SAP BI Accelerator
Encyclopedia
In computing, the SAP BW Accelerator is a computer appliance
Computer appliance
A computer appliance is generally a separate and discrete hardware device with integrated software , specifically designed to provide a specific computing resource. These devices became known as "appliances" because of their similarity to home appliances, which are generally "closed and sealed" –...

 - preinstalled software on predefined hardware - which is used to speed up OLAP
OLAP
In computing, online analytical processing, or OLAP , is an approach to swiftly answer multi-dimensional analytical queries. OLAP is part of the broader category of business intelligence, which also encompasses relational reporting and data mining...

 queries. The software was initially known as the BI Accelerater.

SAP BW Accelerator includes indexes that are vertically inverted reproductions of all
the data included in InfoCubes (i.e., fact and dimension tables as well as master
data). Note that there is no relational or other database management systems in BW
Accelerator. There is only a file system, and indexes are essentially held as flat files.
The second primary component of SAP BW Accelerator is the engine that processes
the queries in memory - it uses the SAP TREX search engine
TREX search engine
TREX is a search engine in the SAP NetWeaver integrated technology platform produced by SAP AG. The TREX engine is a standalone component that can be used in a range of system environments but is used primarily as an integral part of such SAP products as Enterprise Portal, Knowledge Warehouse, and...

. The software is running on an expandable rack of blade
servers. The operating system used for BW Accelerator is 64-bit SUSE Linux Enterprise Server
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server is a Linux distribution supplied by SUSE and targeted at the business market. It is targeted for servers, mainframes, and workstations but can be installed on desktop computers for testing as well. New major versions are released at an interval of 3-4 years, while...

 (SLES).

Hardware partners

The software is optimized for specific hardware and operating system combinations.

The list of partners which deliver the appliance is:

The product is now going out to the free market; i.e. it is not only the partners that are allowed to offer this product. As always when becoming more open markets, lower prices might therefore be expected.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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