10 Billion Files Restored and Counting…

By | March 9th, 2015

10 billion files recovered
As an online backup provider, people pay us to backup their data so they can recover their files when needed. On March 2nd, a little after Noon Pacific Time, Backblaze reached a data recovery milestone. We restored our 10 billionth file. No alarms went off, no bells rang, no one sang the Backblaze jingle, 10 billion just happened, then 10 billion and one and then 10 billion and two and so on. In an instant 10 billion was here and gone. How fast, you ask? Let’s look at the statistics for 2015 so far:

Average Number of Files Restored

Backblaze Restore

So in the time it took you read this sentence hundreds of files were restored.

Hard Drive File Recovery

In reality, there are many files being restored at the same time. We currently have 22 restore servers, locked away in our data center, working day and night, 7 days a week, restoring files. Surely, they must get a break sometimes, you ask? Yes, some days of the week are busier than others, as you can see below:

Percentage of Restores Done Each Weekday

Backblaze Restores by Day of Week

Just like many of us, they get a little breather on the weekend. Perhaps when our customers do their restores, they use the office network, just sayin’.

We didn’t get to 10 billion files all at once, it took a while, years in fact. We restored our first file for a customer in June 2008, shortly after we introduced the Backblaze 1.0 Beta. It took nearly 4 years to get to 1 billion files restored. Once that happened, it has gotten a little crazy. The chart below shows how we progressed over the years up through 10 billion files today.
Files Restored Over TimeProjecting forward we anticipate restoring our 100 billionth file sometime in late 2020. I predict October 27th, but I could be off by a year or two either way.

Recovering Files
Backblaze customers can restore one file, a group of files or all their data, anytime they wish, with 99.1% of all restores being done by downloading the files using a web browser or the Backblaze Downloader application. On average each restore consists of 33,164 files, but interestingly restoring a single file represents 21% of all the restores being done as shown below.

Number of Files Recovered Each Restore

Files Restored

Yes, each month there are a number of customers that download a million files or more in a single restore. What’s the largest number of files we’ve restored at one time? We believe the current record is 18,006,871 files. Please note, this is not meant to be a challenge to those of you contemplating large restores.

By the way, it’s probably a good idea to break up a large restore into smaller parts and use the Backblaze Downloader. This will make for a much better download experience. Of course, you can always opt to purchase a Flash Drive or USB Hard Drive from us. Once your restore is ready, we’ll load your data on the drive and ship it to you next day at no extra charge. It’s convenient, fast, and you get to keep the drive.

Well I just checked, we’re up to 10,124,152,571 files restored and counting, but that’s what you pay us for. Restore away, and thanks.


Andy Klein

Andy Klein

Director of Product Marketing at Backblaze
Andy has 20+ years experience in technology marketing. He has shared his expertise in computer security and data backup at the Federal Trade Commission, Rootstech, RSA and over 100 other events. His current passion is to get everyone to back up their data before it's too late.
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