查看磁盘信息
df -h
查看未挂载磁盘
fdisk -l
树状查看分区信息
lsblk
[root@vm192-254-4-195 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 253:0 0 50G 0 disk
└─vda1 253:1 0 50G 0 part /
vdb 253:16 0 600G 0 disk
进行分区
-
当硬盘小于等于2T时，用fdisk，大于2T时，用parted
-
fdisk
- n：新建分区
- p：建立主分区
- w：写入分区
fdisk /dev/vdb
[root@vm192-254-4-195 ~]# fdisk /dev/vdb
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 0x1fb395c9.
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p):
Using default response p
Partition number (1-4, default 1):
First sector (2048-1258291199, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-1258291199, default 1258291199):
Using default value 1258291199
Partition 1 of type Linux and of size 600 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
树状查看分区信息
[root@vm192-254-4-195 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda 253:0 0 50G 0 disk
└─vda1 253:1 0 50G 0 part /
vdb 253:16 0 600G 0 disk
└─vdb1 253:17 0 600G 0 part
格式化分区
mkfs.ext4 /dev/vdb1
[root@vm192-254-4-195 ~]# mkfs.ext4 /dev/vdb1
mke2fs 1.42.9 (28-Dec-2013)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
39321600 inodes, 157286144 blocks
7864307 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2304770048
4800 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
挂载目录
mkdir /data
mount /dev/vdb1 /data
设置永久挂载
vi /etc/fstab
/dev/vdb1 /data ext4 defaults 0 0
查看挂载情况
[root@vm192-254-4-195 ~]# ll /data
total 16
drwx------ 2 root root 16384 Nov 22 18:43 lost+found
[root@vm192-254-4-195 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 50G 2.7G 45G 6% /
devtmpfs 32G 0 32G 0% /dev
tmpfs 32G 16K 32G 1% /dev/shm
tmpfs 32G 57M 32G 1% /run
tmpfs 32G 0 32G 0% /sys/fs/cgroup
/dev/vdb1 591G 73M 561G 1% /data
tmpfs 6.3G 0 6.3G 0% /run/user/0