Troubleshooting | Hardware

Issue: 27.3k write errors when zpool status was invoked on the PVE 2026-01-26

Root Cause: The SATA cable was the main and only culprit behind the issue. Using smartctl -a on the device has shown only ZFS errors, with no actual bad sectors on the disk.

Fix: Replaced the SATA cable.

Baseline Verification - 2026-01-28

Status: Verified zpool status is healthy. After 24 and 48 hours respectively. Errors: 0 (Read, Write, Checksum). Notes: Baseline established before Phase 2 rsync migrations.

How to Monitor

To check the status of the primary storage pools on the OMV/Proxmox nodes:

zpool status -v

Further improvements pending Phase 3: Monitoring, Health & Notifications.