UCSM and C240 M5 Upgrade Sequence
UCSM (FI) firmware must be equal to or higher than the server VIC firmware for compatibility. Always upgrade FI first.
Pre-upgrade Preparation
Take a full UCSM configuration backup (Admin > All > Backup & Export) and verify current version compatibility with target bundles using the Cisco Interoperability Matrix Tool.
UCSM FI Upgrade Steps
Navigate to UCSM GUI > Equipment > Firmware Management > Download Tasks to download/upload "A-bundle" (FI A.bin) and "C-bundle" (host C.bin).
Click Firmware Auto Install > Install Infrastructure Firmware, then upgrade FI-A (subordinate) first with "A-bundle" (20-25 minutes, monitor via FSM tab).
Upgrade FI-B (primary) next and confirm reconnection. If connection drops, log in via subordinate FI.
Server Firmware Update
Go to Servers > Policies > Host Firmware Packages, modify existing policy or create new one selecting "C-bundle". Apply to Service Profile (check User Ack settings).
HyperFlex Firmware Upgrade Sequence
HXDP license registration is mandatory before upgrading to 5.0 or higher (failure without it).
HX Pre-upgrade Checks
Run Hypercheck tool (cluster health, DRS Fully Automated, storage capacity >20% free).
After FI "A-bundle" upgrade, access HX Connect > Upgrade > Pre-Upgrade Validation (upload ESXi/HXDP bundles and test).
Upon test success, perform sequential node upgrades (verify per-node health: vCenter connectivity, no Major Alarms).
Additional Safeguards
Risk management: Avoid non-maintenance windows; monitor FSM during upgrades.
Compatibility: Check Cisco Software Download > UCS B/C-Series Firmware > Release Notes & Upgrade Path.
Rollback: Download prior A/C-bundles, verify network/cabling. Confirm HX node vSphere services.
Issues: Contact Cisco TAC (collect logs: UCSM Support > Faults/Alarms).
This sequence ensures stability. Let me know for version-specific details!
