A reliable industry-proven hypervisor is a critical foundation of a virtualized infrastructure but is not a complete solution by itself. You need an IT services platform that delivers the right infrastructure and application services for running your business – a private cloud. It must include built-in migration, aggregation, allocation, power management, and availability services.
VMware vSphere is the only virtualization platform that delivers all of these built-in services.
- Live Migration: Transparent Agility
- Aggregation: Shared Pools of Resources
- Allocation: Elastic Pool of Resources
- Power Management: Intelligently Save Power
- Availability: Flexible, Uniform High Availability
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Power Management: Cluster-level Power Savings
VMware Distributed Power Management (DPM) continuously monitors resource requirements across a DRS cluster, consolidates workloads, and automatically powers down unused servers to reduce overall power consumption. This capability extends cost savings beyond what you can obtain from simple server consolidation.
Watch a technical video on: VMware Distributed Power Management and VMware vSphere
Based on user-defined policies, DPM monitors a DRS cluster and verifies whether service level agreements (SLAs) could be met at a lower power consumption rate. When an application workload increases, DPM re-activates the suspended hosts (via Wake-on-LAN, IPMI, or iLO). Neither Microsoft nor Citrix delivers functionality with this level of flexibility. Without this type of cluster-level power management, power management at the cluster-level is not possible. Microsoft Hyper-V R2 has a core parking feature that saves relatively less power because it only powers down individual processor cores. Also, a technology like DPM really needs memory overcommit support to be effective. VMware DPM and the memory overcommit capabilities in VMware ESX are a great match, because during periods of low utilization, high levels of overcommit are possible, letting you get by with the fewest servers running.
