What is the purpose of the command vgextend?
A. Extend a volume group's footprint on disk.
B. Add physical volumes to an existing volume group.
C. Increase the number of days between scheduled error checking.
D. Create a volume group which uses all available space on disk.
題解
「vgextend」指令可以將實體捲軸(PV)加入到一個捲軸群組(VG)內，擴充它的空間。所以答案是選項B。