查看磁盘信息
[root@iZ2ze8dv3a3meoltm5u25oZ ~]# fdisk -l Disk /dev/vda: 42.9 GB, 42949672960 bytes, 83886080 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: 0x000aaa23 Device Boot Start End Blocks Id System /dev/vda1 * 2048 83875364 41936658+ 83 Linux Disk /dev/vdb: 214.7 GB, 214748364800 bytes, 419430400 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
磁盘分区,直接分一个区
[root@iZ2ze8dv3a3meoltm5u25oZ ~]# 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 0xdfad3836. 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 (2048-419430399, default 2048): Using default value 2048 Last sector, +sectors or +size{K,M,G} (2048-419430399, default 419430399): Using default value 419430399 Partition 1 of type Linux and of size 200 GiB is set Command (m for help): wq The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
格式化
[root@iZ2ze8dv3a3meoltm5u25pZ ~]# mkfs.ext4 /dev/vdb1 mke2fs 1.42.9 (28-Dec-2013) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 13107200 inodes, 52428544 blocks 2621427 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=2199912448 1600 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, 7962624, 11239424, 20480000, 23887872 Allocating group tables: done Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done
磁盘挂载,在/home目录下
[root@iZ2ze8dv3a3meoltm5u25pZ ~]# echo /dev/vdb1 /home ext4 defaults 0 0 >> /etc/fstab
重启系统验证
[root@iZ2ze8dv3a3meoltm5u25oZ ~]# df -h Filesystem Size Used Avail Use% Mounted on devtmpfs 3.7G 0 3.7G 0% /dev tmpfs 3.7G 0 3.7G 0% /dev/shm tmpfs 3.7G 440K 3.7G 1% /run tmpfs 3.7G 0 3.7G 0% /sys/fs/cgroup /dev/vda1 40G 1.8G 36G 5% / /dev/vdb1 197G 61M 187G 1% /home tmpfs 756M 0 756M 0% /run/user/0
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