High Availability using Proxmox

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Only the application virtual machines were added to the Proxmox High Availability manager. Database VMs were intentionally left unmanaged because abrupt automatic migration of database servers may lead to data inconsistency.

The HA configuration provides:

  • Automatic restart after failure

  • Automatic migration when a node becomes unavailable

  • Recovery monitoring

  • Centralized VM management

This approach allows the application tier to recover quickly while preserving the database tier as a separate and more controlled layer.

A view of the HA configuration in Proxmox is shown below:

Datacenter
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  v
HA
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  v
Resources

Insert a screenshot of the Proxmox HA resources page here to document the actual configuration view.

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