I am talking here about home users or very small businesses & HDDS under 500GBs. The benefit that I see in having many small hard drives for backup is 2 fold: 1- you protect against malicious code by having many of the drives powered off at any given time. 2- you protect against hard drive failure because you have your risk more spread out. So, why aren't small drives more popular? Is there something about larger drives that I am missing? For example, maybe a lot of the ones that were manufactured 5 years ago are in the 2nd half of their life, and there is no way to justify manufacturing more of them. Are there efficient ways to protect against malicious code on a large drive, such as having part of a drive on a file system that your current operating system can't write to? I understand that small drives can take up a lot of space, and also are fairly heavy. But, this shouldn't be too much of a concern for these small time users.