Special guidelines for AIX master servers
Because of known memory problems, Veritas recommends you reset memory values for AIX master servers. Veritas recommends that you run the commands shown:
ulimit -s unlimited
ulimit -d unlimited
ulimit -m unlimited
These changes set the physical memory size, the data area size, and the stack size to unlimited. These changes resolve known memory problems for AIX. Be sure to stop and restart the NetBackup daemons after you change the ulimit value.