We have a groupwise (7.0.3) seven node netware (6.5 sp7) cluster. We use Syncsort Backup express as our backup system and has run with no problems over the last years. We recently upgraded two of the nodes to SP8 and are now experiencing tape library failures will messages relating to our SAN pathing. We have re-installed the bex cleint on one of the nodes and the quantum tape libraries failed last night with a robotics failure. If we take the two nodes out the cluster, the cluster backup is successfull with no problems. I can't seem to figure out what sp8 has broken on these two nodes that dont seem to be communicating with the library properly, the Tape Library support company has indicated that it is related to a software issue ?

any advice will be most helpfull.