5 technologies in search of a data center preso.pdf · Disclosure • Companies hire me to help •...
Transcript of 5 technologies in search of a data center preso.pdf · Disclosure • Companies hire me to help •...
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5 technologies in search of a data center
Robin HarrisStorageMojo
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About
• Writer, analyst, consultant & blogger
• StorageMojo.com
• Storage Bits at http://blogs.zdnet.com/storage/
• Over 25 years in the industry
• DEC, Sun, Quantum more
• What's with the rocks?
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Disclosure
• Companies hire me to help
• I sometimes buy or receive stock
• Marketing consultant
• Video white papers, white papers
• Competitive analysis, strategic planning
• Writing, messaging, new media
• Inline disclosure of relationships, stock
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Data center Mojo
• 2.5" enterprise drives
• High-end SSDs
• Guaranteed uptime
• 10 GigE
• Cloud storage
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Disruptive technology
• Christensen’s misleading name for changing the economic dynamic
• Technology = $$$$
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2.5" disks
• 5-6 actuators - not 1
• ~1/3 - 1/4 the power per spindle
• 3x the density
• + power cycles, shock & vibe
Big in a small way
StorageMojo
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2.5" use model
• Floor space, not power
• Re-architect the array: 2.5 + SSD
• Over-provision for availability
StorageMojo
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Enterprise flash SSDs
• Miracle cure for data center ills!
• Based on quantum tunneling
Quantum = Wonderful!
The marketing take:
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Enterprise flash SSDs
• How would we have used FLASH in 1957?
• In a DISK DRIVE?
StorageMojo
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The SSD problem
• The problem: flash translation layer
• IP secrecy
• Many trade-offs whose effects we don't yet understand
• Data placement
• Write ordering
• Workload management
StorageMojo
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The flash problemStorageMojo
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The flash SSD take
• Great variety in performance
• Big potholes
• Complexity is the big surprise
StorageMojo
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Rethinking flash SSDs
• Array SSDs easy win - what next?
• Network cache for write offloading
• Array on a card
• Massive memory servers
The future is not the past re-invented
StorageMojo
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Guaranteed uptime
• Do you miss the TV repairman? Your 3,000 mile tune-up?
• Xiotech’s ISE
• Atrato’s Velocity 1000
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Guaranteed uptime
• IT is a factory
• Minimize variability
• More consistent results
StorageMojo
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10 GigE
• Fast and (still) expensive
• Will it kill Fibre Channel?
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10 GigE
• No - but new SANs will move to 10 GigE
• Dynamics:
• Shrinking FC advantage over 10 GigE
• OLTP in decline - cooler data
• FCoE - the final nail in the FC's coffin
StorageMojo
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Cloud storage
• S3 problem: ~99.9% uptime
• Options:
• Private cloud
• EMC’s Maui: outsource or private
• Other companies
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Cloud over Maui
• EMC appears to be building a sophisticated geo-aware global cluster for cloud storage
• Pi Corp acquisition is adding advanced metadata management
• Very tough set of problems
StorageMojo
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Cloud architecture
• Global enterprises will need a geo-aware cluster-cloud
• Individuals and SME - less demanding
• Global cluster vs CDN
StorageMojo
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Conclusion
• Turmoil in data center architectures
• Google set it off
• Multiple competing technologies
• Evolving customer needs
Forecast: an interesting decade
StorageMojo
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Questions?