Location of the system core dump is typically incorrect and just drops it in the middle of the host OS, you will need to edit the
/opt/apps/WebSphere/AppServer/bin/setupCmdLine.sh
# Add:
IBM_COREDIR=/net/cn-flor-nas01-prod.wdw.disney.com/data/TPR/WDW/Vol005/WDPRTHome/middleware/dumps/${HOSTNAME}
export COREDIR
# the COREDIR can also go at the end of the large export command at the end of the script.
JVM restart(s) are required to pick up the change. Even though the system dump is initiated, you have to pick the JVM that initiates it, so it is related to the JVM. A full restart of all the JVM’s is technically needed, as is changing this file on every node in the cluster.
“Incorrect” in that the dump files are freaking gigantic and run the box out of space pretty quickly. Redirect these to the NAS.