centos7 添加xfs硬盘

fdisk -l
fdisk /dev/vdb
输入p打印  n新增分区 w保留
输入w保存
格式化磁盘:  
 mkfs.xfs /dev/vdb1 -fcd /
 mkdir data
 mount /dev/vdb1 /data/加入挂载分区:
 cp /etc/fstab /etc/fstab_bak
 vi /etc/fstab     /dev/vdb1 /data                  xfs     defaults        0 0
 
加入到文件fstab
 #########################################################
 #简洁操作全过程fdisk -l
fdisk /dev/vdb
 n
 p
 wmkfs.xfs /dev/vdb1 -f
cd /
 mkdir datamount /dev/vdb1 /data/
vi /etc/fstab    
 /dev/vdb1 /data                  xfs     defaults        0 0
 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#操作参考记录1:
[root@myhostname ~]# df -h
 Filesystem      Size  Used Avail Use% Mounted on
 /dev/vda1        20G  1.3G   18G   7% /
 devtmpfs        1.9G     0  1.9G   0% /dev
 tmpfs           1.9G     0  1.9G   0% /dev/shm
 tmpfs           1.9G  360K  1.9G   1% /run
 tmpfs           1.9G     0  1.9G   0% /sys/fs/cgroup
 tmpfs           380M     0  380M   0% /run/user/0
 [root@myhostname ~]# fdisk -lDisk /dev/vda: 21.5 GB, 21474836480 bytes, 41943040 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: 0x0008d73a   Device Boot      Start         End      Blocks   Id  System
 /dev/vda1   *        2048    41943039    20970496   83  LinuxDisk /dev/vdb: 107.4 GB, 107374182400 bytes, 209715200 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[root@myhostname ~]# 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 0xbb02c661.Command (m for help): p
Disk /dev/vdb: 107.4 GB, 107374182400 bytes, 209715200 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: 0xbb02c661   Device Boot      Start         End      Blocks   Id  System
Command (m for help): n
 Partition type:
    p   primary (0 primary, 0 extended, 4 free)
    e   extended
 Select (default p): p
 Partition number (1-4, default 1): 
 First sector (2048-209715199, default 2048): 
 Using default value 2048
 Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199): 
 Using default value 209715199
 Partition 1 of type Linux and of size 100 GiB is setCommand (m for help): w
 The partition table has been altered!Calling ioctl() to re-read partition table.
 Syncing disks.
 [root@myhostname ~]# mkfs.xfs /dev/vdb1 -f
 meta-data=/dev/vdb1              isize=512    agcount=4, agsize=6553536 blks
          =                       sectsz=512   attr=2, projid32bit=1
          =                       crc=1        finobt=0, sparse=0
 data     =                       bsize=4096   blocks=26214144, imaxpct=25
          =                       sunit=0      swidth=0 blks
 naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
 log      =internal log           bsize=4096   blocks=12799, version=2
          =                       sectsz=512   sunit=0 blks, lazy-count=1
 realtime =none                   extsz=4096   blocks=0, rtextents=0