Last year, Cloud storage provider Backblaze published a study detailing the failure rates of the numerous hard drives they use in their data centre. This year, they’ve published a further report and, once again, there are some very interesting findings.
As part of their study, Backblaze analysed the failure rates of each individual model of hard drive they used in their data centre, provided at least 45 were being utilised so as to ensure an adequate cross section of each model was included in the study. As the company found last year, Seagate produced the least reliable hard drives.
The drive that was found to be the most likely to fail was Seagate’s 3TB Barracuda 7200.14 which was found to have an annual failure rate of 43.1%. The second least reliable drive also belonged to Seagate, with their 1.5TB Barracuda 7200.11 possessing an annual failure rate of 23.5%. Third was the company’s Barracuda LP 1.5TB drive with 9.5%.
Backblaze also discovered that higher capacity (4TBs and up) drives were significantly less likely to fail. Indeed, Seagate’s mass-storage drives faired significantly better than their 3TB and lower drives with the three that were involved in the study possessing annual failure rates of 2.6%, 1.1% and 0% respectively.
Following them having published this report on their blog, Backblaze are recommending consumers that are looking for advice on their next HDD purchase to opt for a 4TB HGST or Western Digital drive.
Unsurprisingly, Seagate have been quick to note that each of the drives analysed by Backblaze have been designed for consumers and are not suitable for as intensive an environment as that you’d find in a data centre.