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:
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When the certificate is renewed, the CIMC drops connections for 15 to 60 seconds while the host key is updated.
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The default setting is false . When set to true , it renews the certificate that expires in less than 90 days.
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Every cluster synchronization log displays the expiry date of the certificate.