Hello wsanders11,
Just a short comment based on you updating your question:
Could those python-zdumps have been present before updating to 6.5 U1?
"If the disk is damaged, you can not activate vSAN or add ESXi host to vSAN cluster
If there is a corrupted storage device on the host, executing vSAN or adding a host to the vSAN cluster may cause the operation to fail. After doing this operation, Python zdump will be present on the host, the vdq -qcommand will fail and a core dump will be created on the relevant host.
This issue has been fixed in this release."
https://docs.vmware.com/en/VMware-vSphere/6.5/rn/vsphere-esxi-651-release-notes.html
Check the time stamps on them:
# ls -lah /locker/var/core
Dumps are safe to move to another location if you wish to retain them and are not active - though if they are not doing anything untoward like filling up a RAMdisk then moving is unlikely to change the situation.
Bob