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Backblaze Releases Hard Drive Stats for Q3 2018: Less is More

As of September 30, 2018 Backblaze had 99,636 spinning hard drives. Of that number, there were 1,866 boot drives and 97,770 data drives. This review looks at the quarterly and lifetime statistics for the data drive models in operation in our data centers. In addition, we'll say goodbye to the last of our 3TB drives, hello to our new 12TB HGST drives, and we'll explain how we have 584 fewer drives than last quarter, but have added over 40 petabytes of storage.

Hard Drive Reliability Statistics for Q3 2018
At the end of Q3 2018, Backblaze was monitoring 97,770 hard drives used to store data. For our evaluation, we remove from consideration those drives that were used for testing purposes and those drive models for which we did not have at least 45 drives (see why below). This leaves us with 97,600 hard drives. The table below covers what happened in Q3 2018.

BACKBLAZE Releases HDD Stats for Q2 2018

As of June 30, 2018 we had 100,254 spinning hard drives in Backblaze's data centers. Of that number, there were 1,989 boot drives and 98,265 data drives. This review looks at the quarterly and lifetime statistics for the data drive models in operation in our data centers. We'll also take another look at comparing enterprise and consumer drives, get a first look at our 14 TB Toshiba drives, and introduce you to two new SMART stats. Along the way, we'll share observations and insights on the data presented and we look forward to you doing the same in the comments.
Hard Drive Reliability Statistics for Q2 2018

Of the 98,265 hard drives we were monitoring at the end of Q2 2018, we removed from consideration those drives used for testing purposes and those drive models for which we did not have at least 45 drives. This leaves us with 98,184 hard drives. The table below covers just Q2 2018.

Backblaze Releases Q1 2018 Hard Drive Longevity, Reliability Stats

As of March 31, 2018 we had 100,110 spinning hard drives. Of that number, there were 1,922 boot drives and 98,188 data drives. This review looks at the quarterly and lifetime statistics for the data drive models in operation in our data centers. We'll also take a look at why we are collecting and reporting 10 new SMART attributes and take a sneak peek at some 8 TB Toshiba drives. Along the way, we'll share observations and insights on the data presented and we look forward to you doing the same in the comments.

Backblaze Releases Hard Drive Stats for 2017, HGST Most Reliable

Overview
At the end of 2017 we had 93,240 spinning hard drives. Of that number, there were 1,935 boot drives and 91,305 data drives. This post looks at the hard drive statistics of the data drives we monitor. We'll review the stats for Q4 2017, all of 2017, and the lifetime statistics for all of the drives Backblaze has used in our cloud storage data centers since we started keeping track.

Hard Drive Reliability Statistics for Q4 2017
At the end of Q4 2017 Backblaze was monitoring 91,305 hard drives used to store data. For our evaluation we remove from consideration those drives which were used for testing purposes and those drive models for which we did not have at least 45 drives (read why after the chart). This leaves us with 91,243 hard drives. The table below is for the period of Q4 2017.

What is HAMR and How Does It Enable the High-Capacity Needs of the Future?

The following was posted by Seagate Senior Vice President and Chief Technology Officer Mark Re, in a Guest Blog Post on Backblaze: "Earlier this year Seagate announced plans to make the first hard drives using Heat-Assisted Magnetic Recording, or HAMR, available by the end of 2018 in pilot volumes. Even as today's market has embraced 10TB+ drives, the need for 20TB+ drives remains imperative in the relative near term. HAMR is the Seagate research team's next major advance in hard drive technology.

HAMR is a technology that over time will enable a big increase in the amount of data that can be stored on a disk. A small laser is attached to a recording head, designed to heat a tiny spot on the disk where the data will be written. This allows a smaller bit cell to be written as either a 0 or a 1. The smaller bit cell size enables more bits to be crammed into a given surface area - increasing the areal density of data, and increasing drive capacity.

Backblaze's 2016 HDD Failure Stats Revealed: HGST the Most Reliable

Backblaze has just revealed their HDD failure rates statistics, with updates regarding 2016's Q4 and full-year analysis. These 2016 results join the company's statistics, which started being collected and collated in April 2013, to shed some light on the most - and least reliable - manufacturers. A total of 1,225 drives failed in 2016, which means the drive failure rate for 2016 was just 1.95 percent, a improving over the 2.47 percent that died in 2015 and miles below the 6.39 percent that hit the garbage bin in 2014.

Organizing 2016's failure rates by drive size, independent of manufacturer, we see that 3 TB hard drives are the most reliable (with 1,40% failure rates), with 5 TB hard drives being the least reliable (at a 2,22% failure rate). When we organize the drives by manufacturer, HGST, which powers 34% (24,545) of the total drives (71,939), claims the reliability crown, with a measly 0,60% failure rate, and WDC bringing up the rear on reliability terms, with an average 3,88% failure rate, while simultaneously being one of the least represented manufacturers, with only 1,626 HDDs being used from the manufacturer.
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