How to mount a new hard disk under centos on the aliyun Server

How to mount a new hard disk under centos on the aliyun Server
1. Use fdisk-l to check whether a new hard disk is not mounted. 2. initialize and format the hard disk.

1. fdisk/dev/xvdb1
2. m n p 1 w
3. fdisk-l check whether the partition is complete
4. mkfs. ext3/dev/xvdb1

3. Mount directory

1. Add the folder mkdir data22, mount the hard disk to data2: mount/dev/xvdb1/data23, vi/etc/fstab to write or use: echo '/dev/xvdb1/data2 ext3 defaults 0 0'>/etc/fstab 4. View df-h

Related usage

Move the old file to data2
Mv data0/* data2/

Detach a mount point:
Umount/data2
Modify the mounting record: vi/etc/fstab

View the folder size

1. ls-lht
2. du-sh/data2 or du-sh *
3. du-s backup. sh, ls-lh backup. sh