RHEL7 has additional filed called “Slab” in “cat /proc/meminfo” which needs to be considered for correct physical memory calculation
Release : 9.0.2
Component : UIM - CDM WITH IOSTAT
We are checking for minimum OS version of RedHat 7.1 as supported by Redhat, then only deducting slab value from Total Memory Usage. This as per https://access.redhat.com/solutions/406773 link.