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Centos 7 挂载新硬盘，设置为XFS文件系统
初始配置的服务器硬盘容量为1T，进行 WRF/Chem 数值模拟明显容量不够，于是新增一块2T硬盘，挂载后，设置为XFS文件系统。据说此系统相对于之前的linux EXT3 EXT4等系统更为优秀。
Ref.
- 为什么CENTOS 7.0开始选择XFS作为默认的文件系统？XFS相比ext有什么优点？ - wangsl的回答 - 知乎
https://www.zhihu.com/question/24413471/answer/38883787 - linux xfs和ext4的区别
https://blog.csdn.net/nuli888/article/details/51870184
步骤如下
1. 查看当前磁盘信息
$ sudo fdisk -l //查看磁盘信息；
会有如下显示等:
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes, 1953525168 sectors
.
.
.
Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes, 3907029168 sectors
若有分区，会显示如下：
Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes, 3907029168 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: gpt
# Start End Size Type Name
1 2048 3907029134 1.8T Linux filesyste
2. 分区
执行如下命令：
$ sudo fdisk /dev/sdb
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
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.
Command (m for help):
输入m查看帮助
Command action
d delete a partition
g create a new empty GPT partition table
G create an IRIX (SGI) partition table
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
q quit without saving changes
s create a new empty Sun disklabel
w write table to disk and exit
删除分区，输入d，新建分区输入n，一路默认；
Command (m for help): n
Partition number (1-128, default 1):
First sector (34-3907029134, default 2048):
Last sector, +sectors or +size{K,M,G,T,P} (2048-3907029134, default 3907029134):
Created partition 1
w保存
Command (m for help): w
The partition table has been altered!
分区后状态如下
$ sudo fdisk -l
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes, 1953525168 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: gpt
# Start End Size Type Name
1 2048 2050047 1000M Windows recover
2 2050048 2582527 260M EFI System EFI system partition
3 2582528 2844671 128M Microsoft reser Microsoft reserved partition
4 2844672 254519295 120G Microsoft basic Basic data partition
5 254519296 464246783 100G Microsoft basic Basic data partition
6 464246784 506191871 20G Microsoft basic Linux data partition
7 506191872 506193919 1M BIOS boot parti
8 506193920 506603519 200M EFI System EFI System Partition
9 506603520 507627519 500M Microsoft basic
10 507627520 1953409023 689.4G Linux LVM
WARNING: fdisk GPT support is currently new, and therefore in an experimental phase. Use at your own discretion.
Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes, 3907029168 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: gpt
# Start End Size Type Name
1 2048 3907029134 1.8T Linux filesyste
3. 格式化分区为XFS
$ sudo mkfs.xfs -f /dev/sdb1
meta-data=/dev/sdb1 isize=256 agcount=4, agsize=122094597 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=488378385, imaxpct=5
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=238466, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
新分区如下:
$ sudo fdisk -l
Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes, 3907029168 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: gpt
# Start End Size Type Name
1 2048 3907029134 1.8T Linux filesyste
4. 挂载硬盘
先创建一个目录，然后将 /dev/sdb1 挂载到该目录下
$ sudo mount -t xfs /dev/sdb1 /home/disk2
5. 修改 /etc/fstab 来进行自动加载
加入下列行到/etc/fstab：修改 /etc/fstab 来进行自动加载，加入下列行到/etc/fstab：加入下列行到/etc/fstab：修改 /etc/fstab 来进行自动加载，加入下列行到/etc/fstab：
/dev/sdb1 /home/disk2 xfs defaults 0 0
Ref.
- linux下挂载新硬盘，设置为XFS文件系统
https://www.jianshu.com/p/e7485d3ecae1 - centos7 挂载新的硬盘
https://blog.csdn.net/u013919633/article/details/79016201