HP Matrix Operating Environment Software - Manual (Page 17)

Combining the different policy types
Each workload in an SRD must have a policy. Starting with gWLM A.02.00.00.07, you can use
any combination of the policy types within an SRD.
Seeing how gWLM will perform without affecting the system
gWLM provides an advisory mode that allows you to see how gWLM will approximately respond
to a given SRD configuration—without putting gWLM in charge of your system’s resources.
Using this mode, you can safely gain a better understanding of how gWLM works. In addition,
you can check that your policies behave as expected—with minimal effect on the system.
Advisory mode is not available for SRDs containing virtual machines, psets, or fss groups due
to the nature of these compartments.
Once you are comfortable with an SRD, change its mode to Managed to let gWLM manage
resource allocation for the compartments in the SRD.
For information on changing modes, refer to “Changing from advisory mode to managed mode”
(page 22) .
Getting started with gWLM
gWLM is typically accessed through HP SIM. For information on the gWLM command-line
interface, see gwlm(1M).
After performing the necessary gWLM daemon (or service) configuration as described in the
VSE Management Software Installation and Update Guide, the quickest way to start using gWLM to
manage new systems is to use the Manage Systems and Workloads wizard, as described in the
following text.
Before you start the wizard though, decide:
• Which systems you want to manage with gWLM
• Whether you want to manage your workloads by migrating CPU resources among npars,
vpars, virtual machines, processor sets, or fss groups. (CPU resource migration among npars
with spare capacity is simulated using the HP Instant Capacity product, as explained in the
section
“The gWLM management model” (page 10) .)
Tabs and menus
The controls shown in Figure 2-1 appear at the top of the Global Workload Manager screen.
Figure 2-1 Top controls of the Global Workload Manager screen
1
2
3
1 The SIM menu bar
2 The Virtualization Manager tabs
3 The VSE Management menu bar
These menu bars will be referenced later.
Using the wizard
To start the wizard:
Seeing how gWLM will perform without affecting the system 17