Hard Drive Stats for Q1 2018

By | May 1st, 2018

For the most recent Hard Drive Reliability Statistics, as well as the raw hard drive test data, visit Hard Drive Data and 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….

Backblaze Hard Drive Stats for 2017

By | February 1st, 2018

Starting in 2013, Backblaze has recorded and saved daily statistics from all the hard drives in our data centers. As of the end of 2017, we had 93,240 spinning hard drives and 88 million statistical records totaling 23 GB of data. Here is the summary of our findings for 2017 based on that data.

Hard Drive Stats for Q2 2017

By | August 29th, 2017

In this update, we’ll review the Q2 2017 and lifetime hard drive failure rates for all our current drive models. We also look at how our drive migration strategy is changing the drives we use and we’ll check in on our enterprise class drives to see how they are doing. Along the way we’ll share our observations and insights and as always we welcome your comments and critiques.

Hard Drive Stats for Q1 2017

By | May 9th, 2017

In this update, we’ll review the Q1 2017 and lifetime hard drive failure rates for all our current drive models, and we’ll look at a relatively new class of drives for us — “enterprise.” We’ll share our observations and insights.

Backblaze Hard Drive Stats for 2016

By | January 31st, 2017

Backblaze has recorded and saved daily hard drive statistics from the drives in our data centers since April 2013. At the end of 2016 we had 73,653 spinning hard drives. Of that number, there were 1,553 boot drives and 72,100 data drives. This post looks at the hard drive statistics of the data drives we monitor. We’ll first look at the stats for Q4 2016, then present the data for all of 2016, and finish with the lifetime statistics for all of the drives Backblaze has used in our cloud storage data centers since we started keeping track. Along the way we’ll share observations and insights on the data presented.

Hard Drive Stats for Q3 2016: Less is More

By | November 15th, 2016

In our last report for Q2 2016, we counted 68,813 spinning hard drives in operation. For Q3 2016 we have 67,642 drives, or 1,171 fewer hard drives. Stop, put down that Twitter account, Backblaze is not shrinking. In fact, we’re growing very nicely and are approaching 300 petabytes of data under our management. We have fewer drives because over the last quarter we swapped out more than 3,500 2 terabyte (TB) HGST and WDC hard drives for 2,400 8 TB Seagate drives. So we have fewer drives, but more data. Lots more data! We’ll get into the specifics a little later on, but first, let’s take a look at our Q3 2016 drive stats.

What SMART Stats Tell Us About Hard Drives

By | October 6th, 2016

What if a hard drive could tell you it was going to fail before it actually did? Is that possible? Each day Backblaze records the SMART stats that are reported by the 67,814 hard drives we have spinning in our Sacramento data center. SMART stands for Self-Monitoring, Analysis and Reporting Technology and is a monitoring….