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For more information, see the Online Help.
Configuring Fans
Fan Offset — A feature to provide increased cooling to the storage and PCIe regions of the chassis. This feature allows you to
increase the airflow delivery to the HDDs, Shared PERC controllers, and PCIe card slots. An example usage of the Fan Offset is
when you use high-power or custom PCIe cards that require more cooling than normal. The Fan Offset feature has options of Off,
Low, Medium, and High. These settings correspond to a fan speed offset (increase) of 20%, 50%, and 100% of the maximum speed
respectively. There are also minimum speeds setup for each option, which are 35% for Low, 65% for Medium, and 100% for High.
Using the Medium Fan Offset setting for example, increases the speed of fans 1–6 by 50% of its maximum speed. The increase is
above the speed already set by the system for cooling on the basis of installed hardware configuration.
With any of the Fan Offset options enabled, the power consumption will be increased. The system will be louder with the Low offset,
noticeably louder with the Medium offset, and significantly louder with the High offset. When the Fan Offset option is not enabled,
the fan speeds will be reduced to the default speeds required for system cooling for the installed hardware configuration.
To set the offset feature, go to Chassis Overview → Fans → Setup. On the Advanced Fan Configurations page, in the Fan
Configuration table, from the Value drop-down menu corresponding to Fan Offset, select an option appropriately.
For more information about the Fan Offset feature, see the Online Help.
For setting up these features by using RACADM commands, user the following command:
racadm fanoffset [-s <off|low|medium|high>]
For more information about the fan offset-related RACADM commands, see the Chassis Management Controller for PowerEdge
VRTX RACADM Command Line Reference Guide available at dell.com/support/Manuals.
Enhanced Cooling Mode (ECM) — Is a feature in the CMC that allows increased cooling capacity for the servers installed within
the PowerEdge VRTX chassis. Example uses for ECM are operation in a high ambient environment or using servers with high power
(≥120W) CPUs installed. The increased cooling capacity is achieved by allowing the four chassis blower modules to run at a higher
speed. As a result, the system power consumption and noise level may be increased when ECM is enabled.
When enabled, ECM will only increase the cooling capacity to the server slots within the chassis. It is also important to note that
ECM is not designed to provide increased cooling to the servers at all times. Even with ECM enabled, the higher blower speeds will
only be seen when the increased cooling is needed. Examples of this situation include high levels of server utilization or stress, and
high ambient temperatures.
By default, ECM is off. When ECM is enabled, the blowers have the capability to deliver approximately 20% more airflow per blade.
To set the ECM mode, go to Chassis Overview → Fans → Setup. On the Advanced Fan Configurations page, in the Blower
Configurationtable, from the Value drop-down menu corresponding to Enhanced Cooling Mode, select an option appropriately.
For more information about the ECM feature, see the Online Help.
Viewing Front Panel Properties
To view the front panel properties:
1.
In the left pane, click Chassis Overview → Front Panel.
2.
On the Properties page, you can view the following:
•
Power Button Properties
•
LCD Properties
•
KVM Properties
•
DVD Drive Properties
Viewing KVM Information and Health Status
To view the health status of the KVMs associated with the chassis, do any of the following:
1.
Click Chassis Overview.
The Chassis Health page is displayed. The left pane displays the front view of the chassis and contains the health status of a
KVM. KVM health status is indicated by the overlay of the KVM sub-graphic. Move the pointer over an KVM sub-graphic and a
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Troubleshooting
