By the numbers: Solid state vs. enterprise class hard drives

Cost per gigabyte*
Hard drive:
Solid state: $21.71

Mean time between failures**
Hard drive:
300,000-1.2 million hours
Solid state: 2 million hours

In this report:

The bottom line on solid state drives
Solid-state drives eventually will change the IT and physical architectures of most storage systems

Average input/output operations per second ***
Hard drive:
As much as 2,152 megabits/sec
Solid state: As much as 11,718 megabits/sec

*Based on average price of an HP Integrity 146G 10k SAS Drive ($235) and the price of Intel X-25E Extreme SSD 32G SATA drive ($695)

**Industry estimates

***Based on benchmarks conducted by Tom's Hardware for use in a Web server-styled workload (,3.html)

About the Author

Joab Jackson is the senior technology editor for Government Computer News.

inside gcn

  • power grid (elxeneize/

    Electric grid protection through low-cost sensors, machine learning

Reader Comments

Please post your comments here. Comments are moderated, so they may not appear immediately after submitting. We will not post comments that we consider abusive or off-topic.

Please type the letters/numbers you see above

More from 1105 Public Sector Media Group