AIX服务器磁盘操作命令汇总一、rootvg的磁盘操作先用cfgmgr –v找到新加的硬盘。
# lspvhdisk0 00092204880d7036 rootvghdisk1 none none显示结果中，hdisk1是一个新硬盘，没有分配pvid，可以用下面的命令为hdisk配置成一个物理卷：# chdev –l hdisk1 –a pv=yes该命令就给磁盘hidsk1分配一个唯一的pvid，并将pvid写在该磁盘的引导记录中。
如果该磁盘已经有了pvid，则此磁盘就配置成了物理卷。
该方法适用于配置之前不能重新启动系统，并且用cfgmgr检测不到的磁盘，此方法需要用户知道硬盘的具体信息。
知道硬盘的类型（Type）,硬盘的连接的子类型（Subclass）,硬盘连接的父设备名(Parent Name )和硬盘的逻辑位置（Location Code）一搬使用mkdev配置该磁盘，格式如下：# mkdev –c disk –s Subclass –t Type –p ParentName –w Location Code–a pv=yes例：增加一个679M的硬盘，连接到scsi3父设备上，他的scsi id是6，逻辑单元号是0，# mkdev –c disk –s scsi –t 670mb –p scsi3 –w 6,0 –a pv=yes或者调用smit mkdev来配置1.1.将一块新盘添加到rootvg当中#smit extendvgForce the creation of a volume group? no* VOLUME GROUP name [rootvg]* PHYSICAL VOLUME names [hdisk1]#lspvhdisk0 000cf05c5941a1f6 rootvg activehdisk1 000cf05ca13d72ec rootvg active#lsvg rootvgVOLUME GROUP: rootvg VG IDENTIFIER: 000cf05c00004c000000011bc16b24daVG STATE: active PP SIZE: 32 megabyte(s)VG PERMISSION: read/write TOTAL PPs: 1088 (34816 megabytes) MAX LVs: 256 FREE PPs: 946 (30272 megabytes) LVs: 10 USED PPs: 142 (4544 megabytes)ACTIVE PVs: 2 AUTO ON: yes......................... 注意TOTAL PPs、ACTIVE PVs项1.2.在该新添加盘当中分出一个LV，并将其挂载到系统当中，确认其可用性#smit mklvLogical volume NAME [ora_data]* VOLUME GROUP name rootvg* Number of LOGICAL PARTITIONS [30] PHYSICAL VOLUME names [hdisk1]Logical volume TYPE [jfs2].................................. 注意MAXIMUM NUMBER of LOGICAL PARTITIONS项的值#lsvg -l rootvg.....................................loglv01 jfs2log 1 1 1 open/syncd N/Aora_data jfs2 30 30 1 closed/syncd N/A#lslv ora_dataLOGICAL VOLUME: ora_data VOLUME GROUP: rootvgLV IDENTIFIER: 000cf05c00004c000000011bc16b24da.11 PERMISSION: read/writeVG STATE: active/complete LV STATE: closed/syncdTYPE: jfs2 WRITE VERIFY: offMAX LPs: 512 PP SIZE: 32 megabyte(s).....................................#smit crfsAdd an Enhanced Journaled File System->Add an Enhanced Journaled File System on a Previously Defined LogicalVolume->* LOGICAL VOLUME name ora_data* MOUNT POINT [/ora_data].................................#mount /ora_data#df -g1.3.扩大该LV的空间、镜像该LV，并更改其所在文件系统大小#lslv ora_data...............................MAX LPs: 512 PP SIZE: 32 megabyte(s) COPIES: 1 SCHED POLICY: parallelLPs: 30 PPs: 30.......................................#smit extendlv* LOGICAL VOLUME name ora_data* Number of ADDITIONAL logical partitions [+10]PHYSICAL VOLUME names [hdisk1]...................................#lslv ora_dataMAX LPs: 512 PP SIZE: 32 megabyte(s)COPIES: 1 SCHED POLICY: parallelLPs: 40 PPs: 40....................................#smit mklvcopy* LOGICAL VOLUME name ora_data* NEW TOTAL number of logical partition copies 2PHYSICAL VOLUME names [hdisk0]......................................#lslv ora_dataMAX LPs: 512 PP SIZE: 32 megabyte(s)COPIES: 2 SCHED POLICY: parallelLPs: 40 PPs: 80........................................