Many MLC flash vendors claim their drives can withstand multiple terabytes of writes per day -- like 10 full-disk capacity writes per day for five years -- yet no enterprise has actually used one of these drives for that long. What’s the most convincing evidence you’ve seen that we should believe these claims of long-term MLC SSD reliability?
As the flash controllers become more sophisticated, they’re able to manage the flash media more effectively. In their testing labs, manufacturers can write the full-disk capacity continuously as quickly as possible, achieving higher rates than users would experience in real-world operations. After seeing enough of these test results they’re able to calculate the failure rates and expectations.
As these SSDs are being introduced from established companies who have longer product histories and service and support teams, they’re able to place five-year warranties on enterprise-class SSDs and fully expect that these products will last that long. However, this does not absolve users from prudent practices such as backups, and it’s no different for hard drives which also fail from time-to-time.
Dig Deeper on Solid-state storage
Related Q&A from Dennis Martin
RDMA technology can help speed up I/O in storage environments by bypassing copy processes in the software stack when data is called up from a ... Continue Reading
Remote Direct Memory Access is a good way to reduce latency in flash environments and works with InfiniBand and some Ethernet connections. Continue Reading
Dennis Martin of Demartek discusses creating DIY hybrid SSD arrays by adding flash drives to an existing array. Continue Reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.