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.
Explanation:
Explanation/Reference:
A is correct.
Here more info about NUMA:
https://support.rackspace.com/how-to/numa-vnuma-and-cpu-scheduling/
is there a VmWare PUB to back up this question ?
https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1018754