Hi, can someone help me? what is the reason for this problem? why the iSCSI Image is giving problem? please help me.

Hi, I have used an iSCSI Image for 100 GB. After two/three days, when i connect the drive, it is not responding. In MyComputer, drive name is displaying but not space details and all. I have tried to connect this image many Initiator, but nothing. The drive is having around 80 GB of data. how to rec...