01-22-2004
Hi,
A physical disk is a single disk... a physical volume is what defines a group of physical disks ( it can be only one disk, but you can add more ), like in a RAID device...
The lspv will show you information about a physical volume on a volume group ( a volume group can be anything [ we're talking sbout disks ] that is grouped to look like one ).
It's not difficult, just learn the right terms...
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LEARN ABOUT HPUX
pvremove
pvremove(1M) pvremove(1M)
NAME
pvremove - remove LVM data structure from a physical volume
SYNOPSIS
DESCRIPTION
The command clears the LVM data structure on a disk, so that it is no longer an LVM physical volume. The device may then be used by the
file system or by other volume managers.
The operation is denied if pv_path is assigned to a volume group. The command only clears the LVM data structure on a disk if the disk
does not belong to a volume group. This avoids accidentally removing a valid physical volume under a volume group. If the physical volume
to be removed belongs to a volume group, use the command to first remove the volume group associated with the physical volume.
Arguments
recognizes the following arguments:
pv_path The character (raw) device path name of a physical volume.
EXTERNAL INFLUENCES
Environment Variables
determines the language in which messages are displayed.
If is not specified or is null, it defaults to "C" (see lang(5)).
If any internationalization variable contains an invalid setting, all internationalization variables default to "C" (see environ(5)).
EXAMPLES
Remove LVM data structure on the physical volume
SEE ALSO
lvremove(1M), vgremove(1M), intro(7), lvm(7).
pvremove(1M)