Example of General memory on Virtual Machines

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• Looking for examples of Code clone the virtual machine

  Are there any sample code for cloning a virtual machine using the VISDK webservices? I have programming in C++ but a Java / c# application will also help.

  Thank you

  Jan

  It can include both existing and newly added and other disks components.

  It is correct, you must make sure that the unitNumber is unique, I think that if you pass "-1" it will automatically increment the counters for you

  =========================================================================

  William Lam

  VMware vExpert 2009

  Scripts for VMware ESX/ESXi and resources at: http://engineering.ucsb.edu/~duonglt/vmware/

  Twitter: @lamw

  repository scripts vGhetto

  Introduction to the vMA (tips/tricks)

  Getting started with vSphere SDK for Perl

  VMware Code Central - Scripts/code samples for developers and administrators

  150 VMware developer

  If you find this information useful, please give points to "correct" or "useful".

• ESX 3.5 U5 Virtual Machine memory usage

  Hello

  I have a question about memory consumption I see on my ESX 3.5U5 hosts. I googled around and discover how ESX deals with management of memory... but I'm not sure that I put all the pieces together correctly in my brain. I hope you guys can help clarify this for me.

  I have a few guests but will use one as an example:

  This host has 64 GB of physical memory. There are a number of virtual machines residing on this host and the total amount of memory that I attributed to them is 40 GB. In VirtualCenter, I see on the Summary tab is 21,65/64 GB global memory on the host use and this is due to the fact that not all of the virtual machine are fully utilized.

  Now more confusing part... I've attached a picture that contains screenshots of what I'm about to discuss...

  • In the tab control performance, the host indicates the high memory limit (100%) as being ~ 40 GB. I guess that's because I assigned only this amount of memory. Is it a correct assumption?

  • Why the configuration tab memory doesn't display that Virtual Machines use all 60 GB of memory available? I am not mistaken in assuming this is due to the fact that the host use and wrote to all parts of the physical memory as time passes (for overcommiting and balloon?) I expect this number to reflect either the current amount of memory of memory allocated to each virtual machine or memory present consumption.

  Any idea is appreciated.

  Hello

  Instead of directly answering your questions, I will explain what each image represents. This will explain I hope that what you're seeing and why.

  -At the top image, what it says is correct - this is memory that has been consumed by the virtual machines and may be less than what is given to them.

  -L' the Middle image is to show you the total physical memory that is available for the use of virtual machines after that things like the service console and general system has been deleted. Not what is used or has left, but what total physical memory can be used.

  -In regards to the third graph your hypothesis is correct. It is the memory allocated to the VM. This is different from consumed which is the actual physical memory, use virtual machines.

  After reading my answer I'm not sure I have made better or worse? Let me know if further details are required.

  Kind regards

  Glen

• Need to adjust/reconfiure/tune resouces of cluster of virtual machines by entry into xls file

  Hi all

  I need to adjust the resources of the cluster of virtual machines by entry in the xls file, the files are

  VCPU configured, recommended vCPU virtual machine, CPU requires memory (%), memory configured, Recommended recommended

  for example, the values are:-

  Virtual machine	VCPU configured	VCPU recommended	CPU application Recommended (%)	Memory configured	Memory recommended
  ABC	10 vCPUs	4 vCPUs	77%	40 GB	16 GB

  Then I have to stop the virtual machines and then adjust the values, and then bring the virtual machine. Can someone help me a script for this.

  Make sure that your csv file format is attached.

  

  Import-Csv c:\temp\test.csv | {foreach}

  Get - VM $_. VirtualMachine. Stop-VMGuest-confirm: $false | Out-Null

  do

  {

  Write-Verbose 'VM stops. "

  Start-Sleep - seconds 15

  }

  While ($_.powerstate - eq "Poweredoff")

  Get-VM-name _.virtualMachine $ | Set-VM - NumCpu $_. RecommendedvCPU - MemoryGB $_. RecommendedMemory-confirm: $false

  Start-VM VM-$_.virtualMachine

  }

• Try to change several network adapters on a virtual machine

  Here's what I have to change several virtual machines with an adapter:

  $test5 = import-Csv C:\test5.csv

  {foreach ($vm to $test5)

  $server = $vm.name

  $networkname = $vm.networkname

  Write-host "Changing $server to the new $networkname network.

