For more details on this issue and prevent it from impacting your environment, please engage HPe support.
This has been fixed in ESXi versions 7.0U3q and 8.0U2b and higher as well as in HPe iSUT version 2.9.0
If upgrade is not possible at this time follow the below workaround
Workaround:
As a workaround to prevent this memory allocation issue, you can uninstall the HPe iSUT component by following these steps:
1.) It is preferred to put the Host in Maintenance Mode
2.) Verify that the HPE iSUT component is installed by running without "#":
# esxcli software component list | grep -i sut
The output should show: sutComponent Integrated Smart Update Tool
Example:
3.) De-Register the iSUT utility by running without "#":
# sut -deregister
4.) Uninstall the iSUT component by running without "#":
# esxcli software component remove –n sutComponent
5.) You should see - Example:
6.) Proceed with rebooting of the Host
7.) When the Host is back from reboot but still in Maintenance Mode verify that the HPE iSUT component is gone by running without "#":
# esxcli software component list | grep -i sut
8.) If all is looking good, put the Host out of Maintenance Mode