Users Guide

• Cooling equivalent to previous generations of M1000e fans at the same power, when the ECM feature is disabled.
ECM mode is recommended for:
• Blade server congurations with high Thermal Design Power (TDP) processors.
• Workloads where performance is a critical.
• Systems deployed in environments where the inlet temperature exceeds 30°C [86°F].
,
NOTE: In the Enhanced Cooling Mode (ECM), the new generation fans provide superior cooling features when compared to
current generation fans of M1000e chassis. This increased cooling is not always needed and comes at the expense of higher
acoustics (where the system can sound up to 40% louder) and increased system fan power. You can enable or disable the ECM
feature on the basis of cooling required for a chassis.
By default, the ECM feature is disabled on a chassis. The ECM enabling and disabling operations are recorded in the CMC logs. The ECM
mode state is maintained after CMC failovers and chassis AC power cycles.
You can enable or disable the ECM feature using the CMC Web interface or the RACADM CLI interface.
Conguring Enhanced Cooling Mode for Fans Using Web
Interface
To congure Enhanced Cooling Mode (ECM) for fans using CMC Web interface:
1 In the system tree, go to Chassis Overview, and then click Fans > Setup.
The Advanced Fan Congurations page is displayed.
NOTE
: If ECM is disabled and all the fans in the chassis do not support ECM, then the Setup tab to access the Advanced
Fan Congurations page is not displayed.
2 In the Fans Conguration section, from the Enhanced Cooling Mode drop-down menu select Enable or Disable.
For more information about the eld descriptions, see the CMC Online Help.
NOTE
:
The Enhanced Cooling Mode option is available for selection only if:
• All the fans in the chassis support ECM feature. In this case, you can enable or disable the ECM mode.
• ECM is already enabled and the fan conguration is changed to Mixed Mode or all fans do not support ECM mode. In this case,
the ECM mode can be disabled, but cannot be enabled again until all fans in the chassis support ECM.
NOTE
: The Enhanced Cooling Mode and the Apply options are grayed out if:
• ECM mode is already disabled and fan conguration consists of unsupported fans along with supported fans. The information
section displays a message listing the fans that are incompatible with ECM feature.
• ECM mode is already disabled and Max Power Conservation Mode (MPCM) is enabled. The information section displays a
message that ECM is not supported when MPCM is enabled.
For more information see the CMC Online Help.
If the ECM feature is disabled, you cannot enable the feature again until all fans in the chassis support ECM.
3 Click Apply.
An operation successful message is displayed after the ECM option is successfully enabled or disabled. The ECM mode does not get
enabled if:
• The extra power required for supported fans is not available.
• Any of the fans in the chassis does not support ECM.
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Conguring CMC