Host name aliases are not supported, Deleting workloads takes a long time – HP Matrix Operating Environment Software User Manual
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between cluster members. Thus, it is recommended that you not directly manage a workload
associated with a Serviceguard package.
Workaround
For all hosts to which a workload associated with a Serviceguard package might fail over, you
must apply a policy to an enclosing operating system instance (virtual partition or nPartition). You
can use a gWLM conditional policy to change the resource allocation depending on which packages
are present. This enables you to control the resource allocation of the enclosing operating system
instance and still monitor the workload via HP Matrix OE visualization.
Host name aliases are not supported
Host name aliases are not supported by gWLM. Only canonical DNS host names (fully qualified
domain names) are supported.
Workaround
Use only canonical DNS names when configuring gWLM through either System Insight Manager
or an XML file used with the gwlm command.
Making a configuration change to a large SRD is slow
Changes made to the configuration of a large SRD that is deployed might take a long time (several
minutes) to take effect.
Workaround
There is no workaround. The amount of time needed to complete a change depends on the time
it takes to communicate with all the compartments in the SRD.
Events for gWLM CPU migration can affect System Insight Manager CMS performance
The HP products System Fault Management (SFM) and Event Monitoring Service (EMS hardware
monitors in particular) generate events, or indications, when CPUs are migrated. Depending on
workload characteristics, gWLM can migrate CPUs rapidly. Over time, this frequent migration can
result in a high enough number of events that the performance of the System Insight Manager CMS
is adversely affected.
Workaround
The following options are available as workarounds:
Option 1
For systems managed by gWLM that are running HP-UX 11i v3, install the patches
PHCO_36126 and PHSS_36078. (These patches are included in the September
2007 Operating Environment Update Release.) A fix to EMS hardware monitors is
available with the September 2007 Operating Environment Update Release. Even
with these patches and fixes, there is still one event generated for each change in
CPU count.
For systems managed by gWLM that are running HP-UX 11i v2, upgrade to the June
2007 Operating Environment Update Release.
Option 2
Upgrade to System Insight Manager C.05.01.00.01.xx on the CMS. This version
of System Insight Manager does not, by default, subscribe to these events and will
not have a performance degradation.
Option 3
If you want to subscribe to events, set up automatic event purging in System Insight
Manager.
For more information about any of these workarounds, see the System Insight Manager
documentation (available from
).
Deleting workloads takes a long time
Once a request to delete a workload is issued, it can take a long time (several minutes) to complete
the deletion.
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Global Workload Manager A.7.0.0* Known issues