In the process of copying the below files to the below mentioned location, files will be deleted.
main.cvd, daily.cvd, and bytecode.cvd.
/var/vcap/data/antivirus-mirror/unvalidated
Anti-Virus for VMware Tanzu
After moving a file to an unvalidated location, the files will automatically be copied to the validated persistent data, and the existing files will be deleted from the unvalidated location
/var/vcap/store/antivirus-mirror/validated/
This is expected behaviour.
https://techdocs.broadcom.com/us/en/vmware-tanzu/platform-services/anti-virus-for-tanzu/2-3/antivirus-tanzu/updating-databases.html
https://techdocs.broadcom.com/us/en/vmware-tanzu/platform-services/anti-virus-for-tanzu/2-3/antivirus-tanzu/updating-databases.html