We use several different disk drive sizes as the table below shows, with over 60% of those drives being 12TB or 14TB in size.īefore diving into the data on failure rates, it’s worth spending a little time clarifying what exactly a failure rate means. Number of Hard DrivesĪs stated earlier, we currently have over 200,000 disk drives we manage and use for customer data storage. If you’re interested, we’ve compared the reliability of HDDs versus SSDs as it relates to these boot drives. A boot drive can be either an HDD or an SSD. Besides the obvious function of booting the server, we also use these drives to store log files recording system access and activities which are used for analytics and compliance purposes. Note that HGST is now part of Western Digital, but the drives themselves report as HGST drives so they are listed separately in the chart.Įach of the storage servers also uses a boot drive. The following chart breaks down our current drive count by manufacturer.
Hard disk led always on software#
The redundancy provided by the Backblave Vault software ensures the data is safe, while allowing us to use off-the-shelf drives from the three primary disk drive manufacturers: Seagate, Western Digital, and Toshiba. The hard drives we use to store customer data are standard 3.5 inch drives you can buy online or in stores. Twenty storage servers are grouped into a Backblaze Vault, which utilizes our own Reed-Solomon erasure coding algorithm to replicate and store customer data across the 20 servers in a Backblaze Vault. The storage servers consist of Storage Pods (our own homegrown storage servers) and storage servers from external manufacturers.
There are also a handful of storage servers which use only 45 hard drives.
Hard disk led always on plus#
Most of these drives are mounted in a storage server which accommodates 60 drives, plus a boot drive. When added together, we have over two exabytes of hard drive space under management. Drives range in size from 4TB to 18TB in size. How Drives Are Used at Backblazeīackblaze currently uses over 200,000 hard drives to store our customers’ data. So how long do drives last? Keep reading. Today, about 90% of the drives we own have lasted four years and 65% are living longer than six years. For example, in our original report we reported that 78% of the drives we purchased were living longer than four years. This gives us more data to review and lets us extend our projections. Today’s study includes data from over 200,000 disk drives, many of which have survived six years and longer. The initial drive life study was done with 25,000 disk drives and about four years of data. Since that time, we’ve gone to school on hard disk drive (HDD) and solid-state drive (SSD) failure rates. Nevertheless, we did present the data we had up to that point and we made a few of predictions. How long do disk drives last? We asked that question several years ago, and at the time the answer was: We didn’t know yet. Editor’s Note: This post has been updated since it was originally published in 2013 to provide the latest information and statistics.
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