BrianW from Backblaze here. Exactly. In rough numbers, 1 hard drive always takes the same power to spin up and to cool, regardless of how big of capacity it is. Also, going from 3 TByte drives up to 6 TByte drives means we have half as many hard drives (pods) to deploy every week and so we don't need to hire as many datacenter employees to deploy and maintain pods. Basically we have a little spreadsheet (it isn't complicated, but it has 10 line items on it) that tells us whether a certain price for a hard drive is a good deal or not in the 2 year timeframe, the 3 year timeframe, and the 4 year timeframe.
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BrianW from Backblaze here. Exactly. In rough numbers, 1 hard drive always takes the same power to spin up and to cool, regardless of how big of capacity it is. Also, going from 3 TByte drives up to 6 TByte drives means we have half as many hard drives (pods) to deploy every week and so we don't need to hire as many datacenter employees to deploy and maintain pods. Basically we have a little spreadsheet (it isn't complicated, but it has 10 line items on it) that tells us whether a certain price for a hard drive is a good deal or not in the 2 year timeframe, the 3 year timeframe, and the 4 year timeframe.