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1磁盘分区
[root@localhost ~]# 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.
Command (m for help): p
Disk /dev/sdb: 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: 0xfdf10f13
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): 1
First sector (2048-41943039, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): 10G
Value out of range.
Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): +10G
Partition 1 of type Linux and of size 10 GiB is set
Command (m for help): n
Partition type:
p primary (1 primary, 0 extended, 3 free)
e extended
Select (default p): p
Partition number (2-4, default 2): 2
First sector (20973568-41943039, default 20973568):
Using default value 20973568
Last sector, +sectors or +size{K,M,G} (20973568-41943039, default 41943039):
Using default value 41943039
Partition 2 of type Linux and of size 10 GiB is set
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
2磁盘格式化XFS
[root@localhost ~]# mkfs.xfs /dev/sdb2
meta-data=/dev/sdb2 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
[root@localhost ~]# mkfs.xfs /dev/sdb1
meta-data=/dev/sdb1 isize=512 agcount=4, agsize=655360 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=2621440, 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
3查看磁盘UUID
[root@localhost ~]# blkid /dev/sdb1
/dev/sdb1: UUID="bb907eb7-27a4-4851-801e-77e6e22c84b9" TYPE="xfs"
[root@localhost ~]# blkid /dev/sdb2
/dev/sdb2: UUID="2595392c-1380-4e71-8c8a-dbd56b9f242e" TYPE="xfs"
[root@localhost ~]#
4使用UUID，是为了防止服务器重启磁盘设备名会变化
[root@localhost ~]# vim /etc/fstab
#/etc/fstab
#Created by anaconda on Thu Mar 9 09:52:36 2017
#
#Accessible filesystems, by reference, are maintained under '/dev/disk'
#See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/cl-root / xfs defaults 0 0
UUID=9f06433e-f33c-457a-912e-fcbb8d3daef3 /boot xfs defaults 0 0
/dev/mapper/cl-swap swap swap defaults 0 0
UUID="bb907eb7-27a4-4851-801e-77e6e22c84b9" /data xfs defaults 0 0
UUID="2595392c-1380-4e71-8c8a-dbd56b9f242e" /backup xfs defaults 0 0
5挂载
[root@localhost ~]# mount -a
6检查
[root@localhost ~]# df -HT
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/cl-root xfs 19G 1.5G 17G 9% /
devtmpfs devtmpfs 501M 0 501M 0% /dev
tmpfs tmpfs 512M 0 512M 0% /dev/shm
tmpfs tmpfs 512M 7.0M 506M 2% /run
tmpfs tmpfs 512M 0 512M 0% /sys/fs/cgroup
/dev/sda1 xfs 1.1G 146M 919M 14% /boot
tmpfs tmpfs 103M 0 103M 0% /run/user/0
/dev/sdb1 xfs 11G 34M 11G 1% /data
/dev/sdb2 xfs 11G 34M 11G 1% /backup