1. Gunakan XFS sebagai Filesystem di VM.
Sejauh yang saya tahu, hanya filesystem XFS yang dapat melakukan metode ini.
Requierement:
1. Use XFS as Filesystem at VM.
As far i know, only XFS filesystem can doing this method.
Configure
Resize Disk VM via qm cli
root@alpha:~# qm list
VMID NAME STATUS MEM(MB) BOOTDISK(GB) PID
201 alpha stopped 8196 32.00 0
root@alpha:~# qm resize 201 scsi0 +168G
Image resized.
root@alpha:~#
root@alpha:~# qm list
VMID NAME STATUS MEM(MB) BOOTDISK(GB) PID
201 alpha stopped 8196 200.00 0
root@alpha:~#
Resize Partition
[root@localhost ~]# parted /dev/sda
GNU Parted 3.1
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Model: QEMU QEMU HARDDISK (scsi)
Disk /dev/sda: 215GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:
Number Start End Size Type File system Flags
1 1049kB 1075MB 1074MB primary xfs boot
2 1075MB 34.4GB 33.3GB primary lvm
(parted) resizepart 2 100%
(parted) print
Model: QEMU QEMU HARDDISK (scsi)
Disk /dev/sda: 215GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:
Number Start End Size Type File system Flags
1 1049kB 1075MB 1074MB primary xfs boot
2 1075MB 215GB 214GB primary lvm
(parted) quit
[root@localhost ~]#
Show current disk at VM
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 30G 1.1G 29G 4% /
devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs 3.9G 8.5M 3.9G 1% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/sda1 1014M 142M 873M 14% /boot
tmpfs 783M 0 783M 0% /run/user/1000
[root@localhost ~]#
show current Phisycal Volume
[root@localhost ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name centos
PV Size <31.00 GiB / not usable 3.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 7935
Free PE 0
Allocated PE 7935
PV UUID dWzC8B-TkO9-hiHN-Oodx-c2d-nzQ-zrJfGN
[root@localhost ~]#
Resize Phisycal Volume
[root@localhost ~]# pvresize /dev/sda2
Physical volume "/dev/sda2" changed
1 physical volume(s) resized / 0 physical volume(s) not resized
[root@localhost ~]#
[root@localhost ~]# pvdisplay
--- Physical volume ---
PV Name /dev/sda2
VG Name centos
PV Size <199.00 GiB / not usable 2.00 MiB
Allocatable yes
PE Size 4.00 MiB
Total PE 50943
Free PE 43008
Allocated PE 7935
PV UUID dWzC8B-TkO9-hiHN-Oodx-c2d-nzQ-zrJfGN
[root@localhost ~]#
Resize Logical Volume
[root@localhost ~]# lvresize --extents +100%FREE --resizefs /dev/centos/root
Size of logical volume centos/root changed from <30.00 GiB (7679 extents) to <198.00 GiB (50687 extents).
Logical volume centos/root successfully resized.
meta-data=/dev/mapper/centos-root isize=512 agcount=5, agsize=1965568 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0 spinodes=0
data = bsize=4096 blocks=7863296, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal bsize=4096 blocks=3839, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
data blocks changed from 7863296 to 51903488
[root@localhost ~]#
Test
show current disk
[root@localhost ~]# df -Th
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/centos-root xfs 198G 1.1G 197G 1% /
devtmpfs devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs tmpfs 3.9G 8.5M 3.9G 1% /run
tmpfs tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/sda1 xfs 1014M 142M 873M 14% /boot
tmpfs tmpfs 783M 0 783M 0% /run/user/1000
[root@localhost ~]#
