Scheduling Data Collection

Scheduling data collection to happen regularly is part of getting the most out of Capacity Advisor. With regularly collected data, comparing workload activity on different systems and at different times will make the most sense. If data is collected sporadically, it may be difficult to understand how moving a workload will impact the systems where it will run. The great power of using Capacity Advisor is unleashed when it has plenty of consistently collected data to work on.

You can schedule data collection with Capacity Advisor using Collect Capacity Advisor Data ALL for All VSE Resources or Collect Capacity Advisor Data... for any selected set of systems. HP recommends that you schedule data collection for all systems each day to ensure that you have sufficient data for analysis. To insure this, starting with VSEMgr 3.0, a task, described next in Automatic Data Collection for All VSE Resources, is created during configuration; this task runs each night to collect utilization data.

Automatic Data Collection for All VSE Resources

During configuration of VSE Management software, a scheduled task named “Collect ALL Capacity Advisor Data Nightly” is created to automatically collect utilization data from all your discovered VSE resources. This task is owned by the “root” user and runs once each day at 12:00 AM (midnight). This ensures that your utilization data is collected regularly and in a timely manner for all your VSE resources.

This task runs the menu action OptimizeCapacity AdvisorCollect Capacity Advisor Data with a target selection of the All VSE Resources query collection as the scheduled task.

Because this task is owned by “root”, only the “root” user will see the task and its results. When logged into the web interface, the root user can execute the menu action Tasks & LogsView All Scheduled Tasks... to perform any of the following actions:

Collecting Data for a Workload with a HP Serviceguard Package

Starting with VSEMgr 3.0, users will be able to associate a VSE-monitored workload with a Serviceguard package. This association will allow VSE Virtualization Manager to show workloads moving from one system to another within minutes of the Serviceguard migration. It will also allow Capacity Advisor to show an uninterrupted history of utilization data for a workload across these migrations.

Associating VSE monitored workloads and Serviceguard packages requires that VSEMgr V3.0 has been installed on the Central Management Server (CMS) and that the corresponding version of the Utilization Provider has been installed on all member systems of the Serviceguard cluster. All nodes of the cluster must be running the appropriate version of the Utilization Provider. For specific versioning information, see the HP Systems Insight Manager screen: Help About HP Systems Insight Manager.

	NOTE: In some situations, where time or time zones on a server are incorrect, it may appear that data collected has only old data. For more information on this topic, see the Capacity Advisor Error Messages appendix in this document.