SOLID STATE DRIVEJust a really fast drive

Jakub Topič, I3.B

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

ADVANTAGES

• High performance

• Faster seek time

• No moving parts

• High reliability

• Silent operation

• Low power

DISADVANTAGES

• More expensive than traditional HDDs

• Less storage space

• Short lifetime

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

WHY A SSD?• Three things that dictate the speed of your PC/Server:

• CPU, DRAM, and HDD

APPLICATIONS

• Servers

• Desktop computers

• Laptops, ultrabooks

• Mobile devices (smartphones and tablets)

• Similar technology

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