Users Guide

• Preparing multiple cards for configuration by server BIOS
• Initializing all cards prior to blade node power-on
All these processes require few seconds to complete which causes a delay in initialization of the PCIe cards. The PCIe Ride-through
feature in CMC VRTX reduces this process cycle time. The PCIe Ride-through feature enables the following:
• The Server nodes are turned on quickly, thus turning on the PCIe cards quickly.
• The powered state of PCIe cards is extended for a pre-defined time period in the following scenarios:
• After the associated server is turned off.
• After adapter discovery process is completed.
• The power-on readiness state of the cards is extended for a predefined time after the discovery process. This extension eliminates the
delays for common types of power cycling scenarios. The cards continue to be in ready state awaiting node assignment and power-up.
The cards power-down after the time period expires.
.
NOTE: At the end of the time period, the PCIe cards power-down. All adapters in ride-through are also powered down
whenever the chassis door is opened.
NOTE:
• If CMC has insufficient power, the CMC turns off all adapters in ride-through mode, thereby releasing all power
allocated to those adapters. If the power supply is restored, the power is reallocated to the PCIe slots. This power
restoration enables the cards to be ready for server allocation without delay.
• All external PCIE adapters powered on as shared mode is excluded from the ride-through processes. After a shared
adapter is powered on as a shared device, it remains powered on until the chassis is powered off.
Viewing PCIe Ride-through Properties Using CMC Web
Interface
To view the PCIe Ride-through properties, in the left pane, click Chassis Overview > PCIe Overview. The PCIe Status page is
displayed. The General Settings section displays the following PCIe Ride-through properties status:
• Ridethrough Status — Enabled or Disabled
• Ridethrough Timeout — Indicates the time for which the Ride-through feature is enabled
Viewing PCIe Ridethrough Properties Status Using
RACADM
To view the information about PCIe power ridethrough properties, enter the following command:
racadm getpciecfg –r
For more information, see the Chassis Management Controller for PowerEdge VRTX RACADM Command Line Reference Guide.
Configuring PCIe Ride-through Properties Using CMC
Web Interface
To configure the PCIe Ride-through properties for CMC VRTX:
1. In the left pane, click Chassis Overview > Setup > Ridethrough.
The PCIe Ridethrough Settings page is displayed.
2. To enable or disable the PCIe Ride-through feature, select or clear the Enable PCIe Ridethrough option.
NOTE: By default, the Ride-through feature is enabled and the time period set for 300 seconds.
3. In the Timeout field, enter the time for which the Ride-through feature to be enabled.
Type either zero (0) or a value from 60–1800 seconds. Zero indicates an infinite timeout.
4. Click Apply.
Managing PCIe Slots
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