What You See:
- One mirror pair shows out-of-sync
- Controller may prompt for “rebuild mirror” or “synchronize”
- OS boots, but apps crash or report corrupt files
What It Likely Means:
- One drive went stale or dropped out silently, then rejoined with outdated data
- Controller is unsure which half of the mirror is valid
- Silent corruption may have replicated to both disks if sync ran automatically
What NOT To Do:
- ❌ Don’t trigger a mirror rebuild without identifying the correct copy
- ❌ Don’t assume newer timestamp = better data — it may be stale
- ❌ Don’t rely on SMART data alone — it won’t catch logical mirror divergence
What You CAN Do:
- ✅ Snapshot both mirror halves before syncing
- ✅ Use JeannieLite to compare sectors between drives
- ✅ Check file system logs for rollback points or sync triggers
One wrong sync can overwrite your only clean copy. Let us verify the right half before they both go bad.