Sun Microsystems White Paper Sample

"Today’s rapidly growing data sets, coupled with business requirements to retain older data online, requires databases to simultaneously manage high-value and low-value information. As a result, traditional homogeneous storage systems present significant business and operational trade-offs. A storage system designed to meet the needs of the most valuable data often is not economically viable for storing less valuable data. At the same time, designing a system to meet the needs of less valuable data can result in costly availability and performance escalations for access to valuable data."

"In practice, a tiered storage solution that places data on different storage devices appropriate for the business value of the data presents a better balance of business requirements and storage technology. The success of a tiered storage system depends on matching data and storage resources. Reliability, availability, and serviceability (RAS), access rate, and access time are critical specifications for small-block random access I/O typically found in online transaction processing (OLTP) workloads." ...