Quantum has developed an even smaller 2.5-inch drive that will fit into a shirt pocket.
Some netbooks are stripped down with a very small hard drive.
You can store thousands of books on a very small hard drive.
It surely wouldn't pay to make a lot of small drives for a long distance.
On fast systems with small drives, is neither necessary nor desirable.
This might be inconvenient for people with small hard drives.
If you're going to use the computer primarily for word processing, a smaller hard drive is sufficient.
A vdev will have the same base capacity as the smallest drive in the group.
All of these products had a following during the era of small hard drives.
It also would boot the smaller drive, but not the larger one.