Establishment and division of Linux logical volumes

Requirements Description

1. Add three disks with a size of 20GB SDC SDD SDE

2. convert three hard drives to physical volumes and establish SDC SDD two pv as

SIMPLE_VG The volume group and extends the SDE into the volume group

3. Create a logical volume named Simple_lv, size 30G, and set the logic

volume to establish the Ext4 file system. Mount to /simpletest directory

4. Extend the simple_lv to 50GB

5. Delete established logical volumes, volume groups, and physical volumes (in strict order of attention)

The steps are as follows:

• Fdisk–l View Current disk condition, we will see BCDE Four disk, size is 20G

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• View the physical volume that is currently present

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• Create Physical volume (PV)

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• Create a volume group (VG) named SIMPLE_VG

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• Viewing volume groups

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• Extend the SDE into the volume group

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• you can see that the capacity of the volume group has increased to 80G

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• Establish a logical volume named SIMPLE_LV with a size of 30G (-N for the logical volume name and-L for the size of the logical volume to be established )

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• format the established logical volumesin EXT4 format

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• Mount a logical volume to view mount status

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• expanding the logical volume to 50G ( the size of the capacity extended to-L)

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• viewing logical Volume Information

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• At this point we look at the actual partition occupancy and find that the file system partition for the logical volume has not changed

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• We need to expand the file system at this point

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• Finally, the established logical volume / volume Group / physical volume is deleted

Cancel mount, delete logical volume first

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• Delete a volume group

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• Delete a physical volume

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At this point, the experiment is complete.

Environment:VMware 11

System:CentOS 6.5

This article is from the "Cellen" blog, make sure to keep this source http://cellen.blog.51cto.com/1401366/1882041

Establishment and division of Linux logical volumes