yep as long as you have that savevg made before it died....you can move it to another machine...restore from tape and life is good....
Restoring a savevg
Determine which drive to use to make up the restored volume group. A volume group CANNOT already exist on the physical drive that you use. Be sure to select all target physical drives.
Using SMIT, enter:
smit restvg
Restore DEVICE or FILE [/dev/rmt0]
SHRINK the filesystems? no
PHYSICAL VOLUME names [ ]
(Leave blank to use the PHYSICAL VOLUMES listed
in the vgname.data file in the backup image)
Number of BLOCKS to read in a single input [ ]
(Leave blank to use a system default)
Be sure to select all physical volumes that will make up the new volume group.
To restore from the command line, enter:
restvg -f /dev/rmt# hdisk# {hdisk# ...}