After you have deployed and configured VMAN, begin monitoring your virtual environment for active or potential bottlenecks, allocation needs, or performance issues. Depending on the size of your virtual environment, the amount of data to review can be staggering. To help pinpoint problems and optimization opportunities, VMAN lists recommendations for VM balancing, troubleshooting, and issue resolution.
As you monitor your entire environment, you can review your recommendations through My Dashboard > Virtualization > Recommendations. Recommendations trigger for vCenter and Hyper-V hosts, ESX hosts, clusters, and VMs.
Every recommendation includes:
Through one page, you can investigate the issue, review the recommended resolutions, and apply the solution.
Want to see it in action? Watch this video:
Recommendation strategies look at the environment to solve specific issues and adjust allocations, performance, and storage. The strategies help manage VM sizing, host storage, and performance:
Migrating VMs is only possible between hosts that are in the same cluster and have shared storage.
VMAN provides to types of recommendations: active and predictive.
Active recommendations provide immediate resolutions for triggered alerts and issues that have already occurred on your system. An active recommendation requires a minimum of 1 hour of historic data to trigger.
Example: You receive a memory utilization recommendation flagged as NOW on a host. The active recommendation immediately resolves the active issue when applied, properly balancing VMs to remove consumption issues.
Predictive recommendations provide advised actions based on historical data and usage trends. These actions require a minimum of 7 days of monitored VM data to trigger.
Example: You receive a space utilization recommendation. A predictive resolution indicates reallocation steps for resources to resolve the issue for the affected VM and any linked datastores.
The key to predictive recommendations is compiled data over time. Optimal recommendations trigger with over 4 weeks of accumulated data.
You can take one of the following actions for a recommendation:
Schedule Recommendation: select a date and time to complete the steps. The Recommendation moves from the Current tab to the Scheduled tab. You may want to schedule the changes for maintenance times.
To manage recommendations: