首先，将原LV上的内容做好备份；然后将该LV删除；接着创建一个大小符合要求的LV，再将原LV上的内容恢复进去。
删除一个LV
当需要删除一个LV时，键入 ：smit rmlv 输入欲去除的LV名字，回车并确认即可。
Remove a Logical Volume
Type or select values in entry fields.
Press Enter AFTER making all desired changes.
[Entry Fields]
LOGICAL VOLUME name [] +
F1=Help F2=Refresh F3=Cancel F4=List
Esc+5=Reset Esc+6=Command Esc+7=Edit Esc+8=Image
Esc+9=Shell Esc+0=Exit Enter=Do
Esc+3
lqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqk
Press Entex LOGICAL VOLUME name x
x x
x Move cursor to desired item and press Enter. Use arrow keys to scroll. x LOGICAL x x +
x [TOP] x
x uploadlg jfs 128 128 1 open/syncd /upload x
x loglv00 jfslog 1 1 1 open/syncd N/A x
x Ora_bin jfs 96 96 1 open/syncd /usr/ora x
x master1 jfs 1 1 1 closed/syncd N/A x
x ora_system_vg jfs 5 5 1 open/syncd N/A x
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x ora_temp_vg jfs 8 8 1 open/syncd N/A x
x ora_user_vg jfs 160 160 1 open/syncd N/A x
x ora_tools_vg jfs 1 1 1 open/syncd N/A x
x ora_rollback_vg jfs 5 5 1 open/syncd N/A x
x ora_redolog_1 jfs 1 1 1 closed/syncd N/A x
x ora_redolog_2 jfs 1 1 1 open/syncd N/A x
x ora_redolog_3 jfs 1 1 1 closed/syncd N/A x
x [MORE...49] x
x x
x F1=Help F2=Refresh F3=Cancel x
F1=Help x Esc+8=Image Esc+0=Exit Enter=Do x
Esc+5=Resex /=Find n=Find Next x
Esc+9=Shelmqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
选中要删除的LV，ENTER，ENTER。
第五章 RS6000 更换硬盘的过程
HDISK0和HDISK1做成MIRROR，是ROOTVG
#mirrorvg rootvg hdisk0 hdisk1
先做系统备份
tctl –f /dev/rmt0 rewind smitty mksysb
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查看HDISK0的S/N，P/N号等，在换盘的时候做对照
lscfg –vl hdisk0
#lscfg -vl hdisk0
DEVICE LOCATION DESCRIPTION
hdisk0 11-08-00-2,0 16 Bit LVD SCSI Disk Drive (36400 MB) Manufacturer................IBM
Machine Type and Model......IC35L036UCDY10-0 FRU Number..................00P3831 ROS Level and ID............53323154 Serial Number...............E3V59K0B EC Level....................H32224 Part Number.................08K0293
Device Specific.(Z0)........000003029F00013A Device Specific.(Z1)........07N4972 Device Specific.(Z2)........0068 Device Specific.(Z3)........02305 Device Specific.(Z4)........0001 Device Specific.(Z5)........22
Device Specific.(Z6)........********** 查看物理卷 lspv
查看逻辑卷组 lsvg
查看在用的逻辑卷组 lsvg –o
# lsvg -o orclvg rootvg #
查看所有硬盘（包括逻辑盘）的状态 # lsdev -Cc disk
hdisk0 Available 11-08-00-2,0 16 Bit LVD SCSI Disk Drive hdisk1 Available 11-08-00-4,0 16 Bit LVD SCSI Disk Drive #
查看7133磁盘柜硬盘状态
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lsdev –Cc pdisk
停HACMP
smitty clstop
使用lsvg –o 命令会看不到一些（应用）VG(1号机会接管)；使用 netstat –ir命令可以看到系统SVC地址会变成BOOT地址
把HDISK0从ROOTVG中不做MIRROW
unmirrorvg rootvg hdisk0 查看物理卷 lspv
这时HDISK0不在和HDISK1为MIRROR 把hdisk0从rootvg中去除 reducevg rootvg hdisk0
在HDISK1上创建boot image bosboot –ad hdisk1 改变启动设备的顺序
bootlist –m normal hdisk1 cd0 删除HDISK0 rmdev –l disk0 –d lspv
lscfg –vl hdisk0
以上2条命令不会显示HDISK0的相关信息
关机
shutdown –F
把2号机的外设机箱取出，更换硬盘。注意要标好各电缆的位置
开机
lspv
发现多出HDISK4，而我们需要的是HDISK0 删除HDISK4 rmdev –l hdisk4 –d cfgmgr lspv
发现多出HDISK0，HDISK4，可能是我前面删除HDISK0，没有做cfgmgr的原因
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删除HDISK4，HDISK0 rmdev –l hdisk4 –d rmdev –l hdisk0 –d cfgmgr lspv
好了，HDISK0出现了
把HDISK0加到ROOTVG中并做镜像
extendvg rootvg hdisk0 做MIRROR
mirrorvg –c 2 rootvg 查看PV lspv OK
在HDISK0,HDISK1上创建boot image bosboot –ad hdisk0 bosboot –ad hdisk1 改变启动设备的顺序
bootlist –m normal hdisk0,hdisk1 cd0
重启动2号机
shutdown –Fr
关闭1号机的HACMP
Smitty clstop
重启动1号机
shutdown –Fr
启动1号机的HACMP
smitty clstart
启动2号机的HACMP
smitty clstart
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