Backblaze data shows SSD failure patterns on trend with HDDs


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Aug 17, 2014
Often favored for their increased speed, decreased footprint, and enhanced durability, SSDs have become an industry standard storage alternative for everyone from weekend gamers to data centers. A recent blog post by Backblaze's Andy Klein, however, tells a much different tale regarding their purported reliability and longevity.

Backblaze is a cloud storage and backup provider with four data centers across the US and Europe, and they rely on both SSDs and HDDs for server boot drives, log storage, system diagnostics, and various system reporting tasks. Both types of drives serve the same function in Backblaze's environments and support continuous writing, reading, and file deletion in addition to server startup operations.

In the company's most recent annualized failure rates (AFR) data, they compared statistics for SSDs and HDDs performing the same workloads in the same cloud storage environments. The data tells us that SSDs do in fact experience failure at a rate far lower than the HDDs, however, Klein highlights the fact that many of the HDDs referenced were several years older than their SSD equivalents.


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