chvg -g是否可以在线识别VG的大小变化？
在AIX5.3中，如果对存储映射过来的LUN，在线扩容，那在系统AIX系统中，执行chvg -g 需要varyoffvg 吗？
或者什么情况下需要，什么情况下不需要，
是否都可以刷新扩容后的大小呢？
或者什么情况下需要，什么情况下不需要，
是否都可以刷新扩容后的大小呢？
36同行回答
-g
Will examine all the disks in the volume group to see if they have grown in size. If any disks have grown in size attempt to add additional PPs to PV. If necessary
will determine proper 1016 multiplier and conversion to big vg. Notes:
1 The user might be required to execute varyoffvg and then varyonvg on the volume group for LVM to see the size change on the disks.
2 There is no support for re-sizing while the volume group is activated in classic or enhanced concurrent mode.
3 There is no support for re-sizing for the rootvg.收起
Will examine all the disks in the volume group to see if they have grown in size. If any disks have grown in size attempt to add additional PPs to PV. If necessary
will determine proper 1016 multiplier and conversion to big vg. Notes:
1 The user might be required to execute varyoffvg and then varyonvg on the volume group for LVM to see the size change on the disks.
2 There is no support for re-sizing while the volume group is activated in classic or enhanced concurrent mode.
3 There is no support for re-sizing for the rootvg.收起
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