What You See
- iDRAC, MegaRAID, or RAID BIOS shows “No Virtual Disks Found”
- Drives spin up, but OS won’t boot
- You recently restarted or power-cycled the server
What It Means
- The controller lost its mapping of the RAID array
- One or more drives may have dropped or reset during boot
- RAID metadata mismatch prevents the controller from mounting the volume
This often happens after a foreign config detection — even if you didn’t touch anything. Just rebooting can confuse some controllers into “clearing” temporary drive state.
What Not To Do
- 🚫 Don’t recreate the virtual disk manually
- 🚫 Don’t assume the array is gone — it may just be unlinked
- 🚫 Don’t boot into the OS installer — it may auto-partition
What You Can Do
- Check the physical view — are all drives present?
- Record slot order, drive status, and any alerts
- Use JeannieLite or reach out to a RAID engineer to get help
Real-World Tip
This is a classic “dead on reboot” RAID failure. In many cases, the data is still there — you just need the right config to re-link the array without writing over it. We do this all the time.