  Get - VM $server | Get-NetworkAdapter | Together-NetworkAdapter - networkname $networkname - confirm: $false

  # #Start Server

  Write-Host "Made from $server"

  Start-VM $server - confirm: $false

  Write-Host "complete!"

  }

  It looks like a spreadsheet with the name of a column and networkname in the other and sets the adapter accordingly.  It works so much that there is only one network adapter to set... for example if there is a virtual machine with vlan1 for 3 network cards on a virtual machine, it will define all 3 cards to the vlan 1, but if a network card is different from vlan 1 it will fail.  How to fix a vm with multiple NICs?  I tried to separate them by a comma, but he doesn't like it.  Any ideas?

  You can add additional columns in your CSV file.

  Something like that

  Name, NetworkName1, NetworkName2, NetworkName3

  VM1, net1, net2 net3

  VM2, net1, net1 net1

  Then, you can change the code something like this

  $test5 = import-Csv C:\test5.csv

  {foreach ($vm to $test5)

  $server = $vm.name

  Get - VM $server | Get-NetworkAdapter | %{

  if($_.) {Name - eq '1 network card')}

  Together-NetworkAdapter - NetworkAdapter $_ - NetworkName $vm.networkname1 - confirm: $false

  }

  ElseIf ($_.) {Name - eq "Adapter 2")}

  Together-NetworkAdapter - NetworkAdapter $_ - NetworkName $vm.networkname2 - confirm: $false

  }

  ElseIf ($_.) {Name - eq "3 network adapter")}

  Together-NetworkAdapter - NetworkAdapter $_ - NetworkName $vm.networkname3 - confirm: $false

  }

  }

  Write-host "Changing $server to the new $networkname network.

  # #Start Server

  Write-Host "Made from $server"

  Start-VM $server - confirm: $false

  Write-Host "complete!"

  }

• How the hosts finished in a virtual machine? Issue of UPS

  Hello!

  I know this was asked before, but just wanted to clarify

  -I want to use a UPS on my system, which will automatically stop OS X if there is a power failure. I put my WinXP VM fusion do not ask confirmation at the close. I just wanted to know if the inverter triggers a shutdown of OS X, will be the do Fusion VM one "shut down - IE. close the computer"or"suspend "?

  Thank you

  Mike

  Well, that depends on what version of Fusion you use.  IIRC, I believe there was a problem with this a 1.x version of Fusion, although I don't remember with one, but this was corrected at some point, but I don't remember which version.

  I know that with the Fusion 2.0.4 if I stop OS X with a Virtual Machine running, it is automatically suspended because under VMware Fusion (menu bar) > preferences... > General > when a virtual machine is closed: I chose to suspend the virtual machine and confirm before closing the box unchecked.

• virtual machines require less RAM?

  Hello

  I am a .NET developer & SQL to an organization of average size (100s of users of the application). We use VMWare virtual machines for many of our production servers. the guest OSes are Windows Server 2003, but I don't know what version of VMWare.

  I noticed that my SQL production machine has only 800 MB (right click on my computer - & gt; Properties). This seems much too small for a production SQL Server. I asked our admin on this issue, and he said that VMS do not need as much memory as physical machines because they can exploit the memory of the host.

  My question - is this true? IM an ignornant bits on virtual machines, but my first thought would be the guest OS is limited to his own sandbox - if the guest OS is set to 800 MB, how could he 'awareness' of memory additional?

  .. .i would be happy to acquire more information in order to assist in answering this question, such as the version of VMWare. I have access to the guest OS.

  Thank you!

  mast

  You are absolutely right!

  A machine is allocated virtual memory max during the creation and has no way for him to 'acquire' memory additional host at will. If it is a virtual machine running on an ESX Server, there are additional settings to configure. 'Réserve' is guaranteed physical RAM allocated to the VM when it is consumed on, 'Limit' is the physical RAM max, he can get the host and 'shares' will determine the relative priority of the virtual machine when there is a resource conflict. ESX uses several methods for memory management (transparent page sharing, hot air balloon and vmkernel swap) but memory configured virtual machine is the absolute maximum, he can use (unless changed by the admin)

  Hope this helps

  Méhul

  If you find this or other answers useful, pl consider awarding points to maintain the enthusiasm of the forum!

• Settings of CPU and memory of reserve on the virtual machine running...

  Hello.

  I have two virtual machines in production with CPU and memory settings of reservation applied as shown below. I want to adjust these settings of reservation to "zero" for the CPU and memory on both virtual machines.

