1.新增加一个磁盘并初始化

# vxdisk list

vxdisksetup -i 3pardata0_22

2.将新增加的磁盘合并到磁盘组中

# vxdg -g testdg01 adddisk test_data02=3pardata0_22

3.查看当前组里新增卷或者原有卷可以扩充的最大尺寸

# vxassist -g testdg01 maxsize layout=nostripe （Maxsize is used to find the size to which a new volume can be grown to）

vxassist -g testdg01 maxgrow testvol01 　　（maxgrow is to find the size to which an existing volume can be grown to）

4.查看当前卷的大小

# /opt/VRTSsfmh/bin/vxlist testvol
#执行上述命令后报错
VxVM DCLI vxlist ERROR V-50-49971-158 Authentication or communication could not be established with the server.

vxdclid is not setup.
Run /opt/VRTSsfmh/adm/dclisetup.sh as root.
You have mail in /var/spool/mail/root

根据他的提示，执行命令

/opt/VRTSsfmh/adm/dclisetup.sh

再次查看

/opt/VRTSsfmh/bin/vxlist testvol

5.扩充卷

# vxassist -g testdg01 growto testvol01 153529m

6.扩充文件系统

# /opt/VRTSsfmh/bin/vxlist testvol

vxresize -g testdg01 testvol01 153529m

参考：https://www.thegeekdiary.com/vxvm-tutorials-volume-resize-with-vxassist-and-vxresize/

vxdisksetup -i 3pardata1_25
vxdg -g oradg11 adddisk oradg1101=3pardata1_25
vxassist -g oradg11 maxgrow voldata11
Volume voldata11 can be extended by 419231744 to: 2516176896 (1228602Mb)
vxassist -g oradg11 growto voldata11 2516176896
vxresize -g oradg11 voldata11 2516176896