When troubleshooting a performance related issue, an administrator sees the following warning message on an ESXi Console:
Significant imbalance between NUMA nodes detected. Performance may be impacted.
Which action should the administrator take to correct this problem?
A.
Ensure that the RAM modules are evenly balanced between processor sockets in the physical server.
B.
Ensure that all memory banks associated with CPU Socket 0 in the physical server are completely filled.
C.
Ensure that the physical server has the maximum amount of RAM modules that it can support.
D.
Ensure that all RAM modules in the host are Error-correcting code (ECC) modules.
Cause
This issue may occur after upgrading your ESX/ESXi host.
This message is reported when memory is not evenly distributed between processor sockets. The system is completely functional in this configuration but may run some workloads at reduced efficiency due to increased memory latencies. Each CPU socket has its own RAM slots.
https://kb.vmware.com/s/article/1018754
Cause
This issue may occur after upgrading your ESX/ESXi host.
This message is reported when memory is not evenly distributed between processor sockets. The system is completely functional in this configuration but may run some workloads at reduced efficiency due to increased memory latencies.
Each CPU socket has its own RAM slots.
Note: Damaged or faulty physical RAM modules can also cause this issue.
https://kb.vmware.com/s/article/1018754