  I can make these adjustments while VMS are running, or do I need to power their first?

  Any advice would be appreciated.

  Thank you!

  

  

  Welcome to the community,

  Booking of resources being completely transparent for the customer, i.e. a host function, there is no need to turn off the virtual machines. Basically all settings in are available to be changed in the editable GUI generally without interruption of service comments.

  André

• Max memory to a virtual machine when only running on a host?

  Hello

  I have a 4 ESXi host with 65522, 60 MB of RAM as reported capacity.

  I have a single VM RHEL 6 64-bit running on it.

  It is possible to allocate 65524 MB RAM to it, and I did.

  Is this correct? I guess that the host system needs little RAM too, and by assigning all the RAM to a virtual computer, one wonders where the host system gets its RAM from?

  Everything works, but I wanted to make a clear, if someone can help bring me some light on that?

  Hej Ko,

  you could for example in ESXi approve your memory, running 10 virtual machines with 8 GB of RAM on your specific host. ESXi has some management techniques of memory to manage the most effective possible RAM, however if all your virtual machines (or in your case your single VM) would really need all RAM then it does not fit into physical RAM and should be handled by a few different ways, but could end up with what we call vmkernel swap = poor performance.

  For your virtual machine, it is probably better to put in something like 62 GB or similar, as this makes the ESXi host operating system and all your VM fit RAM completely.

• How can I pay for the reservation of memory on all virtual machines to "0"?

  I am trying to write a script that will pay for the reservation of memory on all virtual machines that are invited in a cluster to '0 '.  We have book too much memory, and this setting should allow VMWare facilities manage reserves memory for me.  I have hundreds of virtual machines to update, so I can't do it by hand.  I hope that it is possible via the CLI.

  Can someone help me with this please?

  Matt example work certainly, and I'm sure that he was going to follow up with something similar to this after having confirmed if it worked or not because it is much more serious on the optimization of code for speed, but I'll (try to) save the effort. To test its extract on a cluster of 45 VMS, it took more than four minutes to complete.  The excerpt below took about 25 seconds.  The difference is of course to use the cmdlet "Get-View" and that it can run asynchronously so (it begins a vCenter task and immediately passes the following).  Of course, this will also put more of a strain to your vCenter server, so keep that in mind.

  $spec = New-Object VMware.Vim.VirtualMachineConfigSpec
  $spec.memoryAllocation = New-Object VMware.Vim.ResourceAllocationInfo
  $spec.memoryAllocation.Reservation = 0
  Get-Cluster "YOUR_CLUSTER" | Get-VM | Get-View -Property Config.MemoryAllocation | %{$_.ReconfigVM_Task($spec)}
  

• How to get memory for a virtual machine?

  Hi all

  In vSphere Client > select a virtual machine > summary under general tab, shows:

  Guest OS: Windows XP

  VM version: 7

  CPU: 1 vCPU

  Memory: 1024 MB

  General memory 103,58 MB

  With PowerCLI, how to recover this figure "103.58' for VM 'vm123 '?

  Concerning

  marc0

  You can get the overhead of the memory of all your virtual machines with:

  Get - VM | Select Name,@{N="MemoryOverhead; E={$_. ExtensionData.Runtime.MemoryOverhead/1MB}}

  Best regards, Robert

• vSphere sdk api to get the total memory available for booking of virtual machine

  What vsphere sdk api should I use to get the total memory available to make reservations for virtual machines?

  Here's what I see in the VI client,

  Click on hos-> Configuration:

  Memory

  Physics

  Total xx

  System xx

  VMS 3512,0 MB

  Service xx console

  Now, when I click on the resource allocation tab I see

  3348 MB memory reservation

  Memorey reservation used: 0 MB

  Unreserved memory: 3348 MB

  The question is what value is correct and which are programming API to get all these values (even if it is wrong)?

