Capacity Advisor lets you test configuration changes before
actually making them in your data center, and helps you manage existing
resources to improve their utilization. For example, Capacity Advisor
assists you in answering questions such as the following:
Is there room on this system to support additional
work?
Will this workload fit on this system?
Can these servers be consolidated as virtual machines
on a single server?
Capacity Advisor obtains data for analysis from either of the
following:
HP Utilization WBEM Provider
OpenView Performance Agent (OVPA) data from
the managed systems (from the command line only)
Capacity Advisor enables you to collect data and create visualization
graphs of:
Capacity Advisor enables you to create scenarios for what-if
planning and forecasting, performing tasks such as the following:
Move workload between systems
View and disable scenario changes
Collect utilization data for workloads
Import existing workload profile
In the data collection infrastructure, each component plays
a role, as shown in Figure 2–1.
| 1 | Use the web browser to work with
Capacity Advisor and exploit its features. |
| 2 | Scenario data is stored automatically
in the scenario database. |
| 3 | Use the scenario editor to identify
workloads and systems for which to collect data. |
| 4 | Use the Report Generator to create
reports to examine. |
| 5 | The Utilization Calculator uses
historical data collected over time to create reports. |
| 6 | You can import OVPA data into
the historical database for analysis. |
| 7 | Automatic data conversion occurs when importing OVPA
data into the Capacity Advisor database. |
| 8 | Historical data is kept on the managed systems
and for two years on the Central Management Server (CMS). |
| 9 | VSE data on systems of interest
is available to the Capacity Advisor Data Collector. |
| 10 | The Data Collector gathers data
from the VSE database and includes it in the historical database. |
| 11 | The Utilization Provider enables use of the Data Collector. |
For additional information about Capacity Advisor and how it
fits into the Virtual Server Environment, refer to The
HP Virtual Server Environment, Dan Herington and Bryan
Jacquot, Hewlett-Packard Development Co., 2006.