When running prechecks in SDDC Manager within a VMware Cloud Foundation environment, warning messages such as vCenter memory exhaustion check failed or Please verify that vCenter has enough memory for the upgrade may be reported. This warning can occur even when the actual memory utilization of the vCenter Server is within normal levels.
VMware Cloud Foundation
VMware SDDC Manager
Depending on the evaluation timing or calculation logic used during the SDDC Manager precheck process, a warning may be triggered even if actual memory consumption is sufficient and healthy.
If the actual memory usage of the vCenter Server is low and there are no signs of resource exhaustion, this precheck warning can be safely acknowledged or ignored in SDDC Manager to proceed with the upgrade operation.
Japanese version: SDDC Manager で vCenter Server の事前チェック実行時にメモリに関する警告が発生する (449508)