Kamal R. Prasad <kamalp@acm.org> wrote:
> If I have just one volume group & 1 hard disk and several logical
> volumes, do I need to add PPs to the logical volume being changed in
> size?

When you extend the logical volume, new PPs are allocated to it.
This happens automatically if you use extendlv.
If you want control over which PPs are allocated, you will have to create
a map file and use extendlv -m.

Yours,
Laurenz Albe