Volume group considerations

[khilari]

Well, in plain words u extend a volume group to get more space.
U add another disk to ur volume group and then u keep on adding them as u want more disk space.
Ur volume group first spans on some disks, then u want to mirror them in a disk array using xp512. So, the volume group is what disks belong to, they are referred to not by their names but by their volume group name. Like c1t2d9 and c1t2d7 belong to volume group vg02. And thats just the beginning of the story........