No, I really don't. I know what I pay for servers and hard drives (which are rare purchases), and monthly colocation fees, but not really sure how to derive a per-byte cost from that.
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I mean you know the costs of the disks themselves, right? Do you have an expected lifetime you amortize that fixed cost over the lifetime especially for back ups and remote sites etc.
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The expected lifetime is the missing part of the equation. I do all my own backups so it's all just a question of "how long will these boxes of disks last for"
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2 to 4 years tops. You back them up to other disks, which costs time and bandwidth and disks
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Right, each byte stored equals a byte backed up (there are two backups, and the backups compress to about half the size of the original). The bandwidth for backups is within the same rack so not a factor.
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Are the machines RAIDed or anything like that?
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If you just take S3 pricing, 100gb is $2.3 a month. You’re going to be plus or minus a multiple of that. You probably pay less, unless a disk fails in an inconvenient way and then you have to show up at the facility etc.
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so the 500 gig users cost you $12 a month more or less
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Thanks, that's a useful way to think about it!
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some other ways to think about it: if a user was going to store 8tb you would give them their own disk. what would that cost? if they were going to store 150tb, you would have to dupe the entire infrastructure. what would that cost?
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Yeah, those are great. You should really try your hand at a bookmarking site sometime. You have a good head for these things!
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this is how rumors get started
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