SOLID STATE DRIVE Just a really fast drive Jakub Topič, I3.B.
Transcript of SOLID STATE DRIVE Just a really fast drive Jakub Topič, I3.B.
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SOLID STATE DRIVEJust a really fast drive
Jakub Topič, I3.B
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WHAT IS A SSD?
• SSD = Solid State Drive
• Data storage device
• Solid state memory to store persistent data
• NAND-based flash memory or DRAM
• Same interfaces developed for HDDs
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ADVANTAGES
• High performance
• Faster seek time
• No moving parts
• High reliability
• Silent operation
• Low power
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DISADVANTAGES
• More expensive than traditional HDDs
• Less storage space
• Short lifetime
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COMPARISON
Solid State Drive Hard Disk Drive
Access time <0.1ms About 10ms
Read/Write speed Up to 600MB/s 50MB/s – 100MB/s
High reliability, no moving parts to fail mechanically
Low reliability, moving parts (subject to sudden failure)
Weight Small and light Large and heavy
Maximum capacity 2TB 4TB
Power consuption <2W 12W
Cost per GB $0.45/GB $0.05/GB
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WHY A SSD?• Three things that dictate the speed of your PC/Server:
• CPU, DRAM, and HDD
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APPLICATIONS
• Servers
• Desktop computers
• Laptops, ultrabooks
• Mobile devices (smartphones and tablets)
• Similar technology
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CONCLUSION
• SSDs are more superior than HDDs
• Due to the cost and the capacity limit, others may choose HDD over SSD
• SSDs will replace HDDs