News Posts matching "Reliability"

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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 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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