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Making Storage Real-time

Steve Modica, CTO, Small Tree

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Topics to Cover Who is Small Tree What is real-time What is Future Proof?

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Small Tree Started in 2003 Ex-SGI and Cray engineers Stuff we do

Drivers for Networking and StorageArmy WorkStorage and Switch Profiling and Configuration

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Realtime

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Step by Step to Real-time Define the load

BandwidthTiming

Measure the loadSimulation ToolsMeasurement Tools

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RAID Controller Issues Firmware Driver revs Interleave Read ahead Other features

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System Issues Bus speed Memory Kernel Resources

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Network Issues Flow Control Switch performance Driver tuning IO Balancing

Disk vs. NetworkClient distribution

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Client Issues Which platform to choose? Workload requirements Tuning Built in Ports vs. Small Tree ports

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Future ProofWhat does that mean?

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Another Iron Triangle

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Benefits of Simple NAS set ups Very easy to understand Based on Heterogeneous Protocols Scale well with Ethernet Easily maximize connected clients

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