/dev/mapper/ubuntu–vg-root 100% Full 해결방법
LVM Disk 가 Full 일경우 LVM 기반 Ubuntu Disk 확장하여 문제를 해결할 수 있습니다.
VMWare ESXi 기준으로 설명하겠습니다.
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root@ubuntu:~# df -h Filesystem Size Used Avail Use% Mounted on udev 967M 0 967M 0% /dev tmpfs 200M 796K 199M 1% /run /dev/mapper/ubuntu--vg-root 14G 13G 184M 99% / tmpfs 997M 0 997M 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 997M 0 997M 0% /sys/fs/cgroup tmpfs 200M 0 200M 0% /run/user/1000 |
1.먼저 가상머신을 종료합니다.
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root@ubuntu:~# shutdown -h now |
2.VMWare ESXi 에서 DISK 용량을 확장합니다.
아래와 같이 용량을 확장해줍니다.
3.fdisk 를 이용하여 disk를 확장합니다.
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root@ubuntu:~# fdisk /dev/sda Welcome to fdisk (util-linux 2.31.1). 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/sda: 32 GiB, 34359738368 bytes, 67108864 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 Disklabel type: dos Disk identifier: 0xb2d7b26a Device Boot Start End Sectors Size Id Type /dev/sda1 * 2048 33552383 33550336 16G 8e Linux LVM Command (m for help): n Partition type p primary (1 primary, 0 extended, 3 free) e extended (container for logical partitions) Select (default p): p Partition number (2-4, default 2): First sector (33552384-67108863, default 33552384): Last sector, +sectors or +size{K,M,G,T,P} (33552384-67108863, default 67108863): Created a new partition 2 of type 'Linux' and of size 16 GiB. Command (m for help): p Disk /dev/sda: 32 GiB, 34359738368 bytes, 67108864 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 Disklabel type: dos Disk identifier: 0xb2d7b26a Device Boot Start End Sectors Size Id Type /dev/sda1 * 2048 33552383 33550336 16G 8e Linux LVM /dev/sda2 33552384 67108863 33556480 16G 83 Linux Command (m for help): w The partition table has been altered. Syncing disks. root@ubuntu:~# |
4.pvcreate, lvextend , resize2fs 를 이용하여 disk를 확장합니다.
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root@ubuntu:~# pvcreate /dev/sda2 Physical volume "/dev/sda2" successfully created. root@ubuntu:~# pvscan PV /dev/sda1 VG ubuntu-vg lvm2 [<16.00 GiB / 0 free] PV /dev/sda2 lvm2 [16.00 GiB] Total: 2 [<32.00 GiB] / in use: 1 [<16.00 GiB] / in no VG: 1 [16.00 GiB] root@ubuntu:~# vgextend ubuntu-vg /dev/sda2 Volume group "ubuntu-vg" successfully extended root@ubuntu:~# pvscan PV /dev/sda1 VG ubuntu-vg lvm2 [<16.00 GiB / 0 free] PV /dev/sda2 VG ubuntu-vg lvm2 [16.00 GiB / 16.00 GiB free] Total: 2 [<32.00 GiB] / in use: 2 [<32.00 GiB] / in no VG: 0 [0 ] root@ubuntu:~# vgdisplay ubuntu-vg --- Volume group --- VG Name ubuntu-vg System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 4 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 2 Act PV 2 VG Size <32.00 GiB PE Size 4.00 MiB Total PE 8191 Alloc PE / Size 4095 / <16.00 GiB Free PE / Size 4096 / 16.00 GiB VG UUID jbtYju-j7oa-VGig-jfdg-h3dz-Foxs-s0L2zc root@ubuntu:~# lvextend -L +16g /dev/ubuntu-vg/root Size of logical volume ubuntu-vg/root changed from <14.00 GiB (3583 extents) to <30.00 GiB (7679 extents). Logical volume ubuntu-vg/root successfully resized. root@ubuntu:~# resize2fs /dev/ubuntu-vg/root resize2fs 1.44.1 (24-Mar-2018) Filesystem at /dev/ubuntu-vg/root is mounted on /; on-line resizing required old_desc_blocks = 2, new_desc_blocks = 4 The filesystem on /dev/ubuntu-vg/root is now 7863296 (4k) blocks long. |
5.확장된 disk 확인
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root@ubuntu:~# df -h Filesystem Size Used Avail Use% Mounted on udev 967M 0 967M 0% /dev tmpfs 200M 788K 199M 1% /run /dev/mapper/ubuntu--vg-root 30G 13G 16G 46% / tmpfs 997M 0 997M 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 997M 0 997M 0% /sys/fs/cgroup tmpfs 200M 0 200M 0% /run/user/1000 |