Hi @Frances_Chu ,
Based on your scenario, you can likely use Index Lifecycle Management (ILM) for both types of indices, but you'll need different approaches.
Here are some supporting links:
- Configure a lifecycle policy | Elastic Docs
- Migrate index allocation filters to node roles | Elastic Docs
- Tutorial: Automate rollover | Elastic Docs
- Index lifecycle management | Elastic Docs
It would also be good, for colleagues' suggestions, if you could mention which version you're using.