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Why You Should Buy 4 TB Hard Drives and Skip the 3 TB Ones  May 19, 2015 – 07:13 am

Why You Should Buy 4 TB Hard Drives and Skip the 3 TB OnesIn a followup study to the insightful reports on the most reliable hard drive brands and consumer versus enterprise hard drives, Backblaze found some interesting data that could help you choose your next drive. One piece of advice: stay away from 3 TB drives.

The backup company evaluated their 41, 213 disk drives (most of them consumer ones) for annual failure rates, and recommend 4 TB drives for their value and reliability:

We like every one of the 4 TB drives we bought this year. For the price, you get a lot of storage, and the drive failure rates have been really low. The Seagate Desktop HDD.15 has had the best price, and we have a LOT of them. Over 12 thousand of them. The failure rate is a nice low 2.6% per year. Low price and reliability is good for business.

The HGST drives, while priced a little higher, have an even lower failure rate, at 1.4%. It's not enough of a difference to be a big factor in our purchasing, but when there's a good price, we grab some. We have over 12 thousand of these drives.

3 TB drives, across all the brands, though, aren't as great:

The HGST Deskstar 5K3000 3 TB drives have proven to be very reliable, but expensive relative to other models (including similar 4 TB drives by HGST). The Western Digital Red 3 TB drives annual failure rate of 7.6% is a bit high but acceptable. The Seagate Barracuda 7200.14 3 TB drives are another story. We'll cover how we handled their failure rates in a future blog post.

Source: lifehacker.com

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