cenots 调整分区大小和lv的扩容
[root@node-1 ~]# fdisk /dev/vda Welcome to fdisk (util-linux 2.23.2). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): p Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: dos Disk identifier: 0x000d4405 Device Boot Start End Blocks Id System /dev/vda1 * 2048 2099199 1048576 83 Linux /dev/vda2 2099200 20971519 9436160 8e Linux LVM Command (m for help): d Partition number (1,2, default 2): 2 Partition 2 is deleted Command (m for help): n Partition type: p primary (1 primary, 0 extended, 3 free) e extended Select (default p): p Partition number (2-4, default 2): First sector (2099200-83886079, default 2099200): Using default value 2099200 Last sector, +sectors or +size{K,M,G} (2099200-83886079, default 83886079): Using default value 83886079 Partition 2 of type Linux and of size 39 GiB is set Command (m for help): p Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: dos Disk identifier: 0x000d4405 Device Boot Start End Blocks Id System /dev/vda1 * 2048 2099199 1048576 83 Linux /dev/vda2 2099200 83886079 40893440 83 Linux Command (m for help): t Partition number (1,2, default 2): 2 Hex code (type L to list all codes): 8e Changed type of partition 'Linux' to 'Linux LVM' Command (m for help): p Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: dos Disk identifier: 0x000d4405 Device Boot Start End Blocks Id System /dev/vda1 * 2048 2099199 1048576 83 Linux /dev/vda2 2099200 83886079 40893440 8e Linux LVM Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. WARNING: Re-reading the partition table failed with error 16: Device or resource busy. The kernel still uses the old table. The new table will be used at the next reboot or after you run partprobe(8) or kpartx(8) Syncing disks. [root@node-1 ~]# lvextend -l +100%FREE /dev/mapper/centos-root New size (2047 extents) matches existing size (2047 extents). [root@node-1 ~]# lvextend -l +100%FREE /dev/mapper/centos-root New size (2047 extents) matches existing size (2047 extents). [root@node-1 ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT vda 252:0 0 40G 0 disk ├─vda1 252:1 0 1G 0 part /boot └─vda2 252:2 0 39G 0 part ├─centos-root 253:0 0 8G 0 lvm / └─centos-swap 253:1 0 1G 0 lvm [SWAP] [root@node-1 ~]# pvs PV VG Fmt Attr PSize PFree /dev/vda2 centos lvm2 a-- <9.00g 0 [root@node-1 ~]# pvresize /dev/vda2 Physical volume "/dev/vda2" changed 1 physical volume(s) resized / 0 physical volume(s) not resized [root@node-1 ~]# pvs PV VG Fmt Attr PSize PFree /dev/vda2 centos lvm2 a-- <39.00g 30.00g [root@node-1 ~]# lvextend -l +100%FREE /dev/mapper/centos-root Size of logical volume centos/root changed from <8.00 GiB (2047 extents) to <38.00 GiB (9727 extents). Logical volume centos/root successfully resized. [root@node-1 ~]# lvs LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert root centos -wi-ao---- <38.00g swap centos -wi-ao---- 1.00g [root@node-1 ~]# xfs_growfs /dev/mapper/centos-root meta-data=/dev/mapper/centos-root isize=512 agcount=4, agsize=524032 blks = sectsz=512 attr=2, projid32bit=1 = crc=1 finobt=0 spinodes=0 data = bsize=4096 blocks=2096128, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=1 log =internal bsize=4096 blocks=2560, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 data blocks changed from 2096128 to 9960448 [root@node-1 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root 38G 1.1G 37G 3% / devtmpfs 1.9G 0 1.9G 0% /dev tmpfs 1.9G 0 1.9G 0% /dev/shm tmpfs 1.9G 17M 1.9G 1% /run tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup /dev/vda1 1014M 143M 872M 15% /boot tmpfs 380M 0 380M 0% /run/user/0