Upgrade ZStack Cloud Host Kernels

Scenario

• Product: ZCF
• Component: ZStack Cloud
• ZStack Cloud version: 5.3.x
• Current kernels:
• 4.19.90-52.15.v2207.ky10.x86_64
• 4.19.90-52.15.v2207.ky10.aarch64
• Target kernels:
• 4.19.90-52.57.v2207.ky10.x86_64
• 4.19.90-52.57.v2207.ky10.aarch64
• Deployment: Dual management nodes
• Trigger: Host kernels must be upgraded one at a time while controlling workload and storage impact.

Symptoms

• The current kernel version is old and must be standardized to 4.19.90-52.57.
• The upgrade requires host restart.
• In ZCE-X or separate-deployment environments, data recovery and Ceph health require attention while storage hosts are upgraded.

Assessment