Users Guide

Table 17. Sensor information using web interface and RACADM (continued)
View sensor information For Using web interface Using RACADM
Memory Dashboard > System Health >
Memory
Intrusion Dashboard > System Health >
Intrusion
Power Supplies > Hardware > Power Supplies
Removable Flash Media Dashboard > System Health >
Removable Flash Media
Temperature Dashboard > System Health >
Power/Thermal > Temperatures
Voltage Dashboard > System Health >
Power/Thermal > Voltages
Monitoring performance index of CPU, memory, and
input output modules
In Dell’s 14
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:
CUPS functionality is not supported on following servers:
● PowerEdge R240
● PowerEdge R240xd
● PowerEdge R340
● PowerEdge R6415
● PowerEdge R7415
● PowerEdge R7425
● PowerEdge T140
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 traffic occurring at each memory channel or memory controller instance.
Data from these RMCs is aggregated to measure the cumulative memory traffic 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 traffic
emanating from or directed to that root port and the lower segment. Data from these RMCs is aggregated for measuring PCI
express traffic for all PCI Express segments emanating from the package. This is measure of I/O bandwidth utilization for
the system.
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Viewing iDRAC and managed system information