查看卷组相关信息
[html]view plain copy [root@localhost/]#vgscanReadingallphysicalvolumes.Thismaytakeawhile...Foundvolumegroup"VolGroup00"usingmetadatatypelvm2查看卷组VolGroup00包含的PV、LV信息。
[html]view plain copy [root@localhost/]#vgdisplay-vVolGroup00Usingvolumegroup(s)oncommandlineFindingvolumegroup"VolGroup00"---Volumegroup---VGNameVolGroup00SystemIDFormatlvm2MetadataAreas1MetadataSequenceNo2VGAccessread/writeVGStatusresizableMAXLV0CurLV1OpenLV0MaxPV0CurPV1ActPV1VGSize1.01GiBPESize8.00MiBTotalPE129AllocPE/Size100/800.00MiBFreePE/Size29/232.00MiBVGUUIDCug510-pQb6-RELO-lb1K-zjbt-3f62-jQLoQp---Logicalvolume---LVPath/dev/VolGroup00/iscsi00LVNameiscsi00VGNameVolGroup00LVUUIDtE78D6-5kJf-0HOh-4jRX-oLhI-ehyR-XhMmMQLVWriteAccessread/writeLVCreationhost,timelocalhost.iscsi,-01-1914:25:40+0800LVStatusavailable#open0LVSize800.00MiBCurrentLE100Segments1AllocationinheritReadaheadsectorsauto-currentlysetto256Blockdevice253:0---Physicalvolumes---PVName/dev/sda7PVUUIDOWz0uw-gTR1-WylF-z6HW-cgpe-LLd9-2W8Q9gPVStatusallocatableTo编辑/etc/fstab,删除对应挂载信息talPE/FreePE129/29
卸载卷组上的逻辑卷LV
要卸载对应卷组VG的所有逻辑卷LV。从上面的信息可以看出对应的卷组VolGroup00只有/dev/VolGroup00/iscsi00这个逻辑卷LV
[html]view plain copy [root@localhost/]#umount/dev/VolGroup00/iscsi00
如果还用进程在使用对应逻辑卷的文件,就必须强制卸载挂接点(#df -Th 查看)。
删除逻辑卷LV
[html]view plain copy [root@localhost/]#lvremove/dev/VolGroup00/iscsi00Doyoureallywanttoremoveactivelogicalvolumeiscsi00?[y/n]:yLogicalvolume"iscsi00"successfullyremoved[root@localhost/]#如果删除提示出错,那么检查下当前使用该逻辑卷的进程,然后结束该进程或者服务即可。
验证LV是否删除
[html]view plain copy [root@localhost/]#lvdisplay|grep"dev/VolGroup00/iscsi00"
删除卷组VG
[html]view plain copy [root@localhost/]#vgremoveVolGroup00Volumegroup"VolGroup00"successfullyremoved[root@localhost/]#如果采用安全的方式删除卷组VG,则必须使用 vgchange -a n VolGroup00 将其关闭,然后再删除它。
[html]view plain copy [root@localhost/]#vgchange-anVolGroup000logicalvolume(s)involumegroup"VolGroup00"nowactive[root@localhost/]#vgremoveVolGroup00Volumegroup"VolGroup00"successfullyremoved[root@localhost/]#
验证卷组(VG)是否删除
[html]view plain copy [root@localhost/]#vgscanReadingallphysicalvolumes.Thismaytakeawhile...Novolumegroupsfound[root@localhost/]#