On each external hard disk I created two virtual hard disks, so I decided to install the APPL_TOP on it's own disk. This way I want to create a shared APPL_TOP, by installing the APPL_TOP once and then share it with my other node.
When using the shared appl_top feature in 11.5.10, you must also share the technology stack (iAS and 8.0.6 directory's).
I created the shares using the mount command on the machine where the software was not installed. I also had to start the NFS proces.
mount -t nfs machine1:/appl /appl
mount -t nfs machine1:/ebs/prodora/8.0.6 /ebs/prodora/8.0.6
mount -t nfs machine1:/ebs/prodora/iAS /ebs/prodora/iAS
Now, from the second machine I can see and work with the directory's mentioned above...
The install went perfect and completed without errors