How many VMs can the HCI (2 nodes) have?

jkia Lv1Posted 13 Jun 2024 10:06

Provided that each virtual machine has 16GB of RAM and each HCI node has 96GB of RAM

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Hi, please consider that HCI needs resources to run, here some example resources for RAM

Critical system services : 5GB
Non Critical Services : 4GB
Virtual Storage Service : 15.71 GB
Virtual Network Service : 3.5 GB
Resource For hardware : 5.2 GB
Total system Reserved Memory : 33.4 GB

Total RAM : 96
Reserved RAM 34 GB
Available RAM :  96-34 = 62 GB

so, possible VM with RAM 16 GB total around 4 Virtual Machines per Nodes

this option only works if HA is not activated.

if HA is activated, total VM will be reduce depend on HA policy.

Better you add more physical RAM for each Nodes, so you are possible to add more VMs
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Enrico Vanzetto Lv4Posted 13 Jun 2024 14:54
  
Hi, you have to consider how much resource you have on hci nodes (cup, storage, disk space). I suggest you to not overprovisioning the virtual machines on your nodes as it can be impossibile to move vm to another node without resizing resources to each vm.
Prosi Lv3Posted 13 Jun 2024 13:56
  
Hi,

Select the HCI node that you want to add to cluster and input the corresponding username and password. Once a node is chosen, node icon turns green, which indicates that node can be added to the cluster.

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