Virtual machines: 1, 2 or 4 processors

Similar Questions

• Virtual machine appears a CPU in the system while it is assigned two

  Hi friends,

  A virtual machine is assigen with two processors, but it appears that a single CPU in the system windows 2003

  Why and how fix it?

  Thank you.

  In the Manager of tasks, reviews, history of CPU, you have the option to display a verified by CPU graph?

• How to check if a virtual machine has active hotplug?

  Hello

  I am trying to create a workflow that is supposed to change the amount of vCPUs and memory on a virtual computer.

  (for those who arrive suspicious: I'm continuing / edition work of Munel, another user here)

  Since we have different types of VMS, I need to check if a virtual machine is capable of hotplugging processors and memory.

  Now the workflow is designed in a way, it first tries to change the values, and if it runs into an error, it checks if the error code says that the vhardware is not active hotplug then stop the virtual machine or throws an exception.

  This is not a very nice solution and must be changed.

  Is there a way to check the ability before hotplug actually trying to change the vhardware?

  Thanks in advance

  Andreas

  Hi Andreas,

  To check if a virtual machine has a hot connection activated, you have the following options:

  Check if memory hot add is enabled:

  virtual_machine_instance.config.memoryHotAddEnabled

  Check if the CPU hot add is enabled

  virtual_machine_instance.config.cpuHotAddEnabled

  Check if the hot removal of CPU is enabled

  virtual_machine_instance.config.cpuHotRemoveEnabled

  If you have the vSphere client, tree options above are located in the Configuration dialog box of the virtual machine on the tab Options-> memory/CPU hotplug.

  Hope this helps,

  Martin

• Experience with the moving of virtual machines

  I want to ask this question, the opinion of other users in the forum.  I have a host ESX (3.5, 163429).  I'll build a new ESX host and the patch at the same level.  Are there any pitfalls to move existing virtual machines to the new ESX host?  The material will be very different, because it is a newer than my current ESX host server.  I do not plan on using vMotion to move these VMs.  All the tips are greatly appreciated.

  Virtual HW exposed to VMS is identical except for the cpu, VMs are not aware of the real chipset, controllers, memory, scsi, and so on. Cold migration to intel AMD does not need to change anything inside the virtual machine. However, the physical processor *IS* visible to virtual machines. So, if you are running VMs that loading a specific kernel for processors Intel or AMD CPU (like Linux), you may have a problem.

• Virtual machine has 12 virtual processors, but the host only supports 8?

  Hi all I am using ESX 5.1 and have a machine Windows 2012 R2 Standard of virtual (vmx-09) comments that I'm moving to 8 processors to 12 processors.  But when I turn on the virtual machine after changing the UC 12 I get the error message

  "Virtual Machine has 12 virtual processors, but the host only supports 8. The number of virtual processors can be limited by the selected guest OS for the virtual machine or the granting of licenses for the host".

  Now, I know that 2012 R2 Standard Windows can handle 12 processors and I thought that ESX 5.1 could also, but I'm wrong?  This is the Standard of vSphere license 5.  Thank you!

  Hello

  vSphere 5.1 Standard license has a 8 vCPU per VM limit.

  Company = 32 vCPU

  Business + 64 vCPU

  You must upgrade to vSphere 5.5. This can be done with your vSphere license 5, as it is for all versions 5.X of vSphere and vCPU limit has been deleted in 5.5.

  So you can have as many vCPU per VM that your host has logical cores.

  Tim

• Cannot add additional processors to a virtual machine.

  I have a DELL PowerEdge R720 host running ESXi 5.5 1474528 and there are 3 VM.

  I am using vCenter Server 5.5.0 Build 1476327 Essentials accessing via the web client of vSpere

  40 logical processors

  20 CPU X2.20 GHz

  2 taken

  10 carrots per socket

  ALL of my virtual machines are windows X 64, version 10 hardware servers

  4 CPU file server

  RDS 4 CPU

  Veeam DAS proxy server 1 CPU

  I can not add any extra CPU on the third server. I can adjust the CPU count on the other two VM, but not the third.