#df -g /dev/ora_data/dev/ora_data 1.44 1.44 1% 4 1% /ora_data#smit chfs Change / Show Characteristics of an Enhanced Journaled File System->File system name /ora_dataNEW mount point [/ora_data]SIZE of file systemUnit Size 512bytesNumber of units [5966080]........................................#df -g /dev/ora_data/dev/ora_data 2.41 2.41 1% 4 1% /ora_data1.4.删除镜像、卸载该LV并将其从硬盘中删除#smit rmlvcopy* LOGICAL VOLUME name ora_data* NEW maximum number of logical partition copies 1...........................................#lslv ora_dataMAX LPs: 512 PP SIZE: 32 megabyte(s)COPIES: 1 SCHED POLICY: parallelLPs: 77 PPs: 77....................................#umount /ora_data#smit rmlvLOGICAL VOLUME name [ora_data]#lsvg -l rootvgloglv01 jfs2log 1 1 1 open/syncd N/A..........................................1.5.从rootvg中移除该磁盘#smit reducevgRemove a Physical Volume from a Volume Group->* VOLUME GROUP name rootvg* PHYSICAL VOLUME names [hdisk1]....................................#lspvhdisk0 000cf05c5941a1f6 rootvg activehdisk1 000cf05ca13d72ec None1.6.用新添加的PV mirror rootvg#smit extendvg#smit mirrorvgVOLUME GROUP name rootvgMirror sync mode [Foreground]PHYSICAL VOLUME names [hdisk1] Number of COPIES of each logical partition 21.7.删除rootvg mirror，退出rootvg#smit unmirrorvg#smit reducevg二、非rootvg的磁盘操作2.1.将一块新磁盘添加到系统中并新建为一个独立VG#smit mkvgAdd an Original Volume Group->VOLUME GROUP name [datavg]Physical partition SIZE in megabytes 8* PHYSICAL VOLUME names [hdisk1]..................................#lspvhdisk0 000cf05c5941a1f6 rootvg activehdisk1 000cf05ca13d72ec datavg active2.2.在该磁盘中分出两个LV，并将其挂载到系统当中，确认其可用性#smit mklv 注意MAXIMUM NUMBER of LOGICAL PARTITIONS项的值#lsvg -l datavgLV NAME TYPE LPs PPs PVs LV STATE MOUNT POINTdream jfs2 300 300 1 closed/syncd N/Aibm jfs2 500 500 1 closed/syncd N/A#smit crfs #lsvg -l datavgLV NAME TYPE LPs PPs PVs LV STATE MOUNT POINTdream jfs2 300 300 1 closed/syncd /dreamibm jfs2 500 500 1 closed/syncd /ibm#mount /ibm#mount /dream#df -g/dev/ibm 3.91 3.91 1% 4 1% /ibm/dev/dream 2.34 2.34 1% 4 1% /dream2.3.扩大、镜像LV，并更改其所在文件系统大小#smit extendlv* LOGICAL VOLUME name dream* Number of ADDITIONAL logical partitions [+300]PHYSICAL VOLUME names [hdisk1]POSITION on physical volume middleRANGE of physical volumes minimumMAXIMUM NUMBER of PHYSICAL VOLUMES [10]to use for allocationAllocate each logical partition copy no注意Allocate each logical partition copy项，选no#lsvg -l datavgLV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT dream jfs2 400 400 1 open/syncd /dreamibm jfs2 800 800 1 open/syncd /ibm#smit mklvcopy#lslv ibm #lslv dream #df -g/dev/dream 2.34 2.34 1% 4 1% /dream/dev/ibm 3.91 3.91 1% 4 1% /ibm#smit crfs#df -g/dev/dream 1.39 1.39 1% 4 1% /dream/dev/ibm 4.39 4.39 1% 4 1% /ibm2.4.删除镜像、卸载并删除两个LV#smit rmlvcopy#lslv dream #lslv ibm#umount /ibm #umount /dream#smit rmlv 注意在删除LV之前，请确认文件系统已从系统中卸载2.5.从系统中删除VG，使其成为一个全新的磁盘#smit reducevg#lspvhdisk0 000cf05c5941a1f6 rootvg active hdisk1 000cf05ca13d72ec None1.将新磁盘添加到系统当中，并确认其处于可用状态#chdev -l hdisk1 -a pv=yes三、AIX系统磁盘更换办法3.1 单rootvg ,单datavg , datavg中一块盘更换注意：在更换硬盘之前，必须做好数据的备份工作。