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I was thinking as one failure of a 100TB disk has a very different impact of 10 failures of 1TB disks. It'd give some idea on how much data is lost due failures

by alinde 8y ago

I was thinking as one failure of a 100TB disk has a very different impact of 10 failures of 1TB disks. It'd give some idea on how much data is lost due failures, no?

atYevP 8y ago
Yev from Backblaze here -> Not sure if you'd get that metric from that data. We use Reed-Solomon erasure coding (https://www.backblaze.com/blog/reed-solomon/ https://www.backblaze.com/blog/reed-solomon/) to make sure that data is "rebuilt" should we lose drives (which happens all the time).
deleted 8y ago
[deleted]
oliveshell 8y ago
I suppose, but there’s no such thing as a single HDD that stores 100TB. The biggest you can get currently are (I believe) 14TB helium-filled drives.
- jsgo 8y ago
  My guess is they meant 10TB as it would be a more "equal" comparison: 1 10TB drive 10 1TB drives
  - oliveshell 8y ago
    That makes way more sense. Didn’t think before posting!