CentOS 7 's hard disk space expansion in VMware virtual machines

• View CENTOS7 System mount point information
• Extend VMWARE-CENTOS7 hard disk space
• Partition and format the newly added hard drive
• Add new LVM to existing LVM groups for capacity expansion

1.View CENTOS7 System mount point information

Df-h Viewing mount point information

2. Expand VMWARE-CENTOS7 Hard Disk space

Turn off VMware's CENTOS7 system to set the size of the disk that needs to be increased in the VMware menu

If this option is grayed out, this virtual machine has a snapshot, delete all the snapshots and try again!

3. Partition and format the newly added hard drive

We have added space to the hard drive is/DEV/SDA

Partition:
[[Email protected]]# FDISK/DEV/SDA
P View the number of partitions (I see two/dev/sda1/dev/sda2)
n Add a new partition
P Partition Type we select Primary partition
Area code Input 3 (because it has already been used, SDA1 is partition 1,sda2 is partition 2,SDA3 partition 3)
Enter default (Start sector)
Enter default (end sector)
T modify the partition type
Select Partition 3
8e modified to LVM (8e is LVM)
W Write partition Table
Q Complete, exit the FDISK command

Use the Partprobe command or restart the machine

To format the Partition 3 command:

Mkfs.ext3/dev/sda3

4. Add new LVM to existing LVM group for capacity expansion

LVM into LVM Management

LVM>pvcreate/dev/sda3 This is the partition that was initialized just now 3

LVM>vgextend Centos/dev/sda3 Add the initialized partition to the virtual volume group CentOS (volume and volume group commands can be Vgdisplay)

LVM>vgdisplay- v or vgdisplay view free pe/site

LVM>lvextend -l +6143/dev/mapper/centos-root expands the capacity of an existing volume (6143 is to view free PE by Vgdisplay The size of the site)

lvm>pvdisplay view volume capacity, you will see a large volume

LVM>quit Exit

The above is just the volume expansion, the following is the real expansion of the file system, enter the following command:

CentOS7 the following due to the use of the XFS command:

/dev/mapper/centos-root is df-h to see the mount point of the root directory

Xfs_growfs/dev/mapper/centos-root

CentOS6 using the command:

Resize2fs/dev/mapper/centos-root

To view the new disk space:

Df-h

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CentOS 7 Hard disk space expansion in VMware virtual machines