Users Guide

● System Level CUPS Index — The CUPS index is calculated by aggregating CPU, Memory, and I/O index considering a
predefined load factor of each system resource. The load factor depends on the nature of the workload on the system.
CUPS Index represents the measurement of the compute headroom available on the server. If the system has a large CUPS
Index, then there is limited headroom to place more workload on that system. As the resource consumption decreases, the
system’s CUPS index decreases. A low CUPS index indicates that there is a large compute headroom and the server can
receive new workloads and the server is in a lower power state to reduce power consumption. Workload monitoring can then
be applied throughout the data center to provide a high-level and holistic view of the data center’s workload, providing a
dynamic data center solution.
NOTE: The CPU, memory, and I/O utilization indexes are aggregated over one minute. Therefore, if there are any
instantaneous spikes in these indexes, they may be suppressed. They are indication of workload patterns not the amount of
resource utilization.
The IPMI, SEL, and SNMP traps are generated if the thresholds of the utilization indexes are reached and the sensor events are
enabled. The sensor event flags are disabled by default. It can be enabled using the standard IPMI interface.
The required privileges are:
● Login privilege is required to monitor performance data.
● Configure privilege is required for setting warning thresholds and reset historical peaks.
● Login privilege and Enterprise license are required to read historical statics data.
Monitoring performance index of CPU, memory, and input output
modules using web interface
To monitor the performance index of CPU, memory, and I/O modules, in the iDRAC web interface, go to System >
Performance.
● System Performance section — Displays the current reading and the warning reading for CPU, Memory and I/O utilization
index, and system level CUPS index in a graphical view.
● System Performance Historical Data section:
○ Provides the statistics for CPU, memory, IO utilization, and the system level CUPS index. If the host system is powered
off, then the graph displays the power off line below 0 percent.
○ You can reset the peak utilization for a particular sensor. Click Reset Historical Peak. You must have Configure
privilege to reset the peak value.
● Performance Metrics section:
○ Displays status and present reading
○ Displays or specifies the warning threshold utilization limit. You must have server configure privilege to set the threshold
values.
For information about the displayed properties, see the iDRAC Online Help.
Monitoring performance index for of CPU, memory, and input
output modules using RACADM
Use the SystemPerfStatistics sub command to monitor performance index for CPU, memory, and I/O modules. For more
information, see the iDRAC RACADM CLI Guide available at https://www.dell.com/idracmanuals.
Idle Server Detection
iDRAC provides out-of-band performance monitoring index of server components like CPU, memory, and I/O.
The history data of the server level CUPS index is used to monitor whether the server is utilized or running idle for long time. If
the server is underutilized below certain threshold for a defined span of interval (in hours), then it will be reported as idle server.
This feature is only supported on Intel platforms with CUPS ability. AMD and Intel platforms without CUPS capability do not
support this feature.
NOTE:
● This feature requires Datacenter license.
Viewing iDRAC and managed system information 117