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Your comparison assumes that the average lifetime of a hard drive is 1 month. I sure hope that's not the case! Also, don't forget bandwidth charges if e.g. som
by mrshoe 15y ago
Your comparison assumes that the average lifetime of a hard drive is 1 month. I sure hope that's not the case!
Also, don't forget bandwidth charges if e.g. some of your s3 access does not come from ec2.
- ChuckMcM 15y agoOh it gets much worse if you assume that you replace your hard drives every 3 years (their warranty period) which would add a $1.94/month depreciation cost. You could add into the cost / GB of bandwidth to access the files, not as easy to factor into a TCO model in the personal use case.
- doty 15y agoIt gets better, not worse. At steady state you just account for the depreciation cost, though, right? So that's $1.94/TB/MO/Drive, or $0.0019/GB/MO/Drive or $0.01/GB/MO for 3-way redundancy.
- ChuckMcM 15y agoThe way I was accounting for it you have to replace the drive in 3 years, you have 3 drives. So you've got a cost of $210 that recurs every three years (purchasing the drives). If you distribute that cost across the 36 months that is a $5.83/month fixed cost (doesn't vary by storage usage because you have to replace the entire drive). Unlike Google which can amortize depreciation on a per-GB basis because they are spreading out the replacements amongst many thousands of drives, as an individual you're on the hook for your own drives regardless.
- AlisdairO 15y agoright, but the point being made was that the storage fee Google/S3 charge is not a one-time thing - it recurs monthly.