Attach a disk to the centos 7 VM Instance System

Attach a disk to the centos 7 VM Instance System

I. Preparation
One centos7 cloud host
50 GB cloud Disk
Attach a cloud disk to a VM instance

Ii. attaching a disk
1.1 view new disk

[root@cgsl ]# fdisk –l

Find the number of the Newly Added Disk:/dev/vdc

1.2 hard disk partition enters fdisk Mode

[root@cgsl ]# /sbin/fdisk /dev/vdc

Input n to partition

[root@cgsl ]# Command (m for help): n

Select partition type

[root@cgsl ]# Select (default p): p

Select the number of partitions

[root@cgsl ]# Partition number (1-4, default 1): 1

Press enter all the time and enter q to exit.

3. format the partition to format the new partition to the ext3 file system.

[root@cgsl ]# mkfs -t ext3 /dev/vdc

4. Mount the hard disk 1. Create a mount point and create a storage directory under the root directory

[root@cgsl ]# mkdir /storage

2. Mount/dev/vdc to/storage

[root@cgsl ]# mount /dev/vdc /storage

3. Set automatic mounting upon startup the newly created partition cannot be automatically mounted upon startup. Manual mounting is required for each reboot of the machine. Modify the/etc/fstab file to set automatic mounting upon startup.

#vi /etc/fstab 

Add/dev/vdc/storage ext3 defaults 1 2 at the end of the file

Make sure to query your hard disk format by using df-T.