4 ms·

Why do they buy such weird proportions of each type of harddrive? Do they just use anything they can get their hands on? If the purpose was actually to test dri

• andrewbinstock 10y ago
  Drive failure rates can be computed across different batch sizes, provide the batches are big enough to provide meaningful numbers. There's no need to have the batches be exactly the same size to get useful and accurate data.
  • izzydata 10y ago
    Sure, but a drive count of 45 is not very reliable.
    • basch 10y ago
      a pod was 45 drives, so everything they do was in pod units. they would want at lest 45-90 of a drive to have a complete set. pods are 60 drives per unit now.
• wcfields 10y ago
  They typically purchase the best $ per MB. Even "shucking" external hard drives bought at Costco after Thailand experienced a flood that took offline several hard drive manufacturing plants. [1] [1] https://www.backblaze.com/blog/backblaze_drive_farming/ https://www.backblaze.com/blog/backblaze_drive_farming/