CIMC Certificate Renewal

The Cisco® Integrated Management Controller (IMC) is a baseboard management controller that provides embedded server management for Cisco UCS® C-Series Rack Servers and Cisco UCS S-Series Storage Servers. The Cisco IMC enables system management in the data center and across distributed locations.

The CIMC certificates are valid only for 3 years. If the certificate expires in less than 90 days, it must be renewed.

To renew the CIMC certificate, use the following configuration:

config 
   clusters cluster_name 
      node-defaults ucs-server cimc certificate rehydrate { true | false} 
      exit 

NOTES:

  • When the certificate is renewed, the CIMC drops connections for 15 to 60 seconds while the host key is updated.

  • The default setting is false . When set to true , it renews the certificate that expires in less than 90 days.

  • Every cluster synchronization log displays the expiry date of the certificate.