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RAID 1 Failures and Data Recovery


I have been using a Dell PowerEdge 2950 server which has a Raid 1 array connected to it which has three drives. One of the drives is a RAID 0, and the other two are set up as a RAID 1 mirror. This was done to protect the data that I have installed on the array. I have now received an error message from the computer, saying that one of the drives is no longer working, and has basically failed. There are, apparently, 1000s of bad sectors from one end of the drive to the other, which probably means that most of the data on it is not recoverable. I think that the drive is one of two in the RAID 1 configuration, and I have tried to remove each of these drives in turn, and test them outside of the array, but the tests all conclude that the drives are fine.


I am having a problem with a Dell PowerEdge Raid 1 array. I have already lost one drive, and been forced to do a rebuild with a replacement disk. That was some weeks ago, and both of the drives in the array should now be working, and have all of the data which I have loaded onto the array. However, when I tried to turn on the computer this morning, I found that the Windows Server 2003 OS, which I used with the PowerEdge server, has completely vanished. Not only is it not working or booting up, but it is also missing in BIOS. When I go to my standard Windows 7 OS, I can find nothing to do with the array in File Systems or in Device Manager. There doesn’t even seem to be space where my drives should be. I am now concerned that the rebuild has made the situation worse, to the point where the drives are no longer connected to the server. I need the information from these drives desperately; I really have to have it.