You must remove a Physical Volume (PV) from a Volume Group (VG) containing one Logical
Volume (LV) without compromising data availability.
What must you do before using the vgreduce command, to remove the PV?
A.
Move allocated physical Extents (PE) from /dev/sdd to other physical volumes using the
pvmove command.
B.
Remove the /dev/sdd PV using the pvremove command.
C.
Resize the /dev/sdd PV to zero using the pvresize command.
D.
Move allocated physical Extents (PE) from /dev/sdd to other physical volumes by using the
1vvonvert – – replace command.
Explanation:
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Logical_Volume_Manager_Administration/VG_remove_PV.html
There you can find: “If the physical volume is still being used you will have to migrate the data to another physical volume using the pvmove command. Then use the vgreduce command to remove the physical volume: ”
Answer A is right!
A
A is correct see previous link
lvconvert = convert a logical volume from linear to mirror or snapshot
not B, not C