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Data Recording Requirements & Options

Selection of recording devices should be based on current and expected requirements. Typical requirements include: Performance Capacity Data Availability Environmental Scalability Flexibility Cost. Modular Data Recorder Support for multiple input streams

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Data Recording Requirements & Options

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  1. Selection of recording devices should be based on current and expected requirements. Typical requirements include: Performance Capacity Data Availability Environmental Scalability Flexibility Cost Modular Data Recorder Support for multiple input streams Ability to playback data over one or more interfaces Support for disk grouping & virtualization Ability to directly interface with A/D devices High Performance General Purpose Computer Standard computing device Inexpensive Low Performance Data Recording Requirements & Options Option 1 Two Options Option 2

  2. General Purpose Computer or Data Recorder? Sensors feed into a PC where it will be carried to the drive controller via the PCI bus Industrial PC Sensor Multiple sensors can be supported but the controller quickly becomes a bottleneck SCSI JBOD 2 JBOD 1 General Purpose Computers may provide bandwidths from 12MB/s to 50MB/s

  3. Multiple sensor feeds X500MEZZ FPDP GPS FPDP VME Chassis Sensors FC CPMDR Fibre Channel FC AL 1 JBOD 1 JBOD 2 FC AL 2 Host Data is striped across each Disk, and across each JBOD General Purpose Computer or Data Recorder? Typically Data Recorders provide SUSTAINED bandwidths from 80MB/s to 360MB/s

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