Security

Can you increase the vCPUs (currently using the 8) after deployment? We're spiking like crazy (96-98%) on our primary throughout the day. I saw on an installation video that you cannot and would have to reprovision the VM and restore from backups. 

This should be handled with the TAC Team.

What you can do is, you can perform a fresh VM config and installation and then restore from Backup

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Shpat | ACEP | ACMP | ACCP | ACDP |
-Just an Aruba enthusiast and contributor by cases-
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You can power off the VM and increase vCPU / memory allocation and power it back on. One thing you cannot change post deployment is the disk size due to the fact that the disk is encrypted at the time of deployment.

Note that if you are meeting the recommended specs and still seeing high CPU load, might want to check if there is CPU over subscription on the VM host and might have to look at CPU reservation if needed. Otherwise, it could be something that needs TAC investigation.