  License is

  VMware vSphere Essentials 5 more (unlimited cores per processor)

  Hi, have you tried downing the virtual machine and see if you can change the CPU then?

• Impossible to allocate additional processors (virtual machine has 8 virtual processors, but the host only supports 4)

  Dear team,

  I want to devote 8 vcpu to one of the virtual machine, but it gives following error

  "Virtual Machine has 8 virtual processors, but the host supports only 4. The number of virtual processors can be limited by the selected guest OS for the virtual machine or the granting of licenses for the host".

  want to know the weather, that it depends on the os under license or guest vm

  

  Hello

  It is the restriction of license. 4-way vSMP is the right thing, you stressed in your screenshot.

  If you upgrade your server and license to vSphere 5, you can allocate 8 vCPU with Standard license and 32 vCPU with your license of the company!

  Concerning

• Poor performance of the processor of the virtual machine

  Hello

  We have an esxi Server 5. Theres only one virtual machine running. It is A SBS 2008. The server is slow, it seems to depend on the CPU (XEON 5502 2 cores with hyperthreading) use. The windows Task Manager shows the use of 60 to 75% most of the time and often 100%.

  But the performance vmware (vsphere) table shows only 20% up to 60%, although the vitrual machine CPU resource reservation is high and unlimited. Is it possible, to give the virutal machine more CPU power?

  Thank you very much for your help!

  MIchael

  

  

  

  It seems that your processor has no hyperthreading.  Specifications Intel http://ark.intel.com/products/37092/Intel-Xeon-Processor-E5502-4M-Cache-1_86-GHz-4_80-GTs-Intel-QPI

  With all four cores assigned to a single virtual machine probably causes CPU performance issues.  Have you checked the CPU Read values?  If you see more 1000msec by vCPU, you can expect performance degradation.

  Chaning the VM from four to one or two vCPUs shouldn't be a problem, unless you have software running which consumes a lot of time processor.  I ran SBS2011 on a single vCPU with no problems.

• Maximum virtual processors per virtual machine

  I recently bought vSphere Essentials 4.0 and I'm basically happy with it. Before you buy, I was told that it supports up to 2 processors each with up to 4 cores of each.  Any reasonable person would take this to mean that you can create computers guests with up to 8 virtual processors (VCPUs). However, after installation I found I could only create machines with up to 4 VCPUs! (I take that - I can create them, but they does not )

  When I brought this up to the sales representative, he gave me a few reasons that I still don't understand and then gave me an extremely expensive to get up to 8 VCPUs option: more than 4 times the price of the original vSphere. I still don't understand how vSphere can claim support up to 8 cores, but don't allow you to run virtual machines with up to 4 cores.

  I went back and re-read the literature and still cannot find anything it either by declaring this limitation. Can someone ' splain this to me?  I think that VMWare owes me another 4 VCPUs.

  Company is the single permit which offers 8 vcpu, they were referring to your driver's license can go on 2 cpu to 4 cores each. but I thought it was up to 6 cores per processor...

  There is an entire document showing the differences, http://www.vmware.com/files/pdf/vsphere_pricing.pdf I know than this one but im sure that ive seen better

  See you soon

• Processor type and speed of Virtual Machine?

  It's the supplier asking for speed and the type of machine that we use.

  Currently, we use a cluster of 3 hosts vSphere with 2 CPU on each host:

  E7440 @ 2.4 GHz

  E7440 @ 2.4 GHz

  X 5460 @ 3.16 GHz

  We have assigned 2 vCPU and 2 GB of RAM for this Virtual Machine.

  What CPU specifications should I give it to the seller?

  Thank you

  Give the seller any CPU speed will make the happier.  Since CPu speed will change as the system moves, its going to be everything the host resides on when check it out you.

  PS - are you really sure, you have to give 2 vCPU... best results are usually with a single processor... even when sellers whine they need 2 CPU.

• How many virtual processors on a virtual machine?

  Hi guys,.

