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So what is Virtualization Software anyway? That’s a good question. Virtualization is the act of using virtual servers or software, to reduce the amount of physical servers needed to power an organization’s IT infrastructure. With that said, virtualization cuts costs by reducing energy consumption and server room cooling expenses. This article, originally written by Matt Peterson, will explain Application Virtualization and Server Virtualization in full detail. More:
There is a lot of buzz going around about Virtualization. What is Virtualization, and what benefits does it provide? In this article we will take a look at the technology to see how it can provide a great deal of flexibility and cost effectiveness for IT professionals and software developers.
Virtualization technology allows multiple virtual machines to run on a single host computer. These virtual machines can run different operating systems, such as Windows, Linux and UNIX. Each virtual machine has its own set of virtual hardware resources (e.g., CPU, RAM, Hard Drive, etc) allowing the operating system to run as if it were installed on a physical machine.
The benefits of Virtualization technology are far reaching. Many organizations have moved to the virtual machine solution to consolidate multiple servers, running side by side on a single physical machine. Server consolidation allows IT professionals to fully utilize server resources, while isolating virtual machines and allowing them to run different operating systems and applications. Software developers utilize virtual machine technology to quickly test applications on different operating systems, without the hassle of setting up multiple physical machines for testing or taking the risk of causing problems by testing in a production environment.
You can run Virtualization software on pretty much any platform. Once the software is installed it is simple to create virtual machine instances. Virtual machines are just a set of files located on the host machine. You configure your virtual machine settings on the host computer, install the operating system and you are ready to go. It is a very common practice to use a master image of a virtual machine. This master image can be a fully configured machine, with the operating system and all required applications installed. You can then rapidly deploy virtual machines by copying the master image to multiple Virtualization hosts to provide zero downtime and 100% server availability.
There are a number of Virtualization products available. VMWare, which is probably the most popular, recently announced that it will be releasing a free version of its GSX Server product. This will allow any organization to host virtual machines on either Windows or Linux hosts. Other Virtualization products include Microsoft’s Virtual Server and SWsoft’s Virtuozzo, just to name a few.
Matt Peterson is a Senior Consultant for N2 Network Solutions, a leader in Arizona IT Support, providing IT Outsourcing and VMWare Consulting: n2networksolutions.com
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Tags: information technology
Posted in SQL Server · December 18th, 2009 · Comments (0)
Database Administration with SQL Server – Database Software
A SQL (Structured Query Language) server is a complete system designed for the purpose of database management, development and administration. With the help of the SQL server software, users are able to create and handle large relational or structural databases and develop applications that increase the effectiveness of their business.
Microsoft SQL Server has always been the best database platform. It provides secure storage and when it comes to working with large databases no other product can be compared with SQL server. It is also very closely related to Visual Studio and The office suite, so it’s perfect for both database administrators and people who work with smaller and simpler databases
SQL servers have a large number of powerful tools that facilitate database maintenance, and administration. Among the most important ones are the Enterprise Manager, the Service Manager and the Query analyzer.
The Enterprise Manager allows its user to manage all the SQL server installations on a network and control all the databases from it. The Service Manager is responsible for controlling the processes and services of an SQL server Finally, the Query analyzer processes all the queries against any of the SQL databases.
The first version of Microsoft SQL server was released in 1993, the same time Windows NT 3.1 came out on the market, and after a few years, Microsoft SQL server 2000 was released. Compared to its previous versions, SQL server 2000 brings a lot of improvements and interesting new features, like XML support, functions that can be defined by the users themselves, indexed views and new data types. Also, some of the features that existed in the previous versions were enhanced in Microsoft SQL server 2000. Among the features that were enhanced you can find the full text search feature, the DBCC and. the backup and restore processes.
The last version of Microsoft SQL server was released in 2005 and it was, of course, called Microsoft SQL server 2005. This version is quite faster than SQL server 2000 and in the five years that passed since the first one was released a lot of new improvements and enhancements have been done. SQL server 2005 is not only a database administration tool, it also contains Messaging technologies, OLAP and Server integration services. It has a large variety of management tools integrated also and its security and database encryption systems have been seriously improved.
T-Sql has been implemented in order to handle errors better and the XML integration has gone deeper, now allowing XML to be stored in databases.
The new features of SQL 2005 are too many to enumerate, so we’ll just take a look at a few of the most important ones:
Database mirroring – if a database fails, the application connects to another database from a secondary server, and transfer isn’t interrupted Snapshots – if loss of data occurs or someone just made a mistake and modified some important data everything can be recovered because SQL server periodically takes ’snapshots’ of the database and uses them to restore the data Support for 64 bit processors Business Intelligence features built into SQL Server Analysis Services and Reporting Services Significant security upgrades Enhanced encryption capabilities .NET CLR, and Visual Studio integration
..and many more other useful features
SQL server 2000 and SQL server 2005 are the best and the most complex database management tools on the market, and they can do much more than just managing and administrating databases, so they are the best choice if your company needs database administration and maintenance.
A good source for more information on how to install, customize, and make the most use of a SQL Server implementation, visit the Microsoft practice section of www.unitekconsulting.com.
About the Author:
Shannon Margolis
IT Marketing Coordinator
www.unitekconsulting.com
View their website at: http://www.unitekconsulting.com
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Tags: database
Posted in SQL Server · December 18th, 2009 · Comments (0)