01-10-2014
pvs is good for showing space remaining in volumes across physical vols that are part of the logical vols.
When you create a volume group, it's from a pool of storage. In your case, the pool contains a single partition /dev/sde2 (at the time you posted anyhow). You'll practically never refer to /dev/sde2 again (there are cases, but generally only useful if you are creating volumes using whole drives rather than partitions).
Perhaps some good read here:
NTLUG | Articles / LVM browse
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