>What's your amd configuration ?

eg. 

/etc/amd.conf:

[ global ]
dismount_interval =     900

[ /host ]
map_name =              /etc/amd/map



/etc/amd/map:

/defaults       type:=host;fs:=${autodir}/${rhost};rhost:=${key}
*               opts:=rw,grpid,resvport,nodev


FWIW, I never had success with amd on sparc64
very similar result.

--sjg