Hi,Ihad raid 5 on windows 2000 server and ibm raid manager was installed. Because of the power failure the disk went off line and ibring themback on line through raid manager software. Now the disk are all on line. windows 2000 server couldn't see the volume. I tried to re-activate and it gave me an error message ' no valid disk found...'. I have the following error message when i start the computer. ' dmboot: Failed to auto-import disk group Depsrv-oldDg0. All volumes in the disk group are not available...' Please help me on this issue.Thanks,Kala

Hi Kala, According to the research, by default Windows 2000 Server initializes the disk and make it as dynamic disk. The issue maybe occurs due to the corrupt LDM database, which results in the inability to bring disks online. Would you please check in the disk management console to see if the attached RAID5 was initialized as Dynamic? If so, we recommend you manually convert the RAID5 disk from dynamic disks to basic disk. Steps: 1. Start -> run -> diskmgmt.msc 2. Check the Disk that is list under the button to see if the system initializes the RAID5 disk as Dynamic 3. If so, please convert the Disk from Dynamic to basic by right-clicking on the disk and select "Revert To Basic Disk" 4. Afterwards, Please reboot the server and check if you can access the data again. Hope it helps.David Shen - MSFT