When should I use WLM vs. gWLM?
HP-UX WLM is optimized to manage multiple workloads on a single system. It offers more in-depth management capabilities for customers who want to use customized policies in their environment. HP-UX WLM also does not require a central management server. HP Global Workload Manager (gWLM) was designed to manage multiple workloads on multiple systems. It requires a central management server, but can easily deploy straight-forward policies to multiple workloads providing simpler management. Also, the central management server provides centralized reporting. HP gWLM is optimized for a centralized IT department managing many servers.