In my humble, you should always
use LVM, even on "your own" machine. And you'll thank me for it, the moment that your main drive does
begin to run out of space. (It's a very difficult situation to get out
The concept of LVM is extremely simple: a Linux "mount point," such as /usr
, now does not
correspond to "a single physical device." Rather, it refers to what's called a logical
the contents of that logical
volume may be spread over many different devices ... and you can safely shuffle things around without
rebooting the computer.
device is placed into a "storage pool," and that "storage pool" is associated with a logical volume. The operating system (except within the LVM layer itself) is not aware that it is accessing multiple physical devices when it accesses what it
perceives to be "a single, seamless, uninterrupted region of available storage."
It's simple (although the commands are strange), and it works very well. It becomes very simple to add storage, and to deal with a hardware device that is beginning to "(click, click ...) (click, click ...) (click, click ...)."