Scenario: IT management has decided which server hardware model to use for new XenApp and XenDesktop Sites and needs guidance on sizing the Hardware Layer.
Click the Exhibit button to view the host details.
A Citrix Architect is planning to install XenServer 7.x on this host which will be used to host only XenApp servers.
How many vCPUs should be consumed to deploy XenApp servers with high performance, considering the over-subscription ratio?
A. 32
B. 24
C. 16
D. 48
|
Download Printable PDF. VALID exam to help you PASS. |
 |
I think B is correct but not with that calculation, because:
1. some articles descrive: You should consider pCPUs (including Cores) only. Hyper-threading does not actually double the available pCPU. Hyper-threading works by providing a second execution thread to a processor core
2. 1,5:1 = 1,5 vCPU’s to 1 pCPI (2×8) x2 = 32
1,5:1 so you need to do 32×1,5 = 48 (But this is no correct because hyperthreading does not multiply pCpu
Correct Calculation
2 sockets x 8 cores = 16 pCPU’s
1,5 vCPU per 1 pCPU, so 16×1,5 = 24.
1,5:1 = 1,5 means 1,5 vCPU to 1 pCPU.
2 sockets x 8 cores = 16 cores with HT enabled = 32 pCPU / 1.5 = 24
should divided 1.5 and times 1.5
D is correct.
Hyper Threading is considered on the calculation.
24 is correcnt. You dont count HT CPU only physical. sp 2×8=16 and then 16×1.5=24
I think answer D
2 (sockets) x 8 (cores) = 16 x 2 (hyper threading) = 32 x 1,5 (over commit) = 48