Which component is disrupted when the Cisco Integrated Management Controller is upgraded on a Cisco UCS Series Server?
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A. B. C. D.B.
When the Cisco Integrated Management Controller (CIMC) is upgraded on a Cisco UCS Series Server, the KVM sessions are disrupted.
The CIMC is a dedicated management controller that provides out-of-band management capabilities for Cisco UCS servers. It allows administrators to monitor and manage servers independent of the operating system and main CPU. The CIMC also provides remote keyboard, video, and mouse (KVM) access to servers, which allows administrators to troubleshoot and manage servers even when the operating system is not running or has crashed.
During a CIMC upgrade, the CIMC firmware is updated, which can cause temporary disruptions to KVM sessions. This is because the KVM session is established with the CIMC firmware, and a firmware upgrade can cause the connection to be interrupted or lost. Once the upgrade is complete and the CIMC is rebooted, KVM sessions can be reestablished.
SAN traffic, data traffic, and Cisco UCS Manager are not directly affected by a CIMC upgrade. However, it is important to note that a CIMC upgrade can cause a server reboot, which can temporarily disrupt data and SAN traffic. In addition, it is recommended to upgrade Cisco UCS Manager before upgrading CIMC firmware to ensure compatibility and prevent issues during the upgrade process.