3 ms·
Not just the physical space, but also the power and cooling and serving requirements might tip the balance in favour of a higher upfront cost, but lower lifetim
by timc3 12y ago
Not just the physical space, but also the power and cooling and serving requirements might tip the balance in favour of a higher upfront cost, but lower lifetime cost.
- lucb1e 12y agoThey mentioned power and that's a flat fee for them, so I didn't mention it.
- brianwski 12y agoBrianW 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.