Computer manufacturers often stress performance and availability in their marketing literature. Yet, reliability (R), availability (A), and scalability (S) are the three pillars that support mission-critical applications, and they all need appropriate attention. The elements of RAS are complimentary measures, but they are not the same. This article looks at the three pillars from a...
A large Japanese e-commerce company provides 24x7 shopping on a high-volume Java* cell phone application hosted by a four-node Oracle RAC in a Linux cluster. Oracle was used for the authorization system of a new digital money service with 300 tables...
Using unique and patented synchronous replication technology, Shadowbase ZDL ensures that all database changes made on a source system are successfully replicated to the target system before the source application is allowed to commit (make permanent) those changes. If the source system fails...
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