VMware vSphere 8 Limitations

By | January 27, 2023

VMware vSphere 8 is a powerful virtualization platform that enables organizations to run multiple virtual machines on a single physical server. However, like any software, it does have certain limitations:

  1. VMware vSphere 8 is a virtualization platform that enables users to create, manage, and run virtual machines (VMs) on a single physical server or across a cluster of servers. The platform has various limitations that users need to consider when planning their virtual infrastructure.
  2. The first limitation is related to the number of VMs that can be deployed on a single host. In vSphere 8, the maximum number of VMs per host is 1024. However, this number can vary based on the resources allocated to each VM. For example, if a user creates VMs with high resource requirements, such as large amounts of RAM or CPU, the number of VMs per host may decrease.
  3. The second limitation is related to the maximum number of hosts in a vSphere 8 cluster. The maximum number of hosts in a vSphere 8 cluster is 64. However, this number may vary based on the resources available in each host and the workload of each VM.
  4. The third limitation is related to the maximum size of a VM disk. In vSphere 8, the maximum size of a VM disk is 62 TB. This size limitation applies to both virtual disks and raw device mapping (RDM) disks.
  5. The fourth limitation is related to the maximum number of vCPUs and vRAM that can be allocated to a VM. In vSphere 8, the maximum number of vCPUs per VM is 256, and the maximum amount of vRAM per VM is 24 TB. However, these limits may vary based on the host’s available resources.
  6. The fifth limitation is related to the maximum number of virtual NICs that can be assigned to a VM. In vSphere 8, the maximum number of virtual NICs per VM is 32.
  7. The sixth limitation is related to the maximum number of VMs that can be powered on per datastore. In vSphere 8, the maximum number of VMs that can be powered on per datastore is 2,000. However, this number may vary based on the size of the datastore and the resources available on the host.
  8. The seventh limitation is related to the maximum number of virtual disks that can be attached to a VM. In vSphere 8, the maximum number of virtual disks that can be attached to a VM is 60.
  9. In addition to these limitations, there are other considerations to keep in mind when using vSphere 8, such as the need for adequate storage and network bandwidth, proper backup and recovery strategies, and effective security measures.
  10. It is important to note that some of these limitations may be adjusted based on licensing and support agreements with VMware. Additionally, some of these limitations may be updated or changed in future releases of vSphere.

In summary, VMware vSphere 8 has various limitations that users need to consider when planning their virtual infrastructure. These limitations include the maximum number of VMs per host, the maximum number of hosts in a cluster, the maximum size of a VM disk, the maximum number of vCPUs and vRAM per VM, the maximum number of virtual NICs per VM, the maximum number of VMs that can be powered on per datastore, and the maximum number of virtual disks that can be attached to a VM. It is important to keep these limitations in mind when designing and managing virtual infrastructures with vSphere 8.

VMware vSphere 8 Cloud supported features:

VMware vSphere 8 is a powerful virtualization platform that enables organizations to run multiple virtual machines on a single physical server, which is also designed for cloud environments. Here are some of the cloud-supported features of vSphere 8:

Multi-cloud support: vSphere 8 provides multi-cloud support, allowing customers to easily deploy and manage applications across multiple clouds, such as AWS, Azure, and Google Cloud.

Kubernetes integration: vSphere 8 integrates Kubernetes, which enables customers to run containerized applications on vSphere and manage them using the Kubernetes API.

Enhanced vCenter Server: vSphere 8 provides an enhanced vCenter Server, which allows customers to manage and monitor their virtualized infrastructure from a single location.

Improved scalability: vSphere 8 supports a maximum of 64 physical CPUs and 12 TB of memory per host, and a maximum of 15 vCenter Server instances.

Improved security: vSphere 8 includes enhanced security features such as secure boot, secure boot for virtual machines, and TPM 2.0 support.

Improved network and storage: vSphere 8 supports a maximum of 4096 virtual switches per host and up to 4096 active ports per switch, and supports a maximum of 512 LUNs and 2048 virtual disks per host.

Cloud-native support: vSphere 8 supports cloud-native apps, providing the ability to run apps on Kubernetes clusters and manage them using the Kubernetes API.

vSphere with Tanzu: vSphere 8 supports vSphere with Tanzu, which enables customers to run Kubernetes clusters on vSphere and manage them using the Kubernetes API.

vSphere Distributed Resource Scheduler (DRS): vSphere 8 supports Distributed Resource Scheduler (DRS) which allows to balance the workloads across the clusters.

These features are designed to help organizations to simplify the deployment and management of their virtualized infrastructure in cloud environments, and to provide enhanced scalability, security, and performance.

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