Esxi Centos7.9扩容磁盘空间
1.在虚机添加磁盘
看那个LUN有空间划分500G
2.通过SSH工具登录服务器
[root@localhost ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
fd0 2:0 1 4K 0 disk
sda 8:0 0 50G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 49.5G 0 part
├─centos-root 253:0 0 41.5G 0 lvm /
└─centos-swap 253:1 0 8G 0 lvm [SWAP]
sdb 8:16 0 1T 0 disk
└─vg0-lv0 253:2 0 1.5T 0 lvm /dbbackup
sdc 8:32 0 500G 0 disk
└─sdc1 8:33 0 500G 0 part
└─vg0-lv0 253:2 0 1.5T 0 lvm /dbbackup
sdd 8:48 0 500G 0 disk
sr0 11:0 1 1024M 0 rom
[root@localhost ~]# fdisk /dev/sdd
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.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0xf043bc89.
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-1048575999, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-1048575999, default 1048575999):
Using default value 1048575999
Partition 1 of type Linux and of size 500 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
[root@localhost ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
fd0 2:0 1 4K 0 disk
sda 8:0 0 50G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 49.5G 0 part
├─centos-root 253:0 0 41.5G 0 lvm /
└─centos-swap 253:1 0 8G 0 lvm [SWAP]
sdb 8:16 0 1T 0 disk
└─vg0-lv0 253:2 0 1.5T 0 lvm /dbbackup
sdc 8:32 0 500G 0 disk
└─sdc1 8:33 0 500G 0 part
└─vg0-lv0 253:2 0 1.5T 0 lvm /dbbackup
sdd 8:48 0 500G 0 disk
└─sdd1 8:49 0 500G 0 part
sr0 11:0 1 1024M 0 rom
[root@localhost ~]# pvcreate /dev/sdd1
Physical volume "/dev/sdd1" successfully created.
[root@localhost ~]# vgdisplay
--- Volume group ---
VG Name centos
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 49.50 GiB
PE Size 4.00 MiB
Total PE 12673
Alloc PE / Size 12672 / 49.50 GiB
Free PE / Size 1 / 4.00 MiB
VG UUID UcvgkA-OcFr-mqmH-zHnY-9fjk-1ejZ-rjJ28n
--- Volume group ---
VG Name vg0
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 4
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 2
Act PV 2
VG Size
PE Size 4.00 MiB
Total PE 390142
Alloc PE / Size 390142 /
Free PE / Size 0 / 0
VG UUID xFT1Co-ZKKD-2rst-Wzmc-tgoO-PFIc-yJmVTk
[root@localhost ~]# vgextend vg0 /dev/sdd1
Volume group "vg0" successfully extended
[root@localhost ~]# lvdisplay
--- Logical volume ---
LV Path /dev/centos/swap
LV Name swap
VG Name centos
LV UUID dn0PXn-sqgk-LfFj-wEst-t7nV-SNIA-d2n0ut
LV Write Access read/write
LV Creation host, time localhost, 2020-08-24 10:11:22 +0800
LV Status available
# open 2
LV Size 8.00 GiB
Current LE 2048
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:1
--- Logical volume ---
LV Path /dev/centos/root
LV Name root
VG Name centos
LV UUID cdf5MF-CGqO-grad-Ezw4-HRGh-XFEF-Ju7Vuo
LV Write Access read/write
LV Creation host, time localhost, 2020-08-24 10:11:23 +0800
LV Status available
# open 1
LV Size 41.50 GiB
Current LE 10624
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:0
--- Logical volume ---
LV Path /dev/vg0/lv0
LV Name lv0
VG Name vg0
LV UUID l4cfel-nH9X-oH2V-eFts-SjLe-Pv3d-Nf3ZxV
LV Write Access read/write
LV Creation host, time localhost, 2020-09-17 10:54:31 +0800
LV Status available
# open 1
LV Size
Current LE 390142
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 8192
Block device 253:2
[root@localhost ~]# vgdisplay
--- Volume group ---
VG Name centos
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 3
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 2
Open LV 2
Max PV 0
Cur PV 1
Act PV 1
VG Size 49.50 GiB
PE Size 4.00 MiB
Total PE 12673
Alloc PE / Size 12672 / 49.50 GiB
Free PE / Size 1 / 4.00 MiB
VG UUID UcvgkA-OcFr-mqmH-zHnY-9fjk-1ejZ-rjJ28n
--- Volume group ---
VG Name vg0
System ID
Format lvm2
Metadata Areas 3
Metadata Sequence No 5
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 3
Act PV 3
VG Size
PE Size 4.00 MiB
Total PE 518141
Alloc PE / Size 390142 /
Free PE / Size 127999 /
VG UUID xFT1Co-ZKKD-2rst-Wzmc-tgoO-PFIc-yJmVTk
[root@localhost ~]# lvextend -l +127999 /dev/vg0/lv0
Size of logical volume vg0/lv0 changed from
Logical volume vg0/lv0 successfully resized.
[root@localhost ~]# resize2fs /dev/vg0/lv0
resize2fs 1.42.9 (28-Dec-2013)
Filesystem at /dev/vg0/lv0 is mounted on /dbbackup; on-line resizing required
old_desc_blocks = 191, new_desc_blocks = 253
The filesystem on /dev/vg0/lv0 is now 530576384 blocks long.
[root@localhost ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 42G 11G 31G 27% /
devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs 3.9G 410M 3.5G 11% /run
tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/sda1 497M 172M 326M 35% /boot
/dev/mapper/vg0-lv0 2.0T 234G 1.7T 13% /dbbackup
tmpfs 783M 12K 783M 1% /run/user/42
tmpfs 783M 0 783M 0% /run/user/0
