Can I update the rimparms to start CAS9 only for Librarian without restarting the tasks that are already running?
Release: 4.4
Yes, you can restart CAS9 with just the Librarian portion, however if you use LAM then you would need to change the CAIRIM statement to:
PRODUCT(CA-LIBRARIAN) VERSION(LJ44) INIT(LJ44INIT) PARM(REINIT=LAM)
S CAS9
Remember to change your CAIRIM back afterwards before any scheduled IPLs.