We currently have a DMS cluster, each agent has its own single Cassandra node (local or hosted on a separate external server).
For the migration towards Cassandra+OpenSearch Cluster, could we repurpose these external (single Cassandra node) servers specifically for the C+OS cluster?

In theory it sounds simple, reduce the resources of the current external VMs and with those resources create a new Linux VMs to be used for the C+OS cluster
However I'm not sure if this is a good way, if it's feasible or what kind of issues to expect.

I'm currently thinking of:

• Some downtime is expected to reduce the resources of the current VMs
• We should be vigilant when reducing the resources (compaction > requires extra disk space, page file > memory,...)
• It'll also depend on the physical hardware capacities