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Table of contents:

Objectivity/DB - Flexible Deployment

• Introduction
• Single Logical View
• Simple Distributed Servers
• Replaceable Components
• Configuration Parameters
• Processor Power
• Data Locality
• Input/Output Capabilities
• Network Bandwidth
• Concurrency
• Caching
• Data Usage Dynamics
• System Latency
• Fault Tolerance
• Geography/Mobility
• Security
• Configuration Examples

Processor Power

An Objectivity/DB client must have enough processing power to service object handling requests and to manage messaging and I/O requests. In general, at least a 500 MHz processor is required. If it is to manipulate remote data then it needs at least 100 Mbit Ethernet connectivity. It needs a minimum of 3 MB of RAM for Objectivity/DB, plus extra for the configurable in-memory cache (covered later).

If the client processor has inadequate power, RAM or connectivity then it should use a messaging protocol to send requests to an application server that executes the Objectivity/DB client code.
As more powerful processors are added to a system their full power can be exploited to run: client applications; application, data, lock or query servers; or any combination of these tasks.