Vmware Centos虛擬機擴展空間

1、現(xiàn)狀[root@slave4~]#df-hFilesystemSizeUsedAvailUse%Mountedon/dev/mapper/vg_cdh235-lv_root50G43G4.6G91%/tmpfs7.2G96K7.2G1%/dev/shm/dev/sda1477M40M412M9%/boot/dev/mapper/vg_cdh235-lv_home733G70M695G1%/home2、[root@slave4~]#fdisk-lDisk/dev/sda:859.0GB,858993459200bytes255heads,63sectors/track,104433cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x0002a307DeviceBoot StartEndBlocksIdSystem/dev/sda1 *164512000 83 LinuxPartition1doesnotendoncylinderboundary./dev/sda264 104434 838347776 8e LinuxLVMDisk/dev/mapper/vg_cdh235-lv_root:53.7GB,53687091200bytes255heads,63sectors/track,6527cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x00000000Disk/dev/mapper/vg_cdh235-lv_swap:5947MB,5947523072bytes255heads,63sectors/track,723cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x00000000Disk/dev/mapper/vg_cdh235-lv_home:798.8GB,798830362624bytes255heads,63sectors/track,97118cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x000000003、通過vmware增加一個新的硬盤，空間200G4、重啟虛擬機，然后：[root@slave4~]#fdisk-lDisk/dev/sda:859.0GB,858993459200bytes255heads,63sectors/track,104433cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x0002a307DeviceBoot StartEndBlocksIdSystem/dev/sda1 *164512000 83 LinuxPartition1doesnotendoncylinderboundary./dev/sda264 104434 838347776 8e LinuxLVMDisk/dev/sdb:214.7GB,214748364800bytes255heads,63sectors/track,26108cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x00000000Disk/dev/mapper/vg_cdh235-lv_root:53.7GB,53687091200bytes255heads,63sectors/track,6527cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x00000000Disk/dev/mapper/vg_cdh235-lv_swap:5947MB,5947523072bytes255heads,63sectors/track,723cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x00000000Disk/dev/mapper/vg_cdh235-lv_home:798.8GB,798830362624bytes255heads,63sectors/track,97118cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x000000005、對新增加的硬盤進行分區(qū)，格式化[root@slave4~]#fdisk/dev/sdbDevicecontainsneitheravalidDOSpartitiontable,norSun,SGIorOSFdisklabelBuildinganewDOSdisklabelwithdiskidentifier0x8ebdd174.Changeswillremaininmemoryonly,untilyoudecidetowritethem.Afterthat,ofcourse,thepreviouscontentwon'tberecoverable.Warning:invalidflag0x0000ofpartitiontable4willbecorrectedbyw(rite)WARNING:DOS-compatiblemodeisdeprecated.It'sstronglyrecommendedtoswitchoffthemode(command'c')andchangedisplayunitstosectors(command'u').Command(mforhelp):nCommandactioneextendedpprimarypartition(1-4)pPartitionnumber(1-4):1Firstcylinder(1-26108,default1):Usingdefaultvalue1Lastcylinder,+cylindersor+size{K,M,G}(1-26108,default26108):Usingdefaultvalue26108Command(mforhelp):tSelectedpartition1Hexcode(typeLtolistcodes):8eChangedsystemtypeofpartition1to8e(LinuxLVM)Command(mforhelp):wThepartitiontablehasbeenaltered!Callingioctl()tore-readpartitiontable.Syncingdisks.6、新的分區(qū)已經(jīng)可以看到[root@slave4~]#fdisk-lDisk/dev/sda:859.0GB,858993459200bytes255heads,63sectors/track,104433cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x0002a307DeviceBoot StartEndBlocksIdSystem/dev/sda1 *164512000 83 LinuxPartition1doesnotendoncylinderboundary./dev/sda264 104434 838347776 8e LinuxLVMDisk/dev/sdb:214.7GB,214748364800bytes255heads,63sectors/track,26108cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x8ebdd174DeviceBoot StartEndBlocksIdSystem/dev/sdb1126108209712478+8eLinuxLVMDisk/dev/mapper/vg_cdh235-lv_root:53.7GB,53687091200bytes255heads,63sectors/track,6527cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x00000000Disk/dev/mapper/vg_cdh235-lv_swap:5947MB,5947523072bytes255heads,63sectors/track,723cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x00000000Disk/dev/mapper/vg_cdh235-lv_home:798.8GB,798830362624bytes255heads,63sectors/track,97118cylindersUnits=cylindersof16065*512=8225280bytesSectorsize(logical/physical):512bytes/512bytesI/Osize(minimum/optimal):512bytes/512bytesDiskidentifier:0x000000007、注意不要將新建的磁盤分區(qū)掛載到Linux的文件系統(tǒng)中，我們是要對7進行擴容，而不是添加一個區(qū)。順便記錄一下，掛載命令是mount/dev/sdb1/指定位置空文件夾/。如果要開機自動掛載，需要修改/etc/fstab文件的內(nèi)容，添加一行：/dev/sdbl/掛載文件夾ext4defaults00.掛載使用之前，需要將磁盤先格式化:mkfs.ext4/dev/sdc1格式化成ext4，同理ext3,2就是修改一下數(shù)字。8、創(chuàng)建物理卷：[root@slave4~]#pvcreate/dev/sdb1Physicalvolume"/dev/sdb1"successfullycreated查看當前卷組情況（擴展空間前）[root@slave4~]#vgdisplay---Volumegroup---VGNameSystemIDFormatMetadataAreasvg_cdh235lvm21MetadataSequenceNo4VGAccessVGStatusMAXLVCurLVOpenLVMaxPVCurPVActPVVGSizePESizeTotalPEAllocPE/SizeFreePE/SizeVGUUIDread/writeresizable033011799.51GiB4.00MiB204674204674/799.51GiB0/0yuNdxz-uCKT-3gT9-cghm-YSna-1uJl-TNmraO擴展卷組vg_cdh235：[root@slave4~]#vgextend/dev/vg_cdh235/dev/sdb1Volumegroup"vg_cdh235"successfullyextended

查看新的vg大?。〝U展空間后）[root@slave4~]#vgdisplay---Volumegroup---VGNameSystemIDFormatMetadataAreasvg_cdh235lvm22MetadataSequenceNo5VGAccessVGStatusMAXLVCurLVOpenLVMax