Explore vCenter Maximum Host in Different Versions
What is the maximum number of vCenter hosts? Knowing the direct number will help you to manage the virtual environment in vCenter, and also ensure that vCenter Server continues to perform optimally in your environment.
Quick question about vSphere/vCenter (max amount of hosts)
I got an interesting question, which I could not really find the right answer to (including the TCO calculator can only go up to 5000 hosts)... what is the maximum number of hosts it can take in one cluster/DC? I am familiar with it, but in my current company, I am wondering if it would be able to manage ~500k cores.
- Question from Reddit
VMware vCenter Server enables centralized management and monitoring of virtualized environments and provides a centralized platform for hosts. This article will give you the direct number of how many hosts can vCenter manage, and the factors that may influence the host limits.
How Many Hosts Can vCenter Manage
The vCenter maximum hosts depend on the version of vCenter Server, and the number of hosts that can be managed varies from version to version to ensure that the platform runs efficiently. You can first check the vCenter version, and then ensure the vCenter maximum hosts. The following is a list of the vCenter maximum hosts per cluster that can be managed by different versions.
vCenter Version |
vCenter Edition |
Maximum Hosts per vCenter |
Maximum Hosts per Cluster |
Maximum VMs per vCenter |
Maximum VMs per Host |
vCenter 6.0 |
vCenter Server Standard |
1000 |
64 |
10000 |
1024 |
|
vCenter Server Foundation |
4 |
32 |
250 |
512 |
|
vCenter Server Essentials |
3 |
N/A |
100 |
512 |
vCenter 6.5 |
vCenter Server Standard |
2000 |
64 |
25000 |
1024 |
|
vCenter Server Foundation |
4 |
32 |
300 |
512 |
|
vCenter Server Essentials |
3 |
N/A |
200 |
512 |
vCenter 6.7 |
vCenter Server Standard |
2000 |
64 |
35000 |
1024 |
|
vCenter Server Foundation |
4 |
32 |
400 |
768 |
|
vCenter Server Essentials |
3 |
N/A |
200 |
768 |
vCenter 7.0 |
vCenter Server Standard |
2000 |
96 |
35000 |
1024 |
|
vCenter Server Foundation |
4 |
64 |
400 |
768 |
|
vCenter Server Essentials |
3 |
N/A |
200 |
768 |
Factors Influencing Host Limits
The following are several factors thatcan impact the management of hosts through vCenter.
1. Resource Utilization
The more VMs running on a host, the more resource contention it has, which affects the number of hosts that can be managed.
2. Database Performance
As the number of hosts increases, the load on the vCenter Server database used to store configurations, data, and events also increases, which could affect its performance.
3. Network Infrastructure
Insufficient bandwidth or excessive latency affects vCenter's ability to effectively manage hosts.
Efficiently Manage Large Numbers of Virtual Machine in VMware
If vCenter manages an excessive number of hosts, it can cause performance issues, database strain, and other problems that can ultimately threaten data security. For this reason, it is important to have backup software that not only protects data security but also manages numerous virtual machines.
AOMEI Cyber Backup is a professional VMware backup software that enables you to back up multiple virtual machines managed by vCenter Server or on a standalone ESXi host. AOMEI Cyber Backup also provides you with the following features and benefits.
🔆Automated Backup: It provides you with the ability to configure a backup schedule where backup tasks will be executed automatically at a specified time.
🔆Multiple VM Backup: It can batch backup a large number of virtual machines managed by vCenter Server or multiple virtual machines on a standalone ESXi host.
🔆Retention Policy: It allows deleting the unwanted or expired backups to save storage.
🔆Flexible Storage Destination: It allows to storage backups to local drives, network locations, or cloud storage.
🔆Automated Execution: It can create backup schedules to automate backup daily, weekly, or monthly.
4 Easy Steps to Create Auto Backup for Multiple VMs in vCenter Server
Step 1. Bind Device: First, access to AOMEI Cyber Backup web client, then navigate to Source Device > VMware and click + Add VMware Device to add a host. Then enter the required information, including Device Information and User Information, after finishing, click Confirm to bind the device.
Step 2. Create Backup Task: Navigate to Backup Task and click + Create New Task, then select VMware ESXi Backup as the Backup Type.
Step 3. Set up the Task Name, Device, Target, Archive, Schedule, and Cleanup according to your needs.
▶Task Name: You can use the default name, or change the task name that you want.
▶Device: Batch selected VMs managed by vCenter Server for centralized backup.
▶Target: You can select to backup to a local path, or to a network path.
▶Archive: You can easily backup VMware to AWS by enabling the archive feature.
▶Schedule: It can perform full, differential, or incremental backup, and automate according to the specified frequency.
▶Cleanup: It can automatically delete the old backup copies that exceed the retention period you specified.
Step 4. Start Backup: Click Start Backup and select Add the schedule and start backup now, or Add the schedule only.
Step 5. Restore: Click Restore to restore the virtual machine from backup. Select a VM backup and click Restore to new location, or Restore to original location.
Conclusion
vCenter's ability to manage a large number of hosts is an advantage, but it also poses certain risks and challenges once the maximum number is exceeded, so with an understanding of vCenter maximum hosts, it is important to efficiently manage VMware virtual environments as administrators are able to perform proper maintenance. Also, the further protection of data in virtual machines at AOEMI Cyber Backup can make the management of vCenter more reliable.