I initially considered using hyperbackup, it was fantastic, until I read from someone who had a system failure half-way through a hyperbackup update and it destroyed the hyperbackup (can't recall if it was local or remote, presumably local).Īfter hearing that, I decided to leave my versioning to a third-party, most likely backblaze through Cloudsync. Guys, I'm going nuts planning my off-site backup.
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Whether a drive lasts 2 years or 10 years, it will fail.īackblaze's complete dataset is available to the public for free on its website.TL DR: Can I store my hyperbackup folder in backblaze B2 and, if necessary, recover from an older hyperbackup folder version? Relying on a single drive, HDD or SSD, as your sole source of data storage is a ticking time bomb. To that end, the analysis we did is being used to help prioritize which Backblaze vaults are upgraded," Klein told Ars.įor consumers considering a new HDD for personal use, (but not as part of a RAID array) Klein advised seeking a model they "believe fails the least."īut the difference between a 1 percent and 2 percent failure rate is moot if you don’t back up your stuff somewhere else. For economic reasons, we start with the smallest drives and then consider other details, such as failure rates, in the process. "We have a drive migration program to move from smaller drives to larger drives to improve storage density in a given Backblaze vault. Looking at detailed drive data like this gives Backblaze an intimate look into its storage environment so it can make any necessary adjustments. We are looking for unusual changes outside of what we would expect. One thing to remember is that we are looking at the change in failure rates over time, not the actual failure rates themselves. In this case, all of the models were similar in their increase in failure rates, but it could have been just as likely that they weren’t. That’s why once we identified the 8TB drives as the potential problem, we had to dig into the model-specific numbers. The executive told Ars that years of data collection like this have taught Backblaze that the failure rate of a given model does not predict the failure rate of other models of the same size or by the same manufacturer: And looking at the chart below, the lines for the 10 and 8TB models stand out: Advertisement By using the average age by drive size, we can, as appropriate, replace/upgrade all of the drives in a vault at once.Īfter eliminating drives that Backblaze considered young (under 5 years old), Backblaze came up with the below line graph, homing in on quarterly AFRs for its 4, 6, 8, and 10TB HDDs. Then, a year from now, we’d do it again, and the year after that, etc. If we grouped the drives strictly by age and wanted to replace just the oldest drives in a given Backblaze vault, we would only replace those drives in the vault that met the old age criteria, not all the drives. This is because, as Klein explained to Ars:Ī Backblaze storage vault consists of 1,200 drives of the same size, with 60 drives in 20 storage servers. So, Klein started digging further by grouping the drives by capacity. Since quarterly AFR numbers are "volatile," Klein told Ars Technica, Backblaze further evaluates both quarter-to-quarter and lifetime trends "to see if what happened was an anomaly or something more." Of course, that AFR increase alone isn't enough to warrant any panic. Backblaze's Q1 dataset examined 237,278 HDDs across 30 models. One of the biggest revelations from examining the drives from April 1, 2023, through June 30, 2023, was an increase in AFR from Q1 2023 (1.54 percent) to Q2 2023 ( 2.28 percent).
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