1. Create a partition
Check to see if there are no partitions on the disk
Fdisk-l
The first box and the second box are the different disks that have been divided into a good area.
Start partition
#输入要进行分区的磁盘名称
Fdisk/dev/sdb
Enter m to see what actions are available
Enter P to view the current hard disk partition, which currently has a partition.
Enter N to create a new partition, enter p to create a partition, enter partition number 2 to create a second partition
Then let you set the start sector, directly to the enter to represent the non-input directly from the vacant Disk Start Section Start division
Then end the sector settings custom partition It 300G, can be divided according to their own needs. Note that the "+" setting must be in front of 300G to be valid.
If you want to continue to create a third partition, continue to enter N,p, and then define the partition size
Last Save partition Input W
Finally, check to see if the partition has been established! If a red area appears, it is already established.
In fact, this time, the establishment of a good partition can not be used, but also need to mount to use. But before it is mounted, it must be formatted before it can be done.
2. Formatting partitions
1) fdisk-l |grep SD View partition status
or fdisk-l.
2) Create data store directory, store path customization
Mkdir-p/openstack/glance
Mkdir-p/openstack/mysql
Mkdir-p/openstack/data
......
3) format the disk that you just partitioned
MKFS.XFS/DEV/SDB1 Formatting SDB1 disks
MKFS.XFS/DEV/SDB2 Formatting SDB2 disks
Mkfs.xfs/dev/sdb3
......
4) Vim/etc/fstab
/DEV/SDB1/OPENSTACK/GLANCE/XFS Defaults 0 0
/DEV/SDB2/OPENSTACK/MYSQL/XFS Defaults 0 0
/DEV/SDB3/OPENSTACK/DATA/XFS Defaults 0 0
/etc/ Fstab file is responsible for configuring the Linux boot automatically mount partition The first column can be the actual partition name or the actual partition's volume label (lable) The second column is the mount point, The mount point must be a directory that currently exists The third column is the file system type for this partition
auto: system automatically mounts, fstab default is this option Defaul TS: RW, suid, Dev, exec, auto, Nouser, and async. noauto Boot does not mount automatically nouser only Superuser can mount ro mount with read-only permission rw mount by read-write permission user Any user can mount the Note that the optical drive and floppy drive can be mounted only when the media is installed, so it is Noauto |
The fifth column is the dump backup setting, when its value is set to 1 o'clock, the dump backup program is allowed to be backed up, set to 0 o'clock, the backup operation is ignored, |
5) mount-a for disk mount
6) df-a View mount status
3. Solution Hanging
1) fdisk-l |grep SD View partition status
or fdisk-l.
2) Umount/dev/sdb3 lifting the Mount Sdb3 as an example
The solution hangs, actually can also mount, and the data will also be in the
4. Deleting a partition
Fdisk/dev/sdb m d 3 W
Input W save, this time partition and deleted, can be recreated.
Linux hard disk partition, partition, delete partition, format, mount, uninstall