Sorry to resurrect an old thread.. but..
Just working on my newly-failed VIP722 this week. Powered down to rearrange living room, and when powered back up I got Error 311 Hard Drive Failure.
Background - I'm a computer technician, so step 1 was to remove the drive and plug it into my computer to see what's going on. Drive model is the Seagate Pipeline ST3500312CS. I plugged it in, and it wouldn't spin up. I could hear it trying, but it wouldn't. So I did what any good computer technician does... I shook the crap out of it, heard SOMETHING move around inside (either the platters spinning on the spindle, or the heads flopping back and forth...).
At this point, I figured what the heck... Plugged it back into the computer, and it spun right up! I can see the partitions and everything... so I took a full sector-by-sector image of the entire drive with AOMEI Backupper.
I found an exact replacement drive - Seagate Pipeline ST3500312CS, brand new (old stock) on ebay, and have ordered it.
Now comes the $30,000 question... When the new drive arrives, will I be able to just dump the image onto the newly purchased drive, boot up the DVR, and have everything right where I left it, or is is going to "know" something's not quite right, and either reformat, or not allow me access to my recorded shows?