HP Insight Global Workload Manager 6.3 User Guide

Setting up gWLM (initial setup steps)
Several of the configuration tasks require the same initial set-up steps. (Each task requiring these
steps indicates that the steps are needed.) These steps are given below.
NOTE: You must be logged in as root on the systems where you run the gwlmagent command
mentioned below.
1. Configure your CMS as indicated in the VSE Management Software Installation and Update
Guide, if you have not already done so.
2. On each managed node, start the gWLM agent (if it is not already running):
# /opt/gwlm/bin/gwlmagent
Alternatively, you can start the agents through HP SIM, as discussed in the VSE Management
Software Installation and Update Guide.
Changing from advisory mode to managed mode
Advisory mode allows you to see what CPU resource requests gWLM would make for a
workload—without actually affecting resource allocation. (Advisory mode is not available for SRDs
containing virtual machines, psets, or fss groups due to the nature of these compartments.) Managed
mode, however, allows gWLM to automatically adjust the resource allocations for your defined
workloads.
To change from one mode to the other:
NOTE: In HP SIM, you must be logged in as root or have authorizations for “All Tools” or
“VSE All Tools.”
NOTE: If you are changing from managed mode to advisory mode and you do not plan to
change back soon, be aware that gWLM leaves the npar and vpar and pset compartments with
the number of cores they had in the last allocation interval. Set the compartments to your desired
sizes before changing to advisory mode by associating fixed policies with all the compartments
and waiting for an allocation interval to pass.
1. Ensure HP SIM, the gWLM CMS daemon or service (gwlmcmsd) and all the gWLM agents
(gwlmagent) are still running, as explained in the section “Setting up gWLM (initial setup
steps)” (page 21).
2. Connect to HP SIM by pointing your web browser to:
http://hostname:280
where hostname represents the hostname of the CMS.
3. From the HP SIM menu bar, select:
Tools→Virtualization Manager...
and then click the Shared Resource Domain tab.
4. Select the SRD for which to change the mode.
5. From the VSE Management menu bar, select:
Modify→Shared Resource Domain
6. Change to the desired mode.
7. Click OK.
Common configuration tasks 21