Pulled a drive in a mirrored pool for testing in 2 different systems. In both instances pool degraded (no alerts received - different ticket). Reinserted drive, pool never updates to a healthy status. Restarting the system from the UI results in the pool status changing to "unhealthy". The only way to clear this, is to hard reboot system. Once back online, pool shows healthy.
Debugs for both systems attached.