Geeks are like goldfish.
I used to have my data strewn accross 5 drives. 4 in my home server, and the drive in my workstation. A while back, I decided to consolidate my machines, and I came to the conclusion it was time to start ousting the Maxtor drives I was using, and move towards some form of redundant storage.
One thing that worried me was that I didn’t want to buy a number of drives off the bat, and only use a small portion of the array I created, but I didn’t want to be stuck with an array of a certain size with no way to grow it aside from backing it up, destroying it and rebuilding it.
Enter slashdot. I saw a comment one day that gave me the building blocks for a growable array using LVM and Linuxs Software Raid.