If anyone out there is interested or comes accross this issue
The problem turned out to be mount point options pm the Linux Volumes
I had them configured as part of best practice for RAC / NetApp / Direct NFS - hjowever I also had individual binaries for both nodes so as to have greater availability.
Thereffore I should have had the mount options for SINGLE NODE.
Change was to
- shutdown the instance
- unmoiunt the binaries
- change the following on fstab
<mount> <volume> nfs rw,bg,hard,nointr,rsize=32768,wsize=32768,tcp,vers=3,timeo=600,actimeo=0 0 0
<mount> <volume> nfs rw,bg,hard,rsize=32768,wsize=32768,vers=3,nointr,timeo=600,tcp
- startup the instance and repeat on Node 2