  I have ESX35 install on a ML570 G3 with have 4 CPU, active hyperthreading.  In the tab set up, the number of logical processors is 8, by the attached screenshot.  I've lowered to VI3 VI4 and have 4 individual licenses of the CPU.  The sales representative told that the license goes with physical CPU, up to 4 cores per processor.  However when I created a VM, I can only put in place for a maximum of 4 virtual processors.  Is this correct?  I thought that I can assign up to 8 virtual CPUs in each virtual machine.

  THX.

  Hello htt. Unfortunately, to use 8way vSMP you must the Enterprise more than vSphere license. Please see the following page for more information.

  http://www.VMware.com/products/vSphere/buy/editions_comparison.html

  See you soon

  Kevin

• Virtual machine has 8 virtual processors, but the host only supports 4... ?

  Hello

  My setup is a VSphere cluster with 4 guests each with:

  E5450 3.00 Ghz Dual Xeon Quad & 32 GB of Ram.

  I run a number of virtual machines, mainly Windows 2003 Server Enterprise. Most of them is running on 2 or 4 virtual processors.

  I tried to create a new virtual machine with virtual cpu 6 or 8 and 16 GB of ram. When I tried to turn on the virtual machine, I got the message below:

  Virtual machine has 8 virtual processors, but the host supports only 4. The number of virtual processors can be limited by the OS, etc...

  Now, I checked my licenses and they are for each host that I have:

  Company of VSphere 4. 1-6 cores per processor. 2 cpu by assigned host.

  Thus, it cannot be a problem with the license...

  Any ideas?

  Hello and welcome to the forums.

  The Enterprise Plus edition is required for vSMP 8 channels.  You can check in the vSphere editions comparison.  The Enterprise edition will be limited to 4 vCPUs.

  The 6 cores per processor refers to the ESX host itself and directly relate to the SMP virtual machine.

  Good luck!

• Affinity processor for a virtual machine

  I have a lot of CPU 8 on which I have installed ESX 3.5 U3. I also created a virtual machine Windows 2003 Server SP2 with 2 CPU is assigned to the.

  I'm trying to set the processor affinity for this virtual machine to use 2 of my physical processors. I see now on the tab Advanced CPU, I am able to select all available 8 physics of the processor. So now I'm a bit confused regarding if VMware allows scaling of my machine virtual to use all 8 CPU when my virtual machine is only 2 CPU?

  Now if the above is true, and I am to be allowed to set the affinity of the virtual machine to the all 8 CPU, then why is this maximum limit of the processor for a virtual machine is only 4? A stupid question probably but I'm really confused?  :|

  Hi confused,

  Yes, the user interface is a bit confusing. As RParker said, basically what you are doing when you assign the processor affinity are to identify the nuclei on which the vCPU is eligible to run on. At no time will be the VM scheduled to be run on carrots than what there vCPUs, so he will never have access to a capacity more than expected.

  The processor affinity is one of those features that's been around since 'the beginning' and its utility is really a bit blurred. I've heard of cases where users were running Citrix workloads configured with 2 vCPU and assigned the processor affinity for each virtual computer with the result of improving the performance. I wonder this because I never saw myself, and have a decent knowledge of how works the vmkernel Scheduler, it make much sense.

  I would encourage you (and anyone else reading this) essentially forget that the processor affinity is an option. Use it can cause significant performance degradation (if, for example, you pin a VM through two nodes NUMA, rather than keep vCPUs all in the same node) and break features (VMotion, DRS and who knows what else in the future).

  Ken Cline

  VMware vExpert 2009

  VMware communities user moderator

  Blogs about: http://KensVirtualReality.wordpress.com/

• 1 or 2 processors? 32 or 64 bit? for virtual machines

  I had a discussion with the network administrator about using 2 processors and OS 64-bit for virtual machines.

  It uses 1 proc and 32-bit on Proliant G5 servers for virtual servers ordinary.

  When it will be beneficial to use 2 procs and 64 bit?

  THX.

  Hello.

  When it will be beneficial to use 2 procs and 64 bit?

