So in real world terms, the LTO is $4/TB compared to $18.33/TB for the HD. So realistically, no one talks about raw capacity on LTO because the compression is part of the tape spec and you expect to get 15TB on a drive, compared to actually getting 6TB on the hard drive. And pretty much no compression meets the hardware compression that LTO does, it's about the best that there is. You want to compress what is going onto it, you have to buy and deal with that separately. That HD is raw and that's all that you get. And that's enterprise LTO vs "cheapest consumer item on Amazon" HDD. So in raw capacity, the LTO is roughly half the cost of a HD. What do you think about their Assumptions page? I think most companies will make do with what they have and will not experience these assumed costs. My biggest issues are with Annual personnel cost and Network Cost. Network Cost (monthly) $400 Incremental cost to upgrade network speeds (symmetric 500 Mbps minimum) Wage growthĒ%Ěnnual wage increase for LTO personĬost of Storage $0.005Ĝost of storage per month per GB (Backblaze)ĭownload percentageđ0% Percentage of data downloaded each year, based on the total amount of dataĬost of Download $0.01Ĝost to download 1 GB of data Here's a piece of their "assumptions" page:Īnnual personnel cost $104,000Ěnnual salary + benefits, FTE who manages LTO system(s) - $50/hour Their calculator doesn t apply in the IT world I have worked in for more than 30 years. If their goal was to compare "Perfect" scenarios with "Perfect" business models with "Perfect" cost analysis, then I'll give them credit. I think their calculator is highly flawed for use in the real world of existing customer who already have some sort of backup in place. BUT the fact of the matter is, most companies will not.įor example, if a company is going to ask an EXISTING employee to manage those backups, they are not going to calculate the cost of labor for the backup in their decision, they are going to add that task to the existing workload of that employee and not change the compensation. I know people will say you have to include those costs, or you are not seeing the real price yes I know that. Or at least would never be included in many business decisions. They make some assumptions that just don't apply to many businesses.
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