Assuming that all the hardware are on the Tested Hardware List. (cpu, memory, harddrives)
Assuming that you have all the latest firmware of the board and Oprom firmware if board is SAS version (S5000VSASASR)
If you are using an Intel Backplane, make sure to update the firmware to the latest one to prevent problem in the future.
Well, regarding your issue, it can be down to many things.
Before doing any tests:
1. Perform a Verified separate and complete Backup as a precaution
2. If the drives are not online or recognised:
It can be due:
Failed physical drive.
Excessive number of hard drive grown defects or hard drive block redirection events.
Data bus errors.
Power interruptions or an unexpected reboot.
Hard drive thermal issues.
3. Check power supply and power connections.
Check cables for proper installation, type, and length.
Check cable routing, reseat cable connectors.
Replace if faulty.
Review the firmware versions for the hard drive - check if there is any new firmware revision on the particular drive's website
Note: If the drives are shown as failed, do not re-use a failed drive.
When using raid, it is always advisable to have same model of drives with the same firmware revision.
Try to connect the drives onto another identical motherboard with exactly the same board revision and same firmware revision and connect the drives to same sata ports as in the original machine. If the array is shown as non-raid, then definitely, you will need to recreate everything from start.
Note: If you are recreating everything from scratch again, make sure to update all the firmware as a precaution to avoid problem in the future and check for drive compatibility.
All the best,
I have the same problem.
Your previous answer was not helpful - backup the drives first, when he can't even see the raid volume.
So, I have a RAID10 volume.
1 disks has died.
I put replace dead disk, but when I press Ctrl-E to go into RAID BIOS, I can't see the volume.
All PD's show as READY.
There on no VD's defined.
The original 3 disks are on the same cable/port as before.
There is no cage, just a direct connection from the drive to the MB.