help to recover crashed disks

[Kamrad at hi-multics.arpa]

I want to know if there is any way that data from a logically crashed
can be recovered.  The backup disk was one large file system.
Inadvertantly a newfs command was issued to that backup disk.  It only
destroyed part of the disk leaving the lots of alternative super blocks
and data still on the disk.  What procedure can we use to recover and
how much can we expect to recover?

Mike Kamrad 
Honeywell Systems and Research Ctr.
mpls MN

kamrad at hi-multics