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68 lines
2.7 KiB
Plaintext
68 lines
2.7 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * virt/about_virt/about-virt.adoc
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:_mod-docs-content-type: REFERENCE
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[id="virt-vmware-comparison_{context}"]
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= Comparing {VirtProductName} to {vmw-full}
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[role="_abstract"]
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If you are familiar with {vmw-first}, the following table lists {VirtProductName} components that you can use to accomplish similar tasks.
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However, because {VirtProductName} is conceptually different from {vmw-short}, and much of its functionality comes from the underlying {product-title}, {VirtProductName} does not have direct alternatives for all {vmw-short} concepts or components.
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.Mapping of {vmw-short} concepts to their closest {VirtProductName} counterparts
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[options="header"]
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[cols="2,2,3"]
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|===
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|{vmw-short} concept |{VirtProductName} |Explanation
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|Datastore
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a|Persistent volume (PV)
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Persistent volume claim (PVC)
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|Stores VM disks. A PV represents existing storage and is attached to a VM through a PVC. When created with the `ReadWriteMany` (RWX) access mode, PVCs can be mounted by multiple VMs simultaneously.
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|Dynamic Resource Scheduling (DRS)
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a|Pod eviction policy
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Descheduler
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|Provides active resource balancing. A combination of pod eviction policies and a descheduler allows VMs to be live migrated to more appropriate nodes to keep node resource utilization manageable.
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|NSX
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a|Multus
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OVN-Kubernetes
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Third-party container network interface (CNI) plug-ins
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|Provides an overlay network configuration. There is no direct equivalent for NSX in {VirtProductName}, but you can use the OVN-Kubernetes network provider or install certified third-party CNI plug-ins.
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|Storage Policy Based Management (SPBM)
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|Storage class
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|Provides policy-based storage selection. Storage classes represent various storage types and describe storage capabilities, such as quality of service, backup policy, reclaim policy, and whether volume expansion is allowed. A PVC can request a specific storage class to satisfy application requirements.
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a|vCenter
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vRealize Operations
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|OpenShift Metrics and Monitoring
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|Provides host and VM metrics. You can view metrics and monitor the overall health of the cluster and VMs by using the {product-title} web console.
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|vMotion
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|Live migration
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|Moves a running VM to another node without interruption. For live migration to be available, the PVC attached to the VM must have the `ReadWriteMany` (RWX) access mode.
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a|vSwitch
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DvSwitch
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a|NMState Operator
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Multus
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|Provides a physical network configuration. You can use the NMState Operator to apply state-driven network configuration and manage various network interface types, including Linux bridges and network bonds. With Multus, you can attach multiple network interfaces and connect VMs to external networks.
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|===
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