Hard Drive Reliability Stats for Q1 2015

By | May 21st, 2015

Check out the latest Hard Drive Stats. Over the past year we’ve been releasing hard drive reliability statistics based on the drives we use to store customer data for our online backup business. As of the end of Q1 2015 we had 44,252 hard drives spinning in our datacenter. If we subtract boot drives and….

A Look at Backblaze’s Toshiba Hard Drives

By | May 13th, 2015

Over the past year or so we’ve covered the virtues and vices of nearly all the different hard drives we use in our Backblaze Storage Pods. From HGST to Seagate to Western Digital hard drives, we’ve charted drive hours, plotted failure rates, reported on drive temperature and more. The one missing brand: Toshiba. We’ve had….

Our 6TB Hard Drive Face-Off Revisited

By | April 30th, 2015

A few months back we published our initial evaluation of 6TB drives, comparing Seagate (model ST6000DX000) and Western Digital (WD60EFRX). Both drives performed well in our evaluation of 45 drives each, but we wanted to see if the results held up as we scaled the quantity of drives. We now have 450 Seagate and 495….

CSI: Backblaze – Dissecting 3TB Drive Failure

By | April 15th, 2015

Beginning in January 2012, Backblaze deployed 4,829 Seagate 3TB hard drives, model ST3000DM001, into Backblaze Storage Pods. In our experience, 80% of the hard drives we deploy will function at least 4 years. As of March 31, 2015, just 10% of the Seagate 3TB drives deployed in 2012 are still in service. This is the….

Backblaze Vaults: Zettabyte-Scale Cloud Storage Architecture

By | March 11th, 2015

We are thrilled to share the results of a project that has engaged the Backblaze engineering team for the last year: Backblaze Vaults, a major step forward in our cloud storage service’s technology stack. Currently Backblaze stores over 150 petabytes of data and has recovered over 10 billion files for customers of our cloud backup….

150 Petabytes of Cloud Storage

By | March 10th, 2015

Backblaze now has 150 Petabytes of customer data safely stored by our cloud backup service and waiting to be restored by our customers when requested. This customer data is stored encrypted on 980 Backblaze Storage Pods which contain 44,100 data hard drives of sizes ranging from 2 to 6 Terabytes. Each week, new Storage Pods….

Storage Pod 4.5 – Tweaking a Proven Design

By | March 5th, 2015

To get the latest updates and informationon ALL of the Storage Pod versions. Click Here. It has been nearly a year since we published an update to our Storage Pod design. Over the last few months we have been deploying Storage Pod 4.5, which is known internally as Storage Pod Classic. The reason for the….