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If you thought that hard disk reliability and a distant galaxy could never be combined, you have a lot to learn. In honor of May 4, the cloud archiving company Backblaze released its results for the reliability of first-quarter devices, lightly sprinkled with various references to Star Wars. In the first quarter, the company monitored a total of 207,478 hard drives in its data centers. His report focuses on devices that are still in use at the time, and also looks at lifelong failure rates. As an example of how this will happen, he begins with a quote from Yoda from The Last Jedi: “The greatest teacher is failure.”

IN last study, the most durable “senior” device in the company’s storage modules is the 6TB Seagate ST6000DX000. Although the company has only 886 of them, none have failed in the last quarter. This is despite the fact that the average age of the device is over seven years. This is an impressive feat. In fact, it’s so good that Backblaze says, “The power is strong with this one.” The average age is 82.3 months. However, there are only 97 of those who hum in the pods. This model has suffered only one failure per year, which is atypical.

As for the “Padawan” discs, also known as the youth disc, there were also a few that stand out. Backblaze uses three models of high-capacity Western Digital devices in its modules, and none suffered damage in Q1. However, all of them were recently installed. There is a 14TB model that is a little over a year old, and two 16TB models that are almost brand new. This makes it difficult to adequately assess their reliability over time.

The company also announced a new method for visualizing reliability, shown above. It is called the Device Statistics Denial Square and divides all devices used into four quadrants. The discs in the upper right corner (I) are the first discs to be replaced when the time comes. They work for a long time and start to fail more often. The drives in the upper left corner (II) are the “winners”. They have been in the pods for a long time and have a low rejection rate. Moving to the third quadrant (III), these are the insolent young leaders who hope to one day move to quadrant II. They are probably already planning their runs in Kessel. Finally, Quadrant IV is the “deceivers.” These devices need to be replaced, but should be monitored as they show abnormal failure rates given their age.

In terms of annual failure rates (AFR), the company’s lifelong rating for all its devices is 1.39 percent. This number is only 0.01 percent lower than the figure for the last quarter. This is part of an ongoing trend with the company, which shows that modern hard drives are extremely reliable and similar to SSDs in this regard. A year ago, the life expectancy of the company was 1.49 percent, so the reliability of the drive is slowly improving over time. Although tense, Backblaze titled this part of the study, “You Misled Me One Last Time.”

Finally, if you need a device that is your only hope, and you just want to know which device is the most reliable from today’s manufacturers, here they are:

  • HGST: 12TB, model: HUH721212ALE600. AFR: 0.33%
  • Seagate: 12TB model: ST12000NM001G. AFR 0.63%
  • WDC: 14TB model: WUH721414ALE6L4. AFR: 0.33%
  • Toshiba: 16TB model: MG08ACA16TEY. AFR 0.70%

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