  If you are familiar with the vSphere API, the easiest way is to browse through the documentation of API reference: http://www.vmware.com/support/developer/vc-sdk/visdk400pubs/ReferenceGuide/index.html and/or using the CROWD (object browser), once you explore a bit, you will begin to understand where some properties of what you see on the vSphere Client

  For the configuration of host memory, take a look at: http://www.vmware.com/support/developer/vc-sdk/visdk400pubs/ReferenceGuide/vim.host.MemoryManagerSystem.ServiceConsoleReservationInfo.html

  To the memory of VM host accessible to the general public, take a look at: http://www.vmware.com/support/developer/vc-sdk/visdk400pubs/ReferenceGuide/vim.ResourceAllocationInfo.html

  To get information "Resource allocation", you must get a reference to the list of local resources for your host: http://www.vmware.com/support/developer/vc-sdk/visdk400pubs/ReferenceGuide/vim.ResourcePool.ResourceUsage.html#reservationUsedForVm

  Even if you do not have a "Resource Pool", there is a defect which still exists. This should get your started

  If you use the VI of Java, you can take a look at the VI Java Browser: http://www.doublecloud.org/2010/02/22/vijava-browser-a-great-tool-to-recommend/

  You must also follow Steve Jin blog (author/creator of connections of vSphere Java open source VI)

  =========================================================================

  William Lam

  VMware vExpert 2009

  Scripts for VMware ESX/ESXi and resources at: http://engineering.ucsb.edu/~duonglt/vmware/

  Twitter: @lamw

  repository scripts vGhetto

  Introduction to the vMA (tips/tricks)

  Getting started with vSphere SDK for Perl

  VMware Code Central - Scripts/code samples for developers and administrators

  VMware developer community

  If you find this information useful, please give points to "correct" or "useful".

• Virtual machine to physical memory

  Hello

  I would like to be able to do the following:

  1. attach the disk external DRIVE with the virtual machine on it

  2. open and run VM

  3. once it is fully charged (start), I want to disconnect my external HARD drive and go somewhere else.

  The question is that how can I detach VMWare, storage of the host (disk image) and completely all load into memory. I have save the changes. I would like to run Windows XP with 512 MB of RAM (I have 4 GB of RAM per machine)

  Now I see, that is the message saying that the external storage is no longer available and I'm looking for the possibility of overcoming this problem.

  Hope this will be possible in the latest version

  Thanks in advance,

  Alexander

  I would like to be able to do the following:

  1. attach the disk external DRIVE with the virtual machine on it

  2. open and run VM

  3. once it is fully charged (start), I want to disconnect my external HARD drive and go somewhere else.

  This isn't a big problem with my computer... I do that occasionally I can confirm it works

  1. create ramdrive with imdisk example

  2 copy the VM to ramdrive

  3. launch the VM to ramdrive

  Only caveat - make sure you write a good vmx file - do not allow a file mainmem so as not to fill the ramdrive

  ___________________________________

  VMX-settings- VMware-liveCD - VM-infirmary

• Virtual machines using 90% or more of memory comments

  I have improved recently (4 guests) two clusters of 3.5u2 ESX ESX 4.

  Almost all virtual machines report now that they use a very large amount of comments.

  The clusters are identical and have the available 268, whose 135GB is used in one, and 70 GB in another

  An example is a Windows 2003 Server (SP2, R2, x 32) VM is no longer used. I have 4 GB assigned and has no service running or anything of your RAM to the virtual machine (it reports 362 MB used in the Task Manager), but in vSphere is recorded as using 4185 MB memory of the host (i.e. more than him), and 98% of the comments in the vSphere client memory. The machine works normally and the consumption of memory continues even after a reboot.

  I've updated the VMTools and the VMHardware at 7, and this has not solved.

  Why almost all virtual machines (in two groups) are this high memory use, when they were not under ESX 3.5? I have also some identical virtual machines (taken from the same model, similar running tasks) that reports correctly their memory usage. About one-third of the VMS correctly report its use, the rest are incorrectly indicating they use 90% + of memory comments

  How can I dagnose and solve this problem?

  Just visited this Ko this morning and it is perhaps related to your problem.

  Patch link

  vcbMC - 1.0.6 Beta

  Lite vcbMC - 1.0.7

  http://www.no-x.org

• can I install a virtual machine of 3 GB memory with physical memory to Go

  Hello!

  really happy you joined today, but I have a problem: I have a 3 GB memory machine and I would like to install a virtual machine with 3 gigabytes of memory, but I have a question whish is worrying me now: according to my physical memory size is it possible?

  Welcome to the forums!

  In general, this is possible, but you may face a very slow system then. You must configure VMware Workstation through its 'preferences' to allow the memory swapping for the guests. The RAM is not physically available is provided by the host operating system swap file.

  If you found this information useful, please consider awarding points to 'Correct' or 'Useful' responses Thank you!!

  AWo

  VCP / vEXPERT 2009