data federation vs data virtualization

Brief introduction Web services have become a major mechanism for data exchange, access, and manipulation. Its underlying standards are ripe, and some of its advantages, such as loose coupling and virtualization, have made a big step towards the goal of implementing a service-oriented architecture (service-oriented Architecture,soa). Many surveys have shown that being difficult to achieve is one of the mai

deduplication? This starts with the data stored on the primary storage. Unlike a backup, in primary storage, the system is at any time in the I/O exchange operation, the primary storage data changes are occurring at any time, this feature also determines that primary storage is not like the backup domain (typical example: Enterprise to do a daily incremental backup, a weekly full backup, and the last, cyc

expenditures. In addition, it is easier to scale a team in an external environment. (4) scalability and modularization In the past few years, only the scalability and modular architecture of hardware and software have been available to meet increasing demands. Given the pressure on infrastructure costs and needs, it is necessary to implement a scalable and modular design approach for the data center infrastructure. This approach, for example, applies

initially sought LEED certification for the purpose of attracting more government business. In addition, there are operational cost factors. Public companies that supply electricity to data centers are now charging fairly well, but the price will expire in 2010, when the cost of electricity will rise by as much as 40%. This number makes people have to pay attention to the problem of energy consumption. Wood's first priority is to measure the actual

processing of cloud computing, distributed database, cloud storage and virtualization technology, so big data mining and processing have to use cloud technology. Application of Big Data. Big data can be applied to all walks of life, the huge data collected by people for ana

UnitA network company in Suzhou"Physical and logical storage"The company uses an inexpensive storage model that uses iSCSI to achieve FC San functionality.The physical storage architecture is on a DELL server, using FreeNAS for ISCSI, and then using two Dell servers to do the ESXi5.0 virtualization system.FreeNAS layer for the UFS2 file system, the entire storage to build a sparse mode of file, hanging to ESXi5.0 system.There are 5 virtual machines ru

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address in the Mac address to upgrade the virtual LAN. Wilde said that HP will continue to invest in PBB through the development of current standards such as SPB. SPB will provide scalability, multi-tenant service, elasticity, and multi-path between Edges and cores. Although these standards have begun to become solutions for service providers and carrier customers, they are more closely related to the enterprise environment of large-scale data center

site contains a dynamic Web page with a large amount of traffic, the load on the database will be high. Because most database requests are read, memcached can significantly reduce the database load.2) If the load on the database server is low but the CPU usage is high, you can cache the computed results (computed objects) and the rendered page template (enderred templates).3) Use memcached to cache session data and temporary

site contains a dynamic Web page with a large amount of traffic, the load on the database will be high. Because most database requests are read, memcached can significantly reduce the database load.2) If the load on the database server is low but the CPU usage is high, you can cache the computed results (computed objects) and the rendered page template (enderred templates).3) Use memcached to cache session data and temporary

Learning Data Science at the Command Line, Win7 under the installation environment is encountered some small problems, finally through the Baidu solution.1) After the computer installs the Vagrant+virtual box, the new working directory, CMD enters the working directory$ vagrant Init Data-science-toolbox/data-science-at-the-command-lineA vagrantfile file was gener

Now there are more and more backup application software in the market, which one is more suitable for enterprise level? This is a different answer for every business. So the small series to recommend some of them, we can use to see.1. Symantec Backup Exec and NetBackupBackup exec integrates deduplication and archiving technologies for Windows, Linux, Macs, and a variety of virtualization platforms. NetBackup is another Symantec-based backup product th

Primary file System storage optimization (that is, to cram more data into the same space) continues to grow in popularity. The challenge here is that duplicate data deletion from primary storage is not without rules. You can't delete this duplicate data, and you can't delete the duplicate data, you have to recognize th

the energy reaching the Earth at about 2.2 billion points, is the main source of light and heat required by life on Earth. The sun is the most closely related celestial body except the earth and the only star that can examine its surface structure in detail. Therefore, people have always attached great importance to the study of the sun. The following table lists some basic data about the sun. Sun basic data