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知识笔记
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/span>code> 17 umount /home 19 lvs 20 lvremove /dev/mapper/centos-home 21 lvresize -l 100%FREE /dev/centos/root 28 xfs_growfs /dev/mapper/centos-root 29 df -Th[rootlocalhost ~]# df -ThFilesystem Type Size Used Avail Use% Mounted on/dev/mapper/centos-root xfs 50G 1007M 49G 2% /devtmpfs devtmpfs 2.0G 0 2.0G 0% /devtmpfs tmpfs 2.0G 0 2.0G 0% /dev/shmtmpfs tmpfs 2.0G 8.6M 2.0G 1% /runtmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup/dev/sda1 xfs 1014M 133M 882M 14% /boot/dev/mapper/centos-home xfs 46G 33M 46G 1% /hometmpfs tmpfs 396M 0 396M 0% /run/user/0先卸载/home[rootlocalhost ~]# umount /home[rootlocalhost ~]# vgs VG #PV #LV #SN Attr VSize VFree centos 1 3 0 wz--n- <99.00g 4.00m[rootlocalhost ~]# pvs PV VG Fmt Attr PSize PFree /dev/sda2 centos lvm2 a-- <99.00g 4.00m[rootlocalhost ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert home centos -wi-a----- <45.12g root centos -wi-ao---- 50.00g swap centos -wi-ao---- <3.88g[rootlocalhost ~]# lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTsda 8:0 0 100G 0 disk├─sda1 8:1 0 1G 0 part /boot└─sda2 8:2 0 99G 0 part ├─centos-root 253:0 0 50G 0 lvm / ├─centos-swap 253:1 0 3.9G 0 lvm [SWAP] └─centos-home 253:2 0 45.1G 0 lvmsr0 11:0 1 4.3G 0 rom[rootlocalhost ~]# lvremove /dev/centos/homeDo you really want to remove active logical volume centos/home? [y/n]: y Logical volume home successfully removed[rootlocalhost ~]# lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTsda 8:0 0 100G 0 disk├─sda1 8:1 0 1G 0 part /boot└─sda2 8:2 0 99G 0 part ├─centos-root 253:0 0 50G 0 lvm / └─centos-swap 253:1 0 3.9G 0 lvm [SWAP]sr0 11:0 1 4.3G 0 rom[rootlocalhost ~]#[rootlocalhost ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert root centos -wi-ao---- 50.00g swap centos -wi-ao---- <3.88g[rootlocalhost ~]# lvresize -l 100%FREE /dev/mapper/centos-root Size of logical volume centos/root changed from 50.00 GiB (12800 extents) to 95.12 GiB (24351 extents). Logical volume centos/root successfully resized.[rootlocalhost ~]# df -ThFilesystem Type Size Used Avail Use% Mounted on/dev/mapper/centos-root xfs 50G 1007M 49G 2% /devtmpfs devtmpfs 2.0G 0 2.0G 0% /devtmpfs tmpfs 2.0G 0 2.0G 0% /dev/shmtmpfs tmpfs 2.0G 8.6M 2.0G 1% /runtmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup/dev/sda1 xfs 1014M 133M 882M 14% /boottmpfs tmpfs 396M 0 396M 0% /run/user/0[rootlocalhost ~]# xfs_growfs /dev/mapper/centos-rootmeta-data/dev/mapper/centos-root isize512 agcount4, agsize3276800 blks sectsz512 attr2, projid32bit1 crc1 finobt0 spinodes0data bsize4096 blocks13107200, imaxpct25 sunit0 swidth0 blksnaming version 2 bsize4096 ascii-ci0 ftype1log internal bsize4096 blocks6400, version2 sectsz512 sunit0 blks, lazy-count1realtime none extsz4096 blocks0, rtextents0data blocks changed from 13107200 to 24935424[rootlocalhost ~]# df -ThFilesystem Type Size Used Avail Use% Mounted on/dev/mapper/centos-root xfs 96G 1007M 95G 2% /devtmpfs devtmpfs 2.0G 0 2.0G 0% /devtmpfs tmpfs 2.0G 0 2.0G 0% /dev/shmtmpfs tmpfs 2.0G 8.6M 2.0G 1% /runtmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup/dev/sda1 xfs 1014M 133M 882M 14% /boottmpfs tmpfs 396M 0 396M 0% /run/user/0[rootlocalhost ~]#/span>/pre> /span>/p>
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