2. 查看新挂载好的硬盘
# 使用 fdisk -l 命令查看所有磁盘信息
[root@gaia ~]# fdisk -l
Disk /dev/sda: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000b6389
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 104857599 51379200 8e Linux LVM
Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/centos-root: 48.4 GB, 48444211200 bytes, 94617600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/centos-swap: 4160 MB, 4160749568 bytes, 8126464 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
# 显示
/dev/sda 是正常使用的硬盘
/dev/sdb 是新加上的硬盘
3. 分区
# 使用 fdisk /dev/sdb 命令对新的加入的硬盘进行分区
[root@gaia ~]# fdisk /dev/sdb
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 0x9bfd8348.
Command (m for help): n # 表示创建分区
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p # 表示创建主分区
Partition number (1-4, default 1): 1 # 表示创建1号分区
First sector (2048-20971519, default 2048): # 表示起始分区，默认
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-20971519, default 20971519): # 表示结束分区，默认是全部容量
Using default value 20971519
Partition 1 of type Linux and of size 10 GiB is set
Command (m for help): w # 表示写入分区，生效
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
# 使用 fdisk -l 命令查看分区结果
[root@gaia ~]# fdisk -l
Disk /dev/sda: 53.7 GB, 53687091200 bytes, 104857600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000b6389
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 2099199 1048576 83 Linux
/dev/sda2 2099200 104857599 51379200 8e Linux LVM
Disk /dev/sdb: 10.7 GB, 10737418240 bytes, 20971520 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x9bfd8348
Device Boot Start End Blocks Id System
/dev/sdb1 2048 20971519 10484736 83 Linux
Disk /dev/mapper/centos-root: 48.4 GB, 48444211200 bytes, 94617600 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mapper/centos-swap: 4160 MB, 4160749568 bytes, 8126464 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
# 显示
成功创建 /dev/sdb1
4. 格式化分区
# 使用 mkfs.xfs -f /dev/sdd1 命令进行格式化分区
[root@gaia ~]# mkfs.xfs -f /dev/sdb1
meta-data=/dev/sdb1 isize=512 agcount=4, agsize=655296 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=2621184, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
5. 挂载
5.1 挂载临时分区
# 使用 mount -t xfs /dev/sdd1 /DATA 命令进行磁盘挂载。把新加入的磁盘分区挂载到/DATA目录下
# 在根目录下创建文件夹”DATA“
[root@gaia /]# mkdir DATA
[root@gaia ~]# mount -t xfs /dev/sdb1 /DATA
[root@gaia ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 46G 1.5G 44G 4% /
devtmpfs 1.9G 0 1.9G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 1.9G 12M 1.9G 1% /run
tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup
/dev/sda1 1014M 146M 869M 15% /boot
tmpfs 378M 0 378M 0% /run/user/0
/dev/sdb1 10G 33M 10G 1% /DATA
5.2 开启自动挂载分区
# 编辑 /etc/fstab 加入自动挂载语句
[root@gaia ~]# vi /etc/fstab
/dev/sdb1 /DATA xfs defaults 0 0
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