them are computers or the Internet field of the Giants, there are ...

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.

"Software definition" has become the IT Hot word, software definition network, software definition data center, software definition storage, in short, software can define everything. In the large data age, the importance of data is not much to say, and the protection of data will be gradually upgraded. 　　EMC says that data backup will evolve in the direction of data protection, and over time data protection needs to move toward data management! In the April 9 communication meeting, EMC Dpad Division Greater China Director Chen and senior product manager Li Junpeng and we share the current EMC data ...

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.).

Within a few years, the NoSQL database has focused attention on performance, scalability, flexible patterns, and analytical capabilities. 　　Although relational databases are still a good choice for some use cases, like structural data and applications that require acid transactions, NoSQL is more advantageous in the following use cases: The data stored is essentially semi-structured or loosely-structured. 　　Requires a certain level of performance and scalability. 　　The application to access the data is consistent with the final consistency. Non-relational databases typically support the following features: Flexible ...

As the most popular open source database, MySQL is widely used in Web applications and other small and medium-sized projects. However, in many large IT companies, MySQL has gradually deviated from the original open source version after being highly optimized and customized, more like a branch, such as the Webscalesql of Facebook, which was not long ago open source. 　　Recently, Mr. Xiong has published a blog post, from the perspective of large-scale web site architecture development of the changes in MySQL application, here for you to share. This article mainly describes the different and ...

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 ...

It was easy to choose a database two or three years ago. Well-funded companies will choose Oracle databases, and companies that use Microsoft products are usually SQL Server, while budget-less companies will choose MySQL. Now, however, the situation is much different. In the last two or three years, many companies have launched their own Open-source projects to store information. In many cases, these projects discard traditional relational database guidelines. Many people refer to these items as NoSQL, the abbreviation for "not only SQL." Although some NoSQL number ...