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April 20, 2021 15:33
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Resizing a logical volume in an LVM filesystem
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| [root@ecoll-v2-mysql-master-01 ~]# umount /home/ | |
| [root@ecoll-v2-mysql-master-01 ~]# df -h | |
| Filesystem Size Used Avail Use% Mounted on | |
| devtmpfs 12G 0 12G 0% /dev | |
| tmpfs 12G 0 12G 0% /dev/shm | |
| tmpfs 12G 20M 12G 1% /run | |
| tmpfs 12G 0 12G 0% /sys/fs/cgroup | |
| /dev/mapper/centos-root 50G 45G 5.6G 89% / | |
| /dev/sda1 1014M 181M 834M 18% /boot | |
| tmpfs 2.3G 0 2.3G 0% /run/user/0 | |
| [root@ecoll-v2-mysql-master-01 ~]# lvs | |
| LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert | |
| home centos -wi-a----- 961.49g | |
| root centos -wi-ao---- 50.00g | |
| swap centos -wi-ao---- 11.50g | |
| [root@ecoll-v2-mysql-master-01 ~]# lvremove /dev/centos/home | |
| Do you really want to remove active logical volume centos/home? [y/n]: y | |
| Logical volume "home" successfully removed | |
| [root@ecoll-v2-mysql-master-01 ~]# lvextend -L+930GB /dev/centos/root | |
| Size of logical volume centos/root changed from 50.00 GiB (12800 extents) to 980.00 GiB (250880 extents). | |
| Logical volume centos/root successfully resized. | |
| [root@ecoll-v2-mysql-master-01 ~]# lvs | |
| LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert | |
| root centos -wi-ao---- 980.00g | |
| swap centos -wi-ao---- 11.50g | |
| [root@ecoll-v2-mysql-master-01 ~]# df -h | |
| Filesystem Size Used Avail Use% Mounted on | |
| devtmpfs 12G 0 12G 0% /dev | |
| tmpfs 12G 0 12G 0% /dev/shm | |
| tmpfs 12G 20M 12G 1% /run | |
| tmpfs 12G 0 12G 0% /sys/fs/cgroup | |
| /dev/mapper/centos-root 50G 45G 5.6G 89% / | |
| /dev/sda1 1014M 181M 834M 18% /boot | |
| tmpfs 2.3G 0 2.3G 0% /run/user/0 | |
| [root@ecoll-v2-mysql-master-01 ~]# lvs^C | |
| [root@ecoll-v2-mysql-master-01 ~]# xfs_growfs /dev/mapper/centos-root | |
| meta-data=/dev/mapper/centos-root isize=512 agcount=4, agsize=3276800 blks | |
| = sectsz=512 attr=2, projid32bit=1 | |
| = crc=1 finobt=0 spinodes=0 | |
| data = bsize=4096 blocks=13107200, imaxpct=25 | |
| = sunit=0 swidth=0 blks | |
| naming =version 2 bsize=4096 ascii-ci=0 ftype=1 | |
| log =internal bsize=4096 blocks=6400, version=2 | |
| = sectsz=512 sunit=0 blks, lazy-count=1 | |
| realtime =none extsz=4096 blocks=0, rtextents=0 | |
| data blocks changed from 13107200 to 256901120 | |
| [root@ecoll-v2-mysql-master-01 ~]# df -h | |
| Filesystem Size Used Avail Use% Mounted on | |
| devtmpfs 12G 0 12G 0% /dev | |
| tmpfs 12G 0 12G 0% /dev/shm | |
| tmpfs 12G 20M 12G 1% /run | |
| tmpfs 12G 0 12G 0% /sys/fs/cgroup | |
| /dev/mapper/centos-root 980G 45G 936G 5% / | |
| /dev/sda1 1014M 181M 834M 18% /boot | |
| tmpfs 2.3G 0 2.3G 0% /run/user/0 | |
| [root@ecoll-v2-mysql-master-01 ~]# lvcreate lvs | |
| No command with matching syntax recognised. Run 'lvcreate --help' for more information. | |
| [root@ecoll-v2-mysql-master-01 ~]# lvs | |
| LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert | |
| root centos -wi-ao---- 980.00g | |
| swap centos -wi-ao---- 11.50g | |
| [root@ecoll-v2-mysql-master-01 ~]# lvcreate -n home -L 20G centos | |
| Logical volume "home" created. | |
| [root@ecoll-v2-mysql-master-01 ~]# lvs | |
| LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert | |
| home centos -wi-a----- 20.00g | |
| root centos -wi-ao---- 980.00g | |
| swap centos -wi-ao---- 11.50g | |
| [root@ecoll-v2-mysql-master-01 ~]# mkfs.ext /dev/centos/home | |
| -bash: mkfs.ext: command not found | |
| [root@ecoll-v2-mysql-master-01 ~]# mkfs.ext4 /dev/centos/home | |
| mke2fs 1.42.9 (28-Dec-2013) | |
| Discarding device blocks: done | |
| Filesystem label= | |
| OS type: Linux | |
| Block size=4096 (log=2) | |
| Fragment size=4096 (log=2) | |
| Stride=0 blocks, Stripe width=0 blocks | |
| 1310720 inodes, 5242880 blocks | |
| 262144 blocks (5.00%) reserved for the super user | |
| First data block=0 | |
| Maximum filesystem blocks=2153775104 | |
| 160 block groups | |
| 32768 blocks per group, 32768 fragments per group | |
| 8192 inodes per group | |
| Superblock backups stored on blocks: | |
| 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, | |
| 4096000 | |
| Allocating group tables: done | |
| Writing inode tables: done | |
| Creating journal (32768 blocks): done | |
| Writing superblocks and filesystem accounting information: done | |
| [root@ecoll-v2-mysql-master-01 ~]# df -h | |
| Filesystem Size Used Avail Use% Mounted on | |
| devtmpfs 12G 0 12G 0% /dev | |
| tmpfs 12G 0 12G 0% /dev/shm | |
| tmpfs 12G 20M 12G 1% /run | |
| tmpfs 12G 0 12G 0% /sys/fs/cgroup | |
| /dev/mapper/centos-root 980G 45G 936G 5% / | |
| /dev/sda1 1014M 181M 834M 18% /boot | |
| tmpfs 2.3G 0 2.3G 0% /run/user/0 | |
| tmpfs 2.3G 0 2.3G 0% /run/user/1004 | |
| [root@ecoll-v2-mysql-master-01 ~]# mount /dev/centos/home /home/ | |
| [root@ecoll-v2-mysql-master-01 ~]# df -h | |
| Filesystem Size Used Avail Use% Mounted on | |
| devtmpfs 12G 0 12G 0% /dev | |
| tmpfs 12G 0 12G 0% /dev/shm | |
| tmpfs 12G 20M 12G 1% /run | |
| tmpfs 12G 0 12G 0% /sys/fs/cgroup | |
| /dev/mapper/centos-root 980G 45G 936G 5% / | |
| /dev/sda1 1014M 181M 834M 18% /boot | |
| tmpfs 2.3G 0 2.3G 0% /run/user/0 | |
| tmpfs 2.3G 0 2.3G 0% /run/user/1004 | |
| /dev/mapper/centos-home 20G 45M 19G 1% /home | |
| [root@ecoll-v2-mysql-master-01 ~]# logout | |
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