Understand Pre-Upgrade Health Check:

Purpose:The pre-upgrade health check is designed to ensure the system is in a stable state before proceeding with firmware or software upgrades. This helps to avoid disruptions and data loss.

Volumes on Non-Preferred Path (B):

Issue:If volumes are reported on a non-preferred path, it indicates that there might be a pathing issue or an imbalance in the I/O load.

Impact:Non-preferred paths can lead to performance degradation and increased latency, which might cause issues during the upgrade process.

Resolution:Ensure that all volumes are accessible through their preferred paths before initiating the upgrade.