HP Capacity Advisor 7.2 User Guide

No network connectivity between the CMS and the managed node
This is often a source of errors, once a system has been configured and data collection is initially
working, but subsequently fails.
Suggested action: Check that the following situations have not occurred:
• Is the host shut down?
• Is the host hung, or otherwise not responding?
• Has the NIC or NIC driver on the host failed?
• Is a network cable unplugged from the host or switch?
• Are there other physical issues (for example, a port on a switch failing)?
• Are DNS and DHCP working correctly? (The system's IP address is not in use by another host,
for example.)
• Is a firewall blocking connectivity?
Incorrect credentials for the managed node
Suggested action: Confirm that system credentials are appropriate for the data collection method
and the operating system or hypervisor software. See the HP Matrix Operating Environment Getting
Started Guide for information on system credentials.
Unsupported data collection method for the managed node
Suggested action: Make sure the OS is supported for use with Matrix Operating Environment.
Collection agents or services are either not running or are hung on the
managed system or CMS
Suggested action: For systems using agentless and virtual machine management data collection,
make sure the corresponding services are running on the CMS and are not hung. If it is suspected
that they are hung, (because all the above situations are fine, but still no data), first try restarting
the individual services:
• For a Windows CMS, restart:
HP Agentless Data Collector Service (the agentless collector service for Windows systems)◦
◦ HP Agentless Collection for Linux Systems (the agentless collector service for Linux systems)
◦ HP Insight Control virtual machine management (the VMM service)
• For an HP–UX CMS, enter the following from the command line:
# /sbin/init.d/hp_cpdata_service stop
Stopping HP Agentless Collection for Linux Systems...
Waiting for HP Agentless Collection for Linux Systems to exit...
Stopped HP Agentless Collection for Linux Systems.
# /sbin/init.d/hp_cpdata_service start
Starting HP Agentless Collection for Linux Systems...
Started HP Agentless Collection for Linux Systems.
If restarting the service(s) does not work, try rebooting the CMS.
Using a shell other than the default assumed for communication on Linux
An unrecognized secure shell may be the problem when you see this message in the Utilization
Data Collection Event list:
Linux agentless data collection failed to return the expected output.
Data is not being collected 161