HP Matrix Operating Environment Software - Manual (Page 118)

generated by template, or a combination, depending on what targets you selected. When a
combination of servers are chosen, the placement of workloads goes first to existing servers and
then to template-generated “what-if” servers
Resource capacity. Workloads that specify utilization limits for a metric (for example, memory
or disk I/O) can only be placed on resources that define a capacity for the corresponding metric.
In other words, if you specified that a workload never exceed 100% memory utilization, that
workload can only be placed on a system for which total memory capacity is known.
Utilization limits. Every workload selected must have at least one utilization limit applied before
using the Smart Solver. This can be any type of utilization limit, including the default global
utilization limit.
Headroom rating The headroom rating shows the amount of available resource above the
existing resource utilization that will exist for the resulting solution in the simulation. Among
the solutions that require the same target systems, the solution with the tightest fit is shown.
Possible anomalies in the results
Fewer systems shown. The Smart Solver solution can contain fewer destination servers than
were originally selected. This occurs when the workloads fit on fewer servers than originally
selected. For example, if servers A, B, and C are selected as destinations, but all the workloads
can fit onto servers A and B, then only servers A and B are shown in the solution.
Systems involved in load balancing. When load balancing is performed, the loads are balanced
only across the resulting systems in the solution. For example, if only servers A and B are used
(and server C is not), then load balancing is performed only across servers A and B. Server C is
not included for the load balancing calculation.
Return to a planning checklist:
• Determining where to put a workload using automated solution finding
Getting more detail
In addition to the solutions shown, you can do the following with the solution:
1. Expand the sections using the + box on the right-hand side of the desired section.
2. Mouse over the headroom ratings (the stars) to obtain more rating detail.
3. Save the solution under a different scenario name and then use the Scenario Comparison
Report
feature to compare the scenario differences.
118 Procedures