Oracle Exadata is 'n product family of high-performance data warehouse appliances that is co-developed by both Oracle and HP. As implied by the name, this product will compete directly with teradata.
The idea is to make the storage database aware and push SQL down to the disks for faster scanning. Apparently an Exadata can scan 1 TB of data in about 3.5 seconds by scanning several (or all) disks in parallel with Oracle's Parallel Query technology.
Components
Oracle Exadata consists of the following products:
HP Oracle Exadata Storage Servers
12 disk drives per cell. All disks can be scanned in parallel for data. Database processing is performed within the storage server. Instead of blocks, result sets are returned to the machine running the database.
HP Oracle Database Machine
Complete solution with storage (warehouse-in-a-box idea). Includes 50 to 268 TB of storage with infiniband switches. Up to 6 of these servers can be clustered together. Can run Oracle RAC.
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