Which of the following are true about the share value for a virtual machine after it has
been added to a Resource Pool?(Choose Two)
A.
If a previously defined custom share value exists, the %Shares value is maintained
B.
If a previously defined share level (high, medium, low) exists, the %Shares value is
adjusted to reflect the total number of shares in use in the Resource Pool
C.
If a previously defined custom share value exists, the %Shares value is adjusted to
reflect the total number of shares in use in the Resource Pool
D.
If a previously defined share level (high, medium, low) exists, the %Shares value is
maintained
Explanation:
vSphere Resource Management Guide, ESX 4.0, ESXi 4.0, vCenter Server 4.0, page
38-39
When you move a virtual machine to a new resource pool:
If the virtual machine’s shares are high, medium, or low, %Shares adjusts to reflect the
total number of shares in use in the new resource pool.
If the virtual machine has custom shares assigned, the share value is maintained.
The correct answer should be B & C not A & C. According to the explanation, if a virtual machine has custom shares assigned, the “share value” is maintained, not the “% share value”.
The “%share value” will always change as virtual machines are added/removed from a resource pool. If it has a custom share value, lets say “1500 shares”, when it is moved to another resource pool it will still have “1500” shares but its “% of shares” of the total resource pool will vary depending on the relative number of shares it has in relation to other virtual machines in the resource pool.
Base on the explanation, I think A & B are correct answer.
I’m confident “A” is not correct. Share value and % Share value are not the same thing as I explained in my previous comment. If a VM1 has a custom share value of 1500 shares in a resource pool with another VM that has a share value of 1500 shares.
VM1’s share value is 1500 shares and its % share value is 50%.
If you then move VM1 to another resource pool that is shared by another VM with a share value of 3000 shares.
VM1’s share value is maintained at 1500 shares, but its %share value is diluted to only 33%.
I agree with Garfy.
The answer should be B & C
Ok I talked to my VM instructor about this, and while he doesn’t know for sure, he said that #1 this is a poorly worded question. #2 The intent of the question is to verify that candidates know that the VALUES set in custom do not change. Granted the CALCULATED PERCENTAGES change based on the total shares, but by the term “VALUE” he believes (maybe correctly, maybe not) that they’re looking for the test taker to know that the VALUE changes for High/Med/Low, and the VALUE stays the same for custom.
There’s also a footnote that mentions: “Because share allocations are relative to a resource pool, you might have to manually change a
virtual machine’s shares when you move it into a resource pool so that the virtual machine’s shares are consistent with the relative values in the new resource pool. A warning appears if a virtual machine would receive a very large (or very small) percentage of total shares.”
I.e. VMware wants students to be aware that if they have custom values for VMs, then move them into new resource pools, they could end up with wildly-skewed resource allocation
So, for the test, I’m going to put A and B, but lets be honest, this is a POORLY worded question