＃lsvg -p VGNAME
# lsvg -p rootvg rootvg:
PV_NAME PV STATE TOTAL PPs FREE PPs FREE DISTRIBUTION hdisk0 active 542 141 00..00..00..32..109 # lsvg rootvg
VOLUME GROUP: rootvg VG IDENTIFIER: 000cd60d00004c00000000f4520a36a1
VG STATE: active PP SIZE: 64 megabyte(s)
VG PERMISSION: read/write TOTAL PPs: 542 (34688 megabytes)
MAX LVs: 256 FREE PPs: 141 (9024 megabytes)
LVs: 30 USED PPs: 401 (25664 megabytes)
OPEN LVs: 9 QUORUM: 2 TOTAL PVs: 1 VG DESCRIPTORS: 2 STALE PVs: 0 STALE PPs: 0 ACTIVE PVs: 1 AUTO ON: yes MAX PPs per PV: 1016 MAX PVs: 32 LTG size: 128 kilobyte(s) AUTO SYNC: no HOT SPARE: no #
(4) 当检查有关卷组的逻辑卷信息时，运行命令： ＃lsvg -l VGNAME
# lsvg -l rootvg rootvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
hd5 boot 1 1 1 closed/syncd N/A hd6 paging 32 32 1 open/syncd N/A hd8 jfslog 1 1 1 open/syncd N/A hd4 jfs 2 2 1 open/syncd / hd2 jfs 11 11 1 open/syncd /usr hd9var jfs 1 1 1 open/syncd /var hd3 jfs 1 1 1 open/syncd /tmp hd1 jfs 1 1 1 open/syncd /home hd10opt jfs 1 1 1 open/syncd /opt
sybase jfs 64 64 1 open/syncd /usr/sybase SYBMaster jfs 2 2 1 closed/syncd N/A SYBTEMPDB jfs 16 16 1 closed/syncd N/A SYBDATADEV jfs 64 64 1 closed/syncd N/A SYBV6Data jfs 32 32 1 closed/syncd N/A SYBV6Log jfs 7 7 1 closed/syncd N/A
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ora_big5_sys jfs 5 5 1 closed/syncd N/A ora_big5_temp jfs 8 8 1 closed/syncd N/A ora_big5_user jfs 8 8 1 closed/syncd N/A ora_big5_tools jfs 1 1 1 closed/syncd N/A ora_big5_rlbk jfs 5 5 1 closed/syncd N/A ora_big5_redo1 jfs 1 1 1 closed/syncd N/A ora_big5_redo2 jfs 1 1 1 closed/syncd N/A ora_big5_redo3 jfs 1 1 1 closed/syncd N/A ora_big5_ctrl1 jfs 1 1 1 closed/syncd N/A ora_big5_ctrl2 jfs 1 1 1 closed/syncd N/A ora_big5_ctrl3 jfs 1 1 1 closed/syncd N/A ora_big5_drsys jfs 1 1 1 closed/syncd N/A ora_big5_xdb jfs 1 1 1 closed/syncd N/A ora_big5_index jfs 2 2 1 closed/syncd N/A sybase_lv jfs 128 128 1 closed/syncd N/A #
(5) varyonvg / varyoffvg
varyonvg VGNAME : 使VG可用 varyoffvg VGNAME : 使VG不可用 (6) importvg / exportvg
有时用户可能需要将一个VG由一个系统移到另一个系统中，以便另一个系统的用户能够访问该VG上的LV及文件系统。为达到此目的，需要：
1． 在原系统中执行：exportvg VGNAME 2． 在目标系统中执行：importvg VGNAME PVNAME (注：在HACMP的配置过程中，不一定需要将原VG作export。) 用户可以通过 smitty chvg 实现对VG属性的各种修改。
4.4 LV的管理
增加一个LV
超级用户在命令行下键入：smit mklv 系统将出现如下画面：
Add a Logical Volume
Type or select a value for the entry field.
Press Enter AFTER making all desired changes.
[Entry Fields]
* VOLUME GROUP name []
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Esc+1=Help Esc+2=Refresh Esc+3=Cancel Esc+4=List Esc+5=Reset Esc+6=Command Esc+7=Edit Esc+8=Image Esc+9=Shell Esc+0=Exit Enter=Do
输入需增加的LV 所在的VG 名。这个域是必须输入的，可以用ESC+4或F4 键列出可用的卷组进行选择，随后屏幕将出现：
Add a logical Volume
Type or Select values in entry fields.
