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Recently one of my servers has crashed and on reboot I was greeted with the error message below:

FW could not sync up config/prop changes for some of the VD's/PD's.
Press any key to continue, or 'C' to load the configuration utility.

Foreign configuration(s) found on adapter.
Press any key to continue or 'C' to load the configuration utility,
or 'F' to import foreign configuration(s) and continue.

All of the disks from your previous configuration are gone. If this is
an unexpected message, then please power off your system and check your cables
to ensure all disks are present.
Press any key to continue, or 'C' to load the configuration utility.

Entering the configuration utility in this state will result in drive
configuration changes. Press 'Y' to continue loading the configuration utility
or please power off your system and check your cables to ensure all disks are
present and reboot.

All of the disks from your previous configuration are gone.

This was the scariest error message I have encountered in a long time. Did I just lost a terabyte of valuable data even though I was using a redundand RAID configuration? I have of course backed up everything but I still did not want to spend the day rebuilding the system from scratch.

Fortunately, I was able to put back the LSI MegaRAID controller configuration and no data was actually lost.

In case this occurs to someone else, here are the steps that I did to recover my server.

Note that these steps apply only to my own configuration. Use with caution. Make a backup of your data before using this information. I am not responsible if you lose any data.

 

  1. Enter the LSI MegaRAID BIOS configuration utility. Press ALT-S, then RETURN.



  2. You are now in the home screen of the LSI MegaRAID BIOS Config Utility. It should look similar to this screenshot (if not, press ALT-D, then RETURN). Note that all my disks are in the state "Unconfigured Bad" for some reason.



  3. Press ALT-H, then select the first Unconfigured Bad disk drive by pressing the ARROW-DOWN key, then RETURN.



  4. You now see some information for the selected physical disk drive. Force the drive in the "Unconfigured Good" state by pressing ALT-U, SPACE, ALT-G, then RETURN.



  5. The next page is for setting some more disk drive attributes, which we don't need. Go back to the home screen by pressing ALT-B, then RETURN.



  6. Repeat this until all of your "Unconfigured Bad" drives are in the "Unconfigured Good" state. After that, let the LSI MegaRAID controller re-scan all physical disk drives to read the configuration, which is conveniently stored somewhere on each physical disk drive. Press ALT-S, then RETURN.



  7. Hopefully, the Scan Devices command has recovered the RAID configuration. In my particular setup I have four physical 500 GByte disk drives that are configured as one single RAID-10 virtual disk drive with 1 TByte capacity. I am not sure how this dialog looks like if there are more than one virtual disk drives configured, if that is the case you need to continue on your own from here on. In case anything goes wrong it is however possible to run the "Scan Devices" command again and try something different.

    Anyway, if your configuration is similar to mine press ALT-P, then RETURN.



  8. If the configuration could be read successfully from the devices, a preview dialog is displayed. The RAID controller has successfully read the configuration which looks in fact exactly how the system was configured earlier. Press ALT-I, then RETURN to import the configuration.



  9. The LSI MegaRAID Controller has recovered its drive configuration. Everything looks good so far. You can now restart the system: press ALT-X, then RETURN.



  10. Press ALT-Y, then RETURN



  11. Finally, physically reset or power-cycle the system. This can't be done from the utility.

System is back!

After the reboot the RAID controller was in its previous state and the server could be started successfully.

16 Comments

  1. Anonymous

    Life saving Documents.

    Thanks (smile)

  2. Anonymous

    Thanks !!!!

  3. Anonymous

    Thank you very very much

  4. Anonymous

    oh my god - thank you!!!!! very helpful!!!

  5. Anonymous

    Thank you so MUCH!!!!

  6. Anonymous

    Thank you so much!!! you save my life! 

  7. Anonymous

    Çok teşekkürler. Verilerimi kurtardım.

    Thank you....

  8. Anonymous

    Thank you! It worked! You save me.

  9. Anonymous

    very good article!

  10. Anonymous

    I just went through this myself with a 12-drive array - I was able to perform the same steps as you did and everything came back to life. I only wish I had seen your article BEFORE I went through it all - it would have saved me MUCH stress to see it beforehand!

    Thanks for the post!

    Rich

  11. Anonymous

    Hello i got this problem one of my driver show this in the physical view:

    Slot:0,SATA,Unconfigured Bad, Not Responding (Unsupp)

     

    1. I haven't seen this particular problem myself, but here is a guess: if the error message is "All of the disks from your previous configuration are gone" AND one of the disks shows the error message "Not Responding" as you indicated, then there is probably a different error and this tutorial might not work.

      If you have a single disk that is not responding, but all other disks in the RAID array are still functional then try replacing that disk with a good one of same size or larger. The RAID array should rebuild automatically. If not, there are several tutorials that explain how to manually replace a bad disk.

      ·         Die Seitenhistorie: Änderungen prüfen, alte Versionen wiederherstellen

  12. Anonymous

    Thanks, I already replace the disk with a new one, but still getting the same error, that's why i can't configure it to good...i try removing the disk and remain the other 3 but still same happen 2 disk is good while the other one go unsupported...help me...my head start to hurt don't know what the root cause of this.

      

    1. Did you verify on another PC that the disk you replaced is in fact broken?

      It is also possible that the internal connector cable from the disk to the RAID controller is loose or broken, or that the RAID controller itself has a problem.

       

  13. Anonymous

    thank you. save my life

  14. Anonymous

    u save my life brother