Win7 on SCSI HD disappeared

Yesterday, my Win7 installed on a SCSI drive failed to boot up. I got an error message of misssing MBR. I could see the SCSI drive in the BIOS as well as boot into Acronis Recovery. I boot up using another HD, but couldn't see the SCSI drive from Disk Management.

1. How could I reinstate the MBR?

2. If reinstating the MBR is too complex or impossible, is there any easy way that I could retrive the data? For example, could I copy the SCSI partition onto an SATA drive using Acronis Recovery?

Thanks.

Thanks for the suggestion.

I did try your suggestion, but the System Recovery didn't detect the SCSI disk. As such, it didn't solve my problem.

I copy the whole partition on the SCSI drive to a SATA drive using Acronis Recovery. Once copied, I could see all the files copied to the SATA drive, and the data seemed to be intact. As such, the SCSI seemed to be intact as well. What I am missing now is a tool which could assess the SCSI drive and able to rebuild the MBR.

I haven't tried Startup Repair. In fact, I couldn't use any tools that come with the Windows 7 installation disk at all as it could not detect my SCSI drive.

At one stage, I thought my SCSI drive was dead. However, Acronis Recovery successfully retrieved the data. Unfortunately, Acronis couldn't rebuild the MBR.

I am not too sure as the OS was installed by IT. It is a computer at work.

Not too sure it help, but I noticed the SCSI drive is connected to a PCI card, rather than directly to the mother board.

I found the cause of my problem:

My SCSI drive has a "system reserve partition" and a "OS partition". For some unknown reasons, the latter was accidentally marked as active. I used "MiniTool Partition Wizard" to change the "system reserve partition" back to active, it can boot again.