In computing, a data warehouse appliance consists of an integrated set of servers, storage, operating system(s), DBMS and software specifically pre-installed and pre-optimized for data warehousing (DW). Alternatively, the term can also apply to similar software-only systems — purportedly very easy to install on specific recommended hardware configurations or preconfigured as a complete system - a true appliance.
DW appliances provide solutions for the mid-to-big data warehouse market, offering low-cost performance most commonly on data volumes in the terabyte to petabyte range.
Read more about Data Warehouse Appliance: Appliance Technology, History, Benefits, Application Uses, Trends
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