Does anybody have experience with a RAID expand on a HP ProLiant DL380 G4 Server with NetWare 6.5 SP7 installed?

Last Saturday I've startet a RAID Expand on low priority that will take round about 3-4 weeks. Last Expand takes 2 1/2 weeks.

Now my OS hangs because some backup jobs (Veritas NetBackup) quitted last night without terminate the multiple connections of the backup user. The Utilization is high and I can't unload the NetBackup Client nor load any other Modules.

Now I have to know what will be, when I press the reset button of the server because I guess the OS won't restart/reset if I type "reset server" in the server console. I guess it will stuck.

Any ideas what I can do?

Thank you