Users Guide

View sensor information For Using web interface Using RACADM
For more information, see the iDRAC
RACADM Command Line Interface
Reference Guide available at dell.com/
idracmanuals.
Fan
Overview > Hardware > Fans
CPU
Overview > Hardware > CPU
Memory
Overview > Hardware > Memory
Intrusion
Overview > Server > Intrusion
Power Supplies
Overview > Hardware > Power Supplies
Removable Flash Media
Overview > Hardware > Removable Flash
Media
Temperature
Overview > Server > Power/Thermal >
Temperatures
Overview > Server > Power/Thermal >
Voltages
Monitoring performance index of CPU, memory, and
IO modules
In Dell’s 13
th
generation Dell PowerEdge servers, Intel ME supports Compute Usage Per Second (CUPS) functionality. The CUPS
functionality provides real-time monitoring of CPU, memory, and I/O utilization and system-level utilization index for the system. Intel ME
allows out-of-band (OOB) performance monitoring and does not consume CPU resources. The Intel ME has a system CUPS sensor that
provides computation, memory, and I/O resource utilization values as a CUPS Index. iDRAC monitors this CUPS index for the overall
system utilization and also monitors the instantaneous utilization index of the CPU, Memory, and I/O.
NOTE
: This feature is not supported on PowerEdge R930 servers.
The CPU and chipset have dedicated Resource monitoring Counters (RMC). The data from these RMCs is queried to obtain utilization
information of system resources. The data from RMCs is aggregated by the node manager to measure the cumulative utilization of each of
these system resources that is read from iDRAC using existing intercommunication mechanisms to provide data through out-of-band
management interfaces.
The Intel sensor representation of performance parameters and index values is for complete physical system. Therefore, the performance
data representation on the interfaces is for the complete physical system, even if the system is virtualized and has multiple virtual hosts.
To display the performance parameters, the supported sensors must be present in the server.
The four system utilization parameters are:
• CPU Utilization — Data from RMCs for each CPU core is aggregated to provide cumulative utilization of all the cores in the system.
This utilization is based on time spent in active and inactive states. A sample of RMC is taken every six seconds.
• Memory Utilization — RMCs measure memory trac occurring at each memory channel or memory controller instance. Data from
these RMCs is aggregated to measure the cumulative memory trac across all the memory channels on the system. This is a measure
of memory bandwidth consumption and not amount of memory utilization. iDRAC aggregates it for one minute, so it may or may not
match the memory utilization that other OS tools, such as top in Linux, show. Memory bandwidth utilization that the iDRAC shows is an
indication of whether workload is memory intensive or not.
• I/O Utilization — There is one RMC per root port in the PCI Express Root Complex to measure PCI Express trac emanating from or
directed to that root port and the lower segment. Data from these RMCs is aggregated for measuring PCI express trac for all PCI
Express segments emanating from the package. This is measure of I/O bandwidth utilization for the system.
• System Level CUPS Index — The CUPS index is calculated by aggregating CPU, Memory, and I/O index considering a predened load
factor of each system resource. The load factor depends on the nature of the workload on the system. CUPS Index represents the
Viewing iDRAC and managed system information
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