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Backblaze Releases Q2 2020 Hard Drive Stats for 142,630 Spinning HDDs

As of June 30, 2020, Backblaze had 142,630 spinning hard drives in our cloud storage ecosystem spread across four data centers. Of that number, there were 2,271 boot drives and 140,059 data drives. This review looks at the Q2 2020 and lifetime hard drive failure rates of the data drive models currently in operation in our data centers and provides a handful of insights and observations along the way. As always, we look forward to your comments.

Quarterly Hard Drive Failure Stats for Q2 2020
At the end of Q2 2020, Backblaze was using 140,059 hard drives to store customer data. For our evaluation we remove from consideration those drive models for which we did not have at least 60 drives (see why below). This leaves us with 139,867 hard drives in our review. The table below covers what happened in Q2 2020.

Corsair Recalls SF Series of PSUs due to Failure Concerns

Corsair's SF series of PSUs has been long present as part of the company's offerings, designed to the satisfy small form factor crowd with its SFX size. Today, Corsair has announced that they will be recalling some units and replace them free of charge, including free shipping. Corsair says that "We have recently identified higher-than-normal RMA rates among our SF family of small-form-factor PSUs. Following a thorough investigation, we have found a potential issue that can manifest when the PSU is exposed to a combination of both high temperatures, and high humidity. This regrettably can cause the PSU to fail. This issue potentially affects units in lot codes 194448xx to 201148xx, manufactured between October 2019 and March 2020."

The problem is located in the AC conversion part of the PSU, not the DC one which interacts with PC components, so Corsairs points out that all of the components are safe even if PSU fails. To get a replacement PSU, Corsair offers affected customers to submit their tickets here, with the title "SF Series voluntary product replacement", so they can easily identify customers and give them quicker replacement units.
Corsair SF600 PSU

Backblaze Releases Hard Drive Stats for Q1 2020 - Seagate Worst Performer

As of March 31, 2020, Backblaze had 132,339 spinning hard drives in our cloud storage ecosystem spread across four data centers. Of that number, there were 2,380 boot drives and 129,959 data drives. This review looks at the Q1 2020 and lifetime hard drive failure rates of the data drive models currently in operation in our data centers and provides a handful of insights and observations along the way. In addition, near the end of the post, we review a few 2019 predictions we posed a year ago. As always, we look forward to your comments.
Hard Drive Failure Stats for Q1 2020

At the end of Q1 2020, Backblaze was using 129,959 hard drives to store customer 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 60 drives (see why below). This leaves us with 129,764 hard drives. The table below covers what happened in Q1 2020.

Backblaze Releases Hard Drive Stats for Q1 2019

As of March 31, 2019, Backblaze had 106,238 spinning hard drives in our cloud storage ecosystem spread across three data centers. Of that number, there were 1,913 boot drives and 104,325 data drives. This review looks at the Q1 2019 and lifetime hard drive failure rates of the data drive models currently in operation in our data centers and provides a handful of insights and observations along the way.

Hard Drive Failure Stats for Q1 2019
At the end of Q1 2019, Backblaze was using 104,325 hard drives 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 104,130 hard drives. The table below covers what happened in Q1 2019.

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.
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