As we know, a file system reserved some space for itself. So if we need a 1G file system, I have to create a disk partition a little bigger than 1G to contain this file system.
I found the size of a physical volume is a little smaller
than that of the disk partition where the PV related to. That because the PV might
to store some metadata that occupy some space. So does the
My problem is if I want a 1G size file system in a