This gets itemized in your "Billing Web Page", so you can see how much storage cost, and separately how much the transactions costs. So it is in Backblaze's best interest to bill you all at once for any transactions and storage. We hide this from you for simplicity, the same way if you buy coffee in Starbucks for $10 they hide the fact that it cost Starbucks 30 cents to bill your credit card. Now, you have to understand that each time we issue a bill against your credit card, Backblaze has to "eat" about a 30 cent charge. Because the total was 2 TBytes at midnight every night for 15 days.ĮDIT: the above paragraph is 100% true. At the end of 30 days (after the first upload) your credit card will be charged $5. The totals are kept "live" throughout the day.Īnother example: you upload the 2 TBytes all within the first day, you store it for 15 days, then you delete all 2 TBytes. So if you upload 1 byte in the middle of the day and delete it 3 seconds later, you will owe 1 byte-hour for that file. Your bill is zero dollars, because ONLY THE TOTAL at midnight of every day matters.ĮDIT: the above paragraph was totally wrong and I feel bad. So take the very extreme example that at 10 minutes after London time you begin uploading 2 TBytes, get it fully uploaded 12 hours later, then delete all 2 TBytes by midnight. We only look at how much data you have stored with Backblaze at midnight London time (UTC/GMT time) once per day, we don't care what you stored at any point in the middle of the day. The one below is totally wrong.Ī little more explanation and inside information about that. Your credit card will get charged 30 days LATER (we call this "in arrears") for $10 all for the storage of the 2 TBytes, then you will get a bill once per month after that for $10 each month.ĮDIT: the above paragraph is 100% true. Let's take an easy example to start with: let's say you uploaded the 2 TBytes all within the same day and didn't touch the data at all after that (zero transactions outside of uploading which is free because we really want you to upload data). You know, now that you ask it isn't all that clear is it? I'm sitting here going "huh, we're so up in this all the time we didn't think to mention that". Short Over Simplified Answer: once per month.ĮDIT: I have since been corrected by the person who wrote the B2 billing code, and a some of my answer below was incorrect. So how is B2 billed? Monthly? One time charge for each I/O operation? Disclaimer: I work for Backblaze, but mostly on the Personal Backup product and not B2.
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