  It will be useful to use 64-bit when you have an application that you want to run 64 - bit, and it will be useful to add a second processor when you discover that a vCPU is not enough.  If by 'regular' virtual servers, you're talking low-end Windows servers, then the 32-bit single vCPU approach will be generally better.  Without knowing more about your applications or operating systems, it is difficult to give a more precise answer.

  Why do you think that you might need for 64-bit or 2 vCPUs?  Can you elaborate on what you put on foot?

• The processor of the virtual machine statistics

  How to change the script below to reach the underside of the elements, given

  1. when it collects the past 30 days stats it must ignore all measures on Saturday and Sunday.

  2. currently, he checks the monthCPUAvg of each virtual machine if it is greater than 80% and add it to $report, I need to check in the last 30 days (except sat and Sun) if the VM continued 80% usage for all 6 hours, if yes, then add to $report.

  $import = Get-VM
  $report = @()
  foreach ($vm in $import) {
      $Interval = "30"
      $IntervalFinish = Get-Date
      $IntervalStart = $IntervalFinish.addDays(-1 * $Interval)
      $CPUAvg = $vm | Get-Stat -Stat Cpu.Usage.Average -Start $IntervalStart -Finish $IntervalFinish
      $vms = "" | Select-Object VMName, CPU, MonthCPUAvg
      $vms.VMName = $vm.Name
      $vms.CPU = $vm.numcpu
      $vms.MonthCPUAvg = [String]([Math]::Round((($CPUAvg | Measure-Object -Property Value -Average).Average),1))
      $report += ($vms | Where-Object{$_.MonthCPUAvg -gt 80})
  }
  

  Try this (I use 30% as the threshold here):

  $import = Get-VM | where{$_.powerstate -eq "PoweredOn"}  $report = @()   foreach ($vm in $import) {     $Interval = "7"   $IntervalFinish = Get-Date     $IntervalStart = $IntervalFinish.addDays(-1 * $Interval)      $CPUAvg = $vm | Get-Stat -Stat Cpu.Usage.Average -Start $IntervalStart -Finish $IntervalFinish -Intervalmins 120 | Where { (Get-Date $_.Timestamp -Uformat '%A') -inotmatch 'Saturday|Sunday' }    For($i=0; $i -le $CPUAvg.Length; $i++) {    if($CPUAvg[$i].Value -gt 30 -and $CPUAvg[($i - 1)].Value -gt 30 -and $CPUAvg[($i - 2)].Value -gt 30) {      $report += "" | Select @{N='VM Name'; E={$vm.Name}},       @{N='Start Interval'; E={$CPUAvg[$i].Timestamp}},       @{N='End Interval'; E={$CPUAvg[($i - 2)].Timestamp}},      @{N='Avg CPU Interval'; E={[math]::Round((($CPUAvg[($i - 2)].Value + $CPUAvg[($i - 2)].Value + $CPUAvg[($i - 2)].Value) / 3), 2) }}    }  }}$report
  

  Out of the sample of my race:

  Name of the virtual machine	Starting interval	Interval end	AVG CPU interval
  -------	--------------	------------	----------------
  VM1	27.04.2015 08:00	27.04.2015 12:00	58,69
  VM1	27.04.2015 06:00	27.04.2015 10:00	54,86
  VM1	24.04.2015 10:00	24.04.2015 14:00	36.81
  VM1	24.04.2015 08:00	24.04.2015 12:00	50,61
  VM2	23.04.2015 08:00	23.04.2015 12:00	40,76
  VM2	22.04.2015 10:00	22.04.2015 14:00	37,97
  VM2	22.04.2015 08:00	22.04.2015 12:00	40,87
  VM2	21.04.2015 10:00	21.04.2015 14:00	37.6

  Note: It may look like a 4 hour period, but the Timestamp of the third measured value is just indicating the start time of the measurement interval, which lasts for 120 minutes. You can add to the value of output if you use instead:

  @{N = 'Interval end'; E = {($CPUAvg [($i-2)].)} Timestamp). {{AddMinutes (120)}}.