Logical volume will be defined pervolume group on one log; however, multiples might be defined.
为一个日志中的每个卷组定义逻辑卷；然而，可以定义多个逻辑卷。
2
The default value for scalable volume groups is the lowest value to accommodate 2040 physical partitions per physical volume.
可伸缩卷组的默认值为满足“每个物理卷最多容纳2040个物理分区”限制的最低值。
3
The default value for standard and big volume groups is the lowest value to remain within the limitation of 1016 physical partitions per physical volume.