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A check disk space (df -h convenient way of reading the display [but calculation formula, 1K = 1000, rather than 1K = 1024])
[root@MyServer ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
//文件系统 1K-块 已用 可用 已用% 挂载点
/dev/mapper/VolGroup-lv_root 8780808 7038920 1295836 85% /
tmpfs 1987056 16 1987040 1% /dev/shm
/dev/xvda1 495844 32680 437564 7% /boot
/dev/xvdb 72248648 1487312 67091320 3% /home/webSecond, the inode mode to display disk usage
[root@MyServer ~]# df -i
Filesystem Inodes IUsed IFree IUse% Mounted on
//文件系统 Inode (I)已用 (I)可用 (I)已用% 挂载点
/dev/mapper/VolGroup-lv_root 558624 142630 415994 26% /
tmpfs 496764 5 496759 1% /dev/shm
/dev/xvda1 128016 38 127978 1% /boot
/dev/xvdb 4587520 27112 4560408 1% /home/webThird, view the disk information (if df check out the information on the disk fdisk -l and check out the dozens gap G, illustrate the disk does not spend)
[root@localhost ~]# fdisk -l //磁盘命令
Disk /dev/sda: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c4cb5
Device Boot Start End Blocks Id System
/dev/sda1 * 1 64 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 64 2611 20458496 8e Linux LVM
Disk /dev/sdb: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xd0f5c869
Device Boot Start End Blocks Id System
/dev/sdb1 1 2610 20964793+ 83 Linux
Disk /dev/sdc: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
You can see this machine loaded with three disks sda, sdb, sdc
which is the initial disk sda, sdb has been initialized and after use, sdc is just loaded, new unformatted disk
Fourth, create a new hard disk partition
[root@localhost ~]# fdisk /dev/sdc #进入磁盘
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x45a3cadb.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): m
Command action
a toggle a bootable flag #设定可启动标记
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition #删除一个分区
l list known partition types #各分区类型所对应的ID
m print this menu #菜单
n add a new partition #添加一个分区
o create a new empty DOS partition table
p print the partition table #显示该磁盘下的当前分区信息
q quit without saving changes #不保存退出
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit #保存退出
x extra functionality (experts only)
After know that the order can be carried partition
Command (m for help): p //打印分区信息,可以看到当前并没有分区
Disk /dev/sdc: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x45a3cadb
Device Boot Start End Blocks Id System
Command (m for help): n //创建一个新的分区
Command action
e extended//输入e为创建扩展分区
p primary partition (1-4) //输入p为创建逻辑分区
p
Partition number (1-4): 1//划分逻辑分区
First cylinder (1-2610, default 1): //我这里直接回车,是不想把该磁盘分成多个分区,把整个磁盘作为1个分区
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-2610, default 2610):
Using default value 2610
Command (m for help): p //再次查看可以看到该磁盘已经有1个分区了
Disk /dev/sdc: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x45a3cadb
Device Boot Start End Blocks Id System
/dev/sdc1 1 2610 20964793+ 83 Linux
Command (m for help): w //保存分区
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
Use "fdisk -l" command to view disk information again
Disk /dev/sdc: 21.5 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x406a4c58
Device Boot Start End Blocks Id System
/dev/sdc1 1 2610 20964793+ 83 Linux
The third block of disk / dev / sdc partition has been good
Fifth, format the partition
[root@localhost ~]# mkfs.ext3 /dev/sdc1
//将/dev/sdc1格式化为ext3类型,好像大部分的磁盘都是格式化为ext3类型,具体为什么没有深入研究,暂时不清楚,想了解的朋友可以自己查一下
[root@localhost ~]# mkfs.ext3 /dev/sdc1
mke2fs 1.41.12 (17-May-2010)
文件系统标签=
操作系统:Linux
块大小=4096 (log=2)
分块大小=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
1310720 inodes, 5241198 blocks
262059 blocks (5.00%) reserved for the super user
第一个数据块=0
Maximum filesystem blocks=4294967296
160 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
正在写入inode表: 完成
Creating journal (32768 blocks): 完成
Writing superblocks and filesystem accounting information: 完成
This filesystem will be automatically checked every 31 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
Formatting is completed, then you can use the "mount" command to mount the partition, and then use the disk space
Sixth, mount the partition and boot automatically mount
[root@localhost ~]# df -h //此时只有sda1和sdb1两个磁盘挂载
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root 18G 15G 1.5G 92% /
tmpfs 932M 76K 932M 1% /dev/shm
/dev/sda1 485M 40M 421M 9% /boot
/dev/sdb1 20G 1.2G 18G 7% /disk/diskone
/dev/sr0 4.2G 4.2G 0 100% /media/CentOS_6.5_Final
[root@localhost /]# cd /disk/
[root@localhost disk]# ll
总用量 4
drwxr-xr-x. 4 root root 4096 7月 28 17:04 diskone
[root@localhost disk]# cd diskone/
[root@localhost diskone]# ll
总用量 20
drwx------. 2 root root 16384 7月 28 16:12 lost+found
drwxr-xr-x. 2 root root 4096 7月 28 17:09 software
[root@localhost diskone]# cd ../
[root@localhost disk]# mkdir disktwo //创建被挂载的路径
[root@localhost disk]# ll
总用量 8
drwxr-xr-x. 4 root root 4096 7月 28 17:04 diskone
drwxr-xr-x. 2 root root 4096 8月 1 16:48 disktwo
[root@localhost disk]# mount /dev/sdc1 /disk/disktwo/ //进行挂载
[root@localhost disk]# df -h //再次查看,发现sdc1已经挂载在/disk/disktwo路径下
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root 18G 15G 1.5G 92% /
tmpfs 932M 76K 932M 1% /dev/shm
/dev/sda1 485M 40M 421M 9% /boot
/dev/sdb1 20G 1.2G 18G 7% /disk/diskone
/dev/sr0 4.2G 4.2G 0 100% /media/CentOS_6.5_Final
/dev/sdc1 20G 173M 19G 1% /disk/disktwo
Disk has been mounted on the
following set boot automatically mount
edit / etc / fstab file, and then add the final surface
/ dev / sdc1 (partition) / disk / disktwo (mount directory) ext3 (file format) defaults 0 0
vim /etc/fstab
/dev/sdc1(磁盘分区) /disk/disktwo（挂载目录） ext3（文件格式）defaults 0 0
After the restart thousand million! ! !