I have about 6 SATA units attached to our SAN that refuse to show up to the Server 2008 box. Not even the basic LUN information is available. The odd part is it just seems to have suddenly disappeared as it had worked ealier this week. -Aaron

Hello Aaron,Do you mean that you cannot see the LUNs that resides on SAN within Windows Server 2008? Since the LUNs suddently disappeared, can you please check if there is any action was perform on that server?Please also check the registry keys, those volumes has been attached to the OS will be shown under the following registry node.HKEY_LOCAL_MACHINE\SYSTEM\MountedDevicesCan you see those keys value?Meanwhile, I would also suggest that you refer to the instruction of the SAN to reconfigure the LUNs to make them appose to the operation system.Thanks and hope it helps.This posting is provided "AS IS" with no warranties, and confers no rights.