Skip to main content
Sign Out

Welcome to Dell

My Account
  • Place orders quickly and easily
  • View orders and track your shipping status
  • Create and access a list of your products
  • Manage your Dell EMC sites, products, and product-level contacts using Company Administration.
Sign In Create an Account Premier Sign In Partner Program Sign In
Contact Us

Dell Chassis Management Controller Version 3.10 for Dell EMC PowerEdge VRTX User's Guide

PDF

CMC Failsafe Mode

The PowerEdge VRTX enclosure enables the fail-safe mode to protect the servers and I/O module from not functioning. The fail-safe mode is enabled when a CMC is not in control of the chassis. During the CMC failover period, or during a single CMC management loss:
  • You cannot turn on the newly installed servers.
  • You cannot remotely access existing servers.
  • Server performance reduces to limit power consumption until management of the CMC is restored.
The following are some of the conditions that can result in CMC management loss:
  • CMC removal — Chassis management resumes after replacing CMC, or after failover to standby CMC.
  • CMC network cable removal or network connection loss — Chassis management resumes after the chassis fails over to the standby CMC. Network failover is only enabled in redundant CMC mode.
  • CMC reset — Chassis management resumes after CMC reboots or chassis fails over to the standby CMC.
  • CMC failover command issued — Chassis management resumes after the chassis fails over to the standby CMC.
  • CMC firmware update — Chassis management resumes after CMC reboots or chassis fails over to the standby CMC. It is recommended that you update the standby CMC first so that there is only one failover event.
  • CMC error detection and correction — Chassis management resumes after CMC resets or chassis fails over to the standby CMC.
  • NOTE: You can configure the enclosure either with a single CMC or with redundant CMCs. In redundant CMC configurations, if the primary CMC loses communication with the enclosure or the management network, the standby CMC takes over the chassis management.

Rate this content

Accurate
Useful
Easy to understand
Was this article helpful?
0/3000 characters
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please select whether the article was helpful or not.
  Comments cannot contain these special characters: <>()\