1、# lsvg
rootvg
datavg
2、# lsvg datavg
VOLUME GROUP: datavg VG IDENTIFIER: 0000c71e0000d7000000011188028579
VG STATE: active PP SIZE: 256 megabyte(s)
VG PERMISSION: read/write TOTAL PPs: 1089 (278784 megabytes)
MAX LVs: 256 FREE PPs: 137 (35072 megabytes)
LVs: 7 USED PPs: 952 (243712 megabytes)
OPEN LVs: 7 QUORUM: 2
TOTAL PVs: 1 VG DESCRIPTORS: 2
STALE PVs: 0 STALE PPs: 0
ACTIVE PVs: 1 AUTO ON: yes
MAX PPs per VG: 32512
MAX PPs per PV: 2032 MAX PVs: 16
LTG size (Dynamic): 1024 kilobyte(s) AUTO SYNC: no
HOT SPARE: no BB POLICY: relocatable
检查FREE PPs 为137，PP SIZE为256M，大约剩余空间34.25G。
3、# lsvg -l datavg
datavg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
loglv00 jfs2log 1 1 1 open/syncd N/A
fslv00 jfs2 8 8 1 open/syncd /sapcd
fslv11 jfs2 240 240 1 open/syncd /oracle/DEV/sapdata1
fslv12 jfs2 240 240 1 open/syncd /oracle/DEV/sapdata2
fslv13 jfs2 280 280 1 open/syncd /oracle/DEV/sapdata3
fslv14 jfs2 180 180 1 open/syncd /oracle/DEV/sapdata4
fslv15 jfs2 3 3 1 open/syncd /oracle/DEV/sapbackup
4、# df -g
/dev/fslv13 70.00 11.12 85% 24 1% /oracle/DEV/sapdata3
/dev/fslv14 45.00 7.10 85% 18 1% /oracle/DEV/sapdata4
5、#smitty jfs2
选择 Change / Show Characteristics of an Enhanced Journaled File System
选择需要扩展的vg
Unit Size 512bytes +
Number of units [94371840]
修改上处94371840，填写新值此处为扩展后大小，不是扩展的大小。完毕