many small data devices or a few large ones
I'm working on re-laying out my RHEV environment to clean up years of mis-management. Would it be better to recreate the storage domains with many small volumes, 1TB or so, or a few large volumes, 5-10TB?
Responses
What are the characteristics of your environment? How many hosts, templates and Vm's? What is the average size and lifetime of templates and VM's?
In our Continuous Integration setup, we have many, short-living Vm's and many, large templates. We experienced bottlenecks in the RHEVM-SPM communication and scaled by creating multiple RHEVM instances each with 8 hypervisors and a single virtual data center, cluster and storage domain.
With long-living VM's and identical performance requirements, the RHEVM-SPM will not be a bottleneck and a single data center, cluster and storage domain will be easier to manage. When you have different performance requirements, you could create for example an SSD based storage domain for your high-end VM's.
Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.
