An administrator removes a virtual machine from a resource pool and places it in the DRS root
resource pool. Users report the performance of the application running on the virtual machine has
improved. The virtual machine relocation was the only change that occurred.
What explains the change in application performance?
A.
The memory, storage, and/or CPU settings of the original resource pool restricted access to
resources for the virtual machine.
B.
The configured memory, storage and/or CPU shares on the root resource pool are higher than
the original resource pool.
C.
The memory, storage and/or CPU settings on the root resource pool restricted access to
resources for the virtual machine
D.
The configured memory storage and/or CPU reservations on the root resource pool are higher
than the original resource pool.
Explanation:
I believe “A” would be the correct answer on this.
Correct answer are “A”.
“shares” uses only siblings resource pools. Original resource pool restricted cpu limits and reservations and memory limits and reservations = “SETTINGS”.
http://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.vsphere.resmgmt.doc/GUID-60077B40-66FF-4625-934A-641703ED7601.html?resultof=%2522%2572%256f%256f%2574%2522%2520%2522%2572%2565%2573%256f%2575%2572%2563%2565%2522%2520%2522%2572%2565%2573%256f%2575%2572%2563%2522%2520%2522%2570%256f%256f%256c%2522%2520
Not sure if shares apply to siblings resource pools only. Because if you look in Resource Allocation for the cluster (or host if it’s not in a cluster), shares and respective percentages are calculated as a total which also includes the hidden root resource pool. This is what’s described in the following article and has to be kept in mind for proper design and usage of resource pools:
http://vmtoday.com/2012/03/vmware-vsphere-resource-pools-resource-allocation-revisited/
I think it is A too but because B, C and D talk about configuring settings on the root resource pool. AFAIK one cannot set those on the root resource pool.
I agree!
“The memory, storage, and/or CPU settings”
“A” Talks about storage too…is it a correct option for resource pool settings…why D can’t be the answer.
Because as Bonno says: one cannot set those on the root resource pool.