[blue68f100]

That can not be good. If the data is a must have a recovery service may be you only option. If you know what the volume names are you may be ok.

I would try Spinrite, at this point you do not have a lot of options. SpinRite will not delete data, or never has for me. Once it sees things are not right it drops into a recovery mode. In recovery mode it queries multiple reads on the same bit. If says by reading before and after it can determine what it should be. In theory this is what happens when you start loosing power, speed and timing is off causing it to miss it's target.

There was one uses that found some recovery software he was able to use on his own. But I think he new the file system and the info needed to plug in the correct variables.

I'm glad I run UPS's on all of my equipment. I also use snapshots and do make the diaster recovery file which holds the info your looking for, and store it on 2 different servers.