steps
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check fs
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list fs
$ df -h 文件系统 容量 已用 可用 已用% 挂载点 /dev/mapper/centos-root 250G 1.4G 249G 1% / devtmpfs 16G 0 16G 0% /dev tmpfs 16G 0 16G 0% /dev/shm tmpfs 16G 8.5M 16G 1% /run tmpfs 16G 0 16G 0% /sys/fs/cgroup /dev/sdb2 294M 108M 187M 37% /boot /dev/sdb1 200M 9.5M 191M 5% /boot/efi /dev/mapper/centos-var_log 181G 36M 181G 1% /var/log /dev/mapper/centos-home 1.4T 33M 1.4T 1% /home tmpfs 3.2G 0 3.2G 0% /run/user/0 /dev/mapper/docker-docker--pool_tmeta /dev/mapper/docker-docker--pool_tdata /dev/mapper/docker-docker--pool -
umount
$ umount /var/lib/docker
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remove logical volume
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list
$ lvdisplay --- Logical volume --- LV Name docker-pool VG Name docker LV UUID 0bD9D6-sKc8-52fz-oigL-S162-cqvY-k4MSKG LV Write Access read/write LV Creation host, time poc1, 2017-12-12 23:18:57 +0800 LV Pool metadata docker-pool_tmeta LV Pool data docker-pool_tdata LV Status available # open 0 LV Size 55.30 GiB Allocated pool data 50.52% Allocated metadata 5.34% Current LE 14158 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:4 --- Logical volume --- LV Path /dev/centos/root LV Name root VG Name centos LV UUID 3C5niV-07n6-QDwO-xYLi-CU1n-wuqe-z4pH6b LV Write Access read/write LV Creation host, time poc1, 2018-04-21 11:04:53 +0800 LV Status available # open 1 LV Size 250.00 GiB Current LE 64000 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:0 --- Logical volume --- LV Path /dev/centos/swap LV Name swap VG Name centos LV UUID VaHYRf-JpcO-l2ve-fpMq-lGjL-sSa9-waTqu5 LV Write Access read/write LV Creation host, time poc1, 2018-04-21 11:04:55 +0800 LV Status available # open 2 LV Size 32.00 GiB Current LE 8192 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:1 --- Logical volume --- LV Path /dev/centos/var_log LV Name var_log VG Name centos LV UUID xrgvm6-UXae-g7eH-Mrjf-UGE0-sjwl-yxJTBR LV Write Access read/write LV Creation host, time poc1, 2018-04-21 11:04:55 +0800 LV Status available # open 1 LV Size 180.52 GiB Current LE 46213 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:5 --- Logical volume --- LV Path /dev/centos/home LV Name home VG Name centos LV UUID 5zvoiW-sFFo-vSZp-NFtZ-cu96-khuk-DugJUG LV Write Access read/write LV Creation host, time poc1, 2018-04-21 11:04:56 +0800 LV Status available # open 1 LV Size 1.37 TiB Current LE 358400 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 253:6 -
remove
$ lvremove docker Do you really want to remove active logical volume docker-pool? [y/n]: y /etc/lvm/profile/docker--docker-pool-extend.profile: stat failed: 没有那个文件或目录 Logical volume "docker-pool" successfully removed
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remove volume group
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list
$ vgdisplay --- Volume group --- VG Name docker System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 15 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 0 Max PV 0 Cur PV 1 Act PV 1 VG Size 238.47 GiB PE Size 4.00 MiB Total PE 61049 Alloc PE / Size 14282 / 55.79 GiB Free PE / Size 46767 / 182.68 GiB VG UUID 33sfpV-MrS3-ydoC-2mn1-TwM8-2w1Z-8XHSyP --- Volume group --- VG Name centos System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 5 VG Access read/write VG Status resizable MAX LV 0 Cur LV 4 Open LV 4 Max PV 0 Cur PV 1 Act PV 1 VG Size 1.82 TiB PE Size 4.00 MiB Total PE 476806 Alloc PE / Size 476805 / 1.82 TiB Free PE / Size 1 / 4.00 MiB VG UUID pH7wdj-2Jjj-kI7r-X8WT-cjvJ-z56n-7KGu1V -
remove volume group
$ vgremove docker
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remove physical volume
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list
$ pvdisplay --- Physical volume --- PV Name /dev/sda1 VG Name docker PV Size 238.47 GiB / not usable 1.34 MiB Allocatable yes PE Size 4.00 MiB Total PE 61049 Free PE 46767 Allocated PE 14282 PV UUID sgDwvX-eqDn-ZzOy-byP3-l00Z-ofFz-t5ZN9s --- Physical volume --- PV Name /dev/sdb3 VG Name centos PV Size 1.82 TiB / not usable 4.00 MiB Allocatable yes PE Size 4.00 MiB Total PE 476806 Free PE 1 Allocated PE 476805 PV UUID KEXnWk-oGiN-yaxL-gzMW-oMjl-qylf-edidJt -
remove
$ pvremove /dev/sda1
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