Owner's Manual

238 Frequently Asked Questions
Performance Monitoring
I have discovered a device
by specifying the
IP address in the range.
The system rebooted and
received a new IP address.
Though the IP address is
in the range, why is the
Status displaying the
system as down?
IT Assistant uses the IP address supplied only during
discovery for all operations, such as, Status,
Troubleshooting, Ta sk s, and so on. If the IP addresses
used for discovery is unavailable or changed (due to
Dynamic Host Configuration Protocol re-allocation), the
Status will display the system as down.
Discover the device again from the range that contains
the updated IP address for the device.
Why do the VMware ESX
systems get discovered as
Unknown devices in the
IT Assistant device tree?
If you have VMware ESX Server version 4.0 and later
installed, you must re-configure the SNMP service on the
VMware ESX system. See “Setting Up SNMP on VMware
ESX Server 4.0 and Later For Discovery.”
In the Devices tree, there
are devices grouped as
Unknown devices. What
are these device?
To know the details of the device that is discovered under
Unknown devices, right-click on the unknown device and
launch the application.
Question Answer
I have scheduled my performance
monitoring tasks with an interval of
2 minutes. The task, however, does not
fetch all samples at equal intervals.
The delay in fetching samples can be caused
due to various reasons, such as, low memory
or high processor utilization on the
IT Assistant management station.
I am unable to see the information
about the memory attribute in
Execution Results pane of the task.
If an attribute is not supported on the
remote device (managed system),
information about the attribute will not
display in the Execution Results pane of the
task and the Performance tab on the Device
view. Also, this attribute is not considered
for status calculations.
Question Answer