Workload Balancing makes recommendations to rebalance, or optimize, the virtual machine workload in your environment based on a strategy for placement you select known as the optimization mode.
Maximize Density. Workload Balancing attempts to fit as many virtual machines as possible onto a physical host. The goal is to minimize the number of physical hosts that must be online.
When you select Maximize Density as your placement strategy, you can specify rules similar to the ones in Maximize Performance. However, Workload Balancing uses these rules to determine how it can pack virtual machines onto a host. When Maximize Density is your placement strategy, Workload Balancing recommends optimization when a virtual machine reaches the Critical threshold.
Workload Balancing also lets you apply these optimization modes all of the time, Fixed, or switch between modes for specified time periods, Scheduled.
Fixed optimization modes set Workload Balancing to a specific optimization behavior - either to try to create the best performance or the highest density - at all times.
Scheduled optimization modes let you schedule for Workload Balancing to apply different optimization modes depending on the time of day. For example, you might want to configure Workload Balancing to optimize for performance during the day when you have users connected and then, to save energy, specify for Workload Balancing to optimize for Maximum Density at night.
When you configure Scheduled optimization modes, Workload Balancing automatically changes to the optimization mode at the beginning of the time period—day of the week and time—you specified.
To re-enable a task, right click the task in the Scheduled Mode Changes list.