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Tuesday, June 7, 2011
Monday, June 6, 2011
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Sunday, June 5, 2011
OLAP - Your Data Analyst
business houses these days to use information technology to significantly increase their business and the productivity of their employees. They need the computer system data is stored on the database server to another. OLAP is a system that stores huge amounts of data in a structured format, using the data, develops and produces various types of reports that can be viewed from different angles and analyzed by managers, analysts, technicians and managers to takesome decisions to help current and future business development.
The large amount of data that is used by OLAP is available in multi-dimensional way. A multi-dimensional database is a database optimized for data warehousing and reporting on-line analytical processing (OLAP) tools. The raw data are stored in a relational database. The OLAP system had several categories, one of them is MOLAP (Multi-Dimensional OLAP) that accesses data, multidimensional database that contains theAbility to process data very quickly. A multi-dimensional database uses the concept of data cube, which is the size of the data, in which a report can be viewed with different species. The database tables to create the cube.
Computers Servers
The OLAP application is to be understood with the goal of treatment is given to requests for business and critical decision-making process adopted during the design. OLAP enables rapid access to large stocks of performance data are considered by manyAngle and allows the management of a company and analysts.
The three main types of OLAP multidimensional OLAP, we have just discussed, except for hybrid OLAP and relational OLAP. MOLAP is widely known for his speed and ability to provide the necessary data and reports in a dynamic way, which is used more informative to decision makers in your organization. The relational OLAP is a system that takes data directly from the relational databaseshow them reports or query results. relational database is a system that the data described in the official tables, the data is organized and will in many ways without reorganizing the tables in the database. A hybrid OLAP and ROLAP MOLAP uses both systems for the delivery of results.
OLAP - Your Data AnalystSaturday, June 4, 2011
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Friday, June 3, 2011
Heat rises - Re-with the heat generated by servers
With the attention of the green movement more and more every day, data centers are starting to get more and more flack for the amount of the benefit of the use and companies are looking for ways to start greening in up. " Most of the initiatives, the data are included in the recycling of power within the institution, the use of energy-efficient server and cooling the server room to better use. These efforts are great and lead to waste less energy and moreefficient system.
But with all the attention focused on savings, you pay little for a better utilization of heat through the server generates a. As it stands, this heat is wasted. It is only used by the ease with which the cooling system of the computer center. Most often this is in the form of air conditioning or water.
Computers Servers
Opportunities lost
But what if there is another way - what if the heatgenerated by the server could be made better available? It is. The solution lies in the heat generated by the server and set it to something useful, rather than simply discard the atmosphere.
Energy is wasted all the time these days. Companies spend thousands of dollars to remove the space around the heat from their servers, while simultaneously spending more money to heat other parts of the building. This heat is amissed opportunities in terms of energy efficiency.
There are some companies who have seen this opportunity and have taken the initiative to put the proper functioning of the heat generated by the server. There is no limit to the potential that he used to use and productive.
Heat recovery
An example of a company with the heat from the existing server is Quebecor, a Canadian media company. Located inWinnipeg, where temperatures often up to 35 degrees Celsius below zero in winter. The company noted that even in the coldest months of the year have been thousands of dollars to spend on data center cooling, despite the cold temperatures, hard out. At the same time they were just spending so much money heating other parts of the building.
It is only reasonable. Fortunately, the Regional Director for the company saw this as aBusiness opportunity for the reuse of heat generated by the server saves energy and reduces costs all round. So this is exactly what he was doing. Instead of just cooling the server room, introduced a system in which excess heat was excited and pumped to other parts of the building to provide heat.
The heat generated by the server, is used to heat the offices upstairs, the host of the Winnipeg SunMore heat is delivered to the warehouse on the opposite side of the road that is often cold to open the door and close all day distributed. What heat is left again put out.
Heating a swimming pool
Another company in Switzerland, had a similar idea to use the heat generated by the server for good. This company has more than 25 feet underground and 500 meters from the pool. Instead of wastingthe heat generated by the server, the company decided to close the swimming pool heat pump to provide the necessary heat to it with. With custom cooling devices powered by overhead and 200 servers, can in the air with hot exhaust gases to heat water and then filter them in the pool. This creates a practical application for the excess heat, eliminating the need for the pool to use oil as an energy source.
Going Green (home)
The most recent example of a data center and share their excess heat for a good cause is at the University of Notre Dame. Rising energy costs are forcing the local greenhouse. Currently costs about $ 1,000 per day for the greenhouse effect, the politicians have decided to heat too much to ask taxpayers to pay.
That's where Notre Dame comes a new kind of data centers that have developed housed in a standard package and in the immediate vicinity of the greenhouse. to heat the excess heat from the data center in the greenhouse can be pumped. This reduces the cost for the operation of the emissions enough so that it stops.
As an added bonus, use the data center humidity in the greenhouse in winter through the fall and spring is produced. This mutual relationship not only benefits the greenhouse effect, but> Server e.
The future of the Heat
Reuse the heat from data centers has many applications and great potential as an energy-saving initiatives. Most companies do not think in this direction though. But they should. Building efficient server and cooling systems, reducing the amount of heat produced and reuse of heat generated, are all part of an energy-efficient data center.Companies have many options to choose from and reuse of waste heat is another, as they contribute to the amount of waste generated in their work.
Heat rises - Re-with the heat generated by serversThursday, June 2, 2011
Wednesday, June 1, 2011
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