About virtualization
Virtualization enables you to access the built-in CAS Cloud Virtualization Manager (CVM) and external virtualization platforms to obtain and manage their compute resource pools from CloudOS.
To manage the external compute resource pools from CloudOS for compute services, for example, to create cloud hosts, you must perform the following tasks:
Connect to the virtualization platforms to obtain information about their external compute resource pools.
Abstract the pools or clusters in the pools into compute nodes.
Create compute availability zones (AZs) on the compute nodes.
From the Virtualization menu, you can connect to external virtualization platforms, obtain information about their compute resource pools, and manage the resources in the pool to provide compute services. For information about creating compute AZs, see "Create a compute AZ."
The virtualization procedure is true of the built-in CAS CVM platform except that you do not need to configure settings for accessing it. CloudOS automatically adds its compute resource pool (cloudOS) in the system. You only need to add CAS CVK nodes.
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Cloud Automation System (CAS) is a distributed virtualization platform. It contains the Cloud Virtualization Manager (CVM) and Cloud Virtualization Kernel (CVK) components. CVM runs on the management hosts to manage virtualization of computing, network, and storage resources and provide automated services for upper layer applications. CVK runs between the guest OSs on cloud hosts and the underlying hardware on hosts for compute services. For more information about CAS, see CAS documentation. The system supports only CAS and VMware virtualization platforms. To ensure service continuity, follow these restrictions and guidelines: · Do not remove a physical server from an incorporated virtualization platform or change the physical server name if the physical server hosts VMs managed in CloudOS. · Do not change the name of a host pool, cluster, or vSwitch managed in CloudOS. · Do not change the management IP address of the virtualization platform. If you select CloudStor to provide back-end storage for a CAS compute node, you can only use the CloudStor E3313 version. To avoid unavailability of features such as cloud disks, do not turn on Storage Pool Level-2 Directory on CAS. |
Use Table-1 to identify the tasks that you must perform depending on your virtualization platform and goals.
Table-1 Selecting virtualization tasks
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Virtualization platform (Hypervisor) |
Goal |
Scenario |
Tasks |
|
CAS |
Obtain data from the virtualization platform. Control the maintenance mode of cloud hosts. |
The CAS system has deployed both CVK and CVM components. |
Configure virtualization settings. |
|
Use and manage resources on the virtualization platform. |
The CAS system has deployed both CVK and CVM components. |
Configure virtualization settings. Configure compute nodes. |
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Manage virtualized clusters and hosts. |
Only hosts installed with CVK are available. |
Add CVK clusters or hosts to the cloudOS cluster. |
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VMware |
Obtain data from the hypervisor. |
The virtualization platform deployment is complete. |
Configure virtualization settings. |
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Use and manage resources on the virtualization platform. |
The virtualization platform deployment is complete. |
Configure virtualization settings. Configure compute nodes. |
Virtualization management contains the following tasks:
View resource usage statistics
Manage virtualization settings