Earlier quoted context omitted.
Note that a few dozen terabytes is also nothing. 12 TiB is about $800 on an SSD and about $250 on a HDD. Plus some overhead for the enclosure and redundancy, of course. It costs on the order of a day's pay for an engineer, at most. I don't excuse wanton waste of storage because it's easy for sloppy practices to balloon to massive confusion and inefficiency. But that discipline should be enforced by good engineering p…
This is such a uninformative comment. Business/Enterprise storage is far, far more expensive than a drive you pick up at Best Buy or Fry's.
There is absolutely no technical reason to provide all of your storage needs with a single quality of disks. You may do that to get some economies of scale, but if the impact is that high, you should rethink it. You can just as well have two different solutions, one with a huge amount of disk space, little redundancy and low performance, and one with a limited amount of space, plenty of redundancy and high performance.
And yes, I know that goes against every common ops procedure, because disks are so cheap. But the next thing you hear is always that disks are not cheap at all, and you really can't have it both ways.