Yev from Backblaze here -> That's a factor of time and power! The 16TB drives consume more power so that's part of the calculation when we swap from the 4TBs, b

Yev from Backblaze here -> That's a factor of time and power! The 16TB drives consume more power so that's part of the calculation when we swap from the 4TBs, but we are monitoring them b/c we certainly want to avoid cluster failures and have what we call "rolling migration" projects going on all the time where we perpetually migration hard drives and hardware based on durability projections, power balancing, physical capacity, etc...