The basic building block for a low-cost Database Storage Grid is a simple, modular, storage array. It consists of 1 or 2 controllers that manage a single shelf of 12 to 16 ATA disks. The controllers connect the storage array to a SAN or LAN network via 1 to 4 Fibre Channel, iSCSI, or NAS connections. The advent of low-cost ATA disk based storage arrays and low-cost storage networks and Oracle Database 10g has made it possible to create a Database Storage Grid. This paper describes the theoretical and practical aspects of building a Database Storage Grid. It also discusses the databases and environments that are ideal candidates for low-cost storage.
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