Press Enter AFTER making all desired chaueges. [TOP] [Entry Fields] Logical Volume NAME [tmcs] * VOLUME GROUP name extendug * number of Logical Partitions [68] # PHYSICAL VOLUME names [] + Logical Volume TYPE [jfs] POSITION on Physical Volume outer-middle + RANGE of physical volumes minimum MAXIMUM NUMBER of PHYSICAL VOLUMES to use for [] # allocation
Number of COPIES of each logical partition 1 + Mirror Write Comistancy? Yes + Allocate each Logical partition copy on a Yes + SEPARATE phyical Volume? RELOCATE the logical volume during reorgaritation? Yes + Logical volume LABEL [ ] MAXIMUM NUMBER OF LOGICAL PARTITIONS [ 128 ]
其中，做单镜像，“Number of Copies of Logical partition”值为2，做双镜像，此值为3，为1时，表示不需要做镜像；当使用的空间多于128个分区时应修改“Maximum Number of logical partition”;其他参数一般不用修改。
修改LV的属性
当要对一个逻辑卷（LV）作修改时，输入命令smit chlv Change a Logical Volume
Move cursor to desired item and press Enter.
Change a Logical Volume Rename a Logical Volume
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Esc+1=Help Esc+2=Refresh Esc+3=Cancel Esc+8=Image Esc+9=Shell Esc+0=Exit Enter=Do
移动光标修改相应的域，例子中蓝色，后ENTER。如下所示: Change a Logical Volume
Type or select a value for the entry field.
Press Enter AFTER making all desired changes.
[Entry Fields]
* LOGICAL VOLUME name [] Esc+1=Help Esc+2=Refresh Esc+3=Cancel Esc+4=List Esc+5=Reset Esc+6=Command Esc+7=Edit Esc+8=Image Esc+9=Shell Esc+0=Exit Enter=Do 在* LOGICAL VOLUME name 后的方括号内输入LV名，或选中* LOGICAL VOLUME name ，按下Eac+4，出现LV列表，如下:
Change a Logical Volume
Ty+--------------------------------------------------------------------------+
Pr| LOGICAL VOLUME name |
| |
| Move cursor to desired item and press Enter. Use arrow keys to scroll. | * | |
| [TOP] |
| uploadlg jfs 128 128 1 open/syncd /upload | | loglv00 jfslog 1 1 1 open/syncd N/A | | Ora_bin jfs 96 96 1 open/syncd /usr/ora | | master1 jfs 1 1 1 closed/syncd N/A | | ora_system_vg jfs 5 5 1 open/syncd N/A | | ora_temp_vg jfs 8 8 1 open/syncd N/A | | ora_user_vg jfs 160 160 1 open/syncd N/A | | ora_tools_vg jfs 1 1 1 open/syncd N/A | | ora_rollback_vg jfs 5 5 1 open/syncd N/A | | ora_redolog_1 jfs 1 1 1 closed/syncd N/A | | ora_redolog_2 jfs 1 1 1 open/syncd N/A |
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| |
[MORE...50]
| |
| Esc+1=Help Esc+2=Refresh Esc+3=Cancel |
Es| Esc+8=Image Esc+0=Exit Enter=Do |
Es| /=Find n=Find Next | Es+--------------------------------------------------------------------------+ 选中要修改的LV，ENTER
[TOP] [Entry Fields] * Logical volume NAME jfs 1 1 1 sybase_lv
Logical volume TYPE [jfs] +
POSITION on physical volume middle +
RANGE of physical volumes minimum + #
MAXIMUM NUMBER of PHYSICAL VOLUMES [32]
to use for allocation
Allocate each logical partition copy yes + on a SEPARATE physical volume?
RELOCATE the logical volume during yes +
reorganization?
Logical volume LABEL [None]
MAXIMUM NUMBER of LOGICAL PARTITIONS [512] #
SCHEDULING POLICY for reading/writing parallel +
logical partition copies [MORE...4]
c+1=Help Esc+2=Refresh Esc+3=Cancel Esc+4=List Esc+5=Reset Esc+6=Command Esc+7=Edit Esc+8=Image Esc+9=Shell Esc+0=Exit Enter=Do 各项参数可修改。
注意：在AIX系统中，LV空间的大小只可增大，不可减小，因此在作LV的增加时应小心操作。但如果一个用户定义的LV空间确实过大，需要缩小时，我们可以采用下面的办法来解决这个问题。
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