KVM (10) Virtual machine storage Pool

This system CentOS 6.5 x64

The KVM platform manages storage in the form of a storage pool that can be understood as a local directory, allocated over a remote disk array (ISCSI, NFS), and, of course, a variety of distributed file systems.

The Virsh Pool command enables you to view, create, activate, register, and delete storage pools.

Note 1:KVM Storage pool is mainly a management mode, you can mount the storage directory, LVM logical volume to create a storage pool, virtual machine storage volume after the creation of the complete, the remaining operations and no storage volume of the way no difference.
Note 2:KVM storage pools are also used for virtual machine migration tasks.

This example uses a local directory to create a storage pool

1. Create a directory to create a storage pool

[Email protected]/]# Mkdir/data/vmdisk

2. Define Storage Pools

[[email protected]/]# virsh pool-define-as vmstoragepool--type dir--target/data/vmdisk/define pool Vmstoragepool

3. Create a storage pool

[[email protected]/]# Virsh pool-build vmstoragepool Build Pool Vmstoragepool

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4. Activate the storage pool and set up auto-start

[[email protected]/]# Virsh pool-start vmstoragepool[[email protected]/]# Virsh Pool-autostart vmstoragepool

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5. Create Virtual disk space (storage volume) in the storage pool

[Email protected] vmdisk]# Virsh vol-create-as vmstoragepool vmtest.qcow2 6G--format qcow2

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6. Create a virtual machine to point the storage space to the above disk space (storage volume)

Virt-install--name=vmtest--os-variant=rhel6--ram--vcpus=1--disk path=/data/vmdisk/vmtest.qcow2,format=qcow2, Size=6,bus=virtio--accelerate--cdrom=/iso/centos-6.5-x86_64-bin-dvd1.iso--vnc--vncport=5910--vnclisten=0.0.0.0 --network Bridge=br0,model=virtio--noautoconsole

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7. Additional management commands for storage pools

Delete storage space (storage volume) in the storage pool

[Email protected] vmdisk]# Virsh vol-delete--pool vmstoragepool vmtest.qcow2

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Deactivate a storage pool

[Email protected] vmdisk]# Virsh Pool-destroy vmstoragepool

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Delete the definition directory used by the storage pool

[Email protected] vmdisk]# Virsh pool-delete vmstoragepool

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The point is, the Vmdisk catalog is missing.

To cancel the definition of a storage pool

[Email protected] data]# Virsh pool-undefine vmstoragepool

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This article is from the "Big Wind" blog, please be sure to keep this source http://lansgg.blog.51cto.com/5675165/1690046

KVM (10) Virtual machine storage Pool