No set level on a virtual computer memory

Similar Questions

• How do I dynamically change the the number of vCPU and amount of a virtual computer memory?

  Hi all

  My first question is how do I dynamically change the number of vCPU and amount of a computer virtual memory when the virtual machine is running? If so, this may be achieved by writing a few scrpits to inform the hypervisor?

  My second question is, I can start a virtual machine in KVM with the number of vCPUs and amount of memory configured in the startup script. I don't know if this is supported in vmware ESXi?

  I couldn't find the answer in the ESXi 5.0 user guide.

  Your suggestion will be highly appreciated.

  Cheng Wang

  http://sparrowangelstechnology.blogspot.com/2012/11/hot-add-of-CPU-and-memory-to-virtual.html

  You can change the ram and the CPU, but it must be enabled.

  by default, only it isn't.

  See this link to change the settings of vm via powercli

  http://ICT-freak.nl/2010/05/07/PowerCLI-script-to-schedule-memory-and-or-vCPU-updowngrade/

• Too low Windows virtual computer memory

  I get a message balloon: the virtual machine Windows memory too low your system is low on virtual memory, Windows increases the size of your vertual memory paging file. During this process, the application memory for some applications may be denied. For more information, refer to the help. How can I fix it?

  Increase the amount of the page file in the system control panel > advanced >...

• Incorrect value for its use of virtual computer memory in Virtual Center

  Hello everyone

  I have a problem to track usage of the memory of some virtual machines in Virtual Center.

  The virtual center of the opening interface is reported to me that virtual machines have a use of memory about 95%. Accessible through the console of the machine, however, the Task Manager shows me a memory about 15-20% and 4% of the processor usage.

  The machines in question are among other the domain controller is working correctly.

  Thanks in advance

  Hi dmilazzo,

  I had this problem a few weeks ago. After updating my ESX hosts, this problem has been resolved.

  Are yours up-to-date?

  René

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• Required physical server Vs Virtual Machine memory

  Is there a white paper explains why we we need less memory in the Virtual Machine as compared to the physical Machine.

  The problem is that my boss wants to know why this is so. It is very difficult for me to explain this to him, he wants to see a white paper OR some article on the internet.

  As long as a VM administrator, I know that we can add and remove a virtual computer memory but it will be not that simple when it comes to physical servers. I suggested to him that we must follow a standard, and if there is a requirement for business we can increase or decrease is according to the needs. So when the salesman comes in they give us specifications for the physical server and not the virtual and there is always an argument that why should have 6-8 GB memory VM from the outset. In order to avoid everything that the arguments it needs more proof.

  Thank you

  Here is a simple explanation of why VM need less memory.  Transparent page sharing.

  If you install a virtual of Windows 2008 SP2 single server machine, lets assume that it uses 500 MB of RAM while sitting idle.  It's basically all running components loaded into memory.

  If you then put a same VM, the new machine virtual don't re-charge not the exact same components in memory.  ESX will see the same exact memory block has been loaded into the memory of the host Server1 (phyiscal material) and then simply point the virtual machine to the component already loaded into memory.

  After the virtual machine has been loaded and GST has kicked, you will probably find that for 2 identical virtual machines you use not only 650MB of memory (not 1000 as expected).  This is because 80% of the components has need of the new virtual machine, it only uses the existing memory blocks, instead of duplicating.

  Now, repeat this operation on 10 VM and assume only 50% of the memory is the same between them... it is still a huge economy of memory.  In this case, since each VM Windows is really loading only 250 MB of itself in memory and split the rest, technically you don't need to allocate 2 GB of RAM for each virtual computer... you can easily get away with putting 1 to 1.5 GB on this server and I have always the same ratio of available memory for the programs that you would do if it was a physical server.

• Computer memory virtual is increased from 6 to 8 GB and now vm fails to power on with the error massage not enough resources to meet the HA failover, attached screenshot

  Computer memory virtual is increased from 6 to 8 GB and now vm fails to power on with the error massage not enough resources to meet the HA failover, attached screenshot

  The message is usually due to the Admission HA and reservations control configuration memory set on one or more virtual machines. With the default configuration HA calculates the sizes of slot based on the memory and CPU. Any reserve on a virtual machine could increase the size of the slot and lead to fewer available seats. What you can do is either to reduce (or eliminate) reservations about the VM (s) or set admission control to a percentage rather than the host failures tolerated.

  André

• Cannot modify memory and CPU of the parameters on a virtual computer running - vSphere 4

  After a new installation of vSphere 4, I created several virtual machines and P2V had a couple as well.  DRS and HA was set up, and everything worked well.  If I understand correctly, I should be able to change the settings of RAM and the processor to a virtual computer running, but they are greyed out as with previous versions.  I can change them if the virtual machine is shut down.  No idea why this?

  Thank you!

  1 VM should be version 7 of material.

  2. you must set the "Allow memory hot add" powered off mode.

  Only after this, you can add memory to the virtual machine performance. Also, don't forget that Windows 2003 and 2008, Enterprise Edition and Datacenter Edition support this.

  ---

  VMware vExpert 2009

  http://blog.vadmin.ru

• need to reconfigure the virtual computer after deployment of the vm

  Hi all

  I have a script to deploy a computer virtual to a CSV file. I need to change the configuration of virtual machine (CPU and memory) after the deployment of the vm. where the name of the virtual machine should be taken to csv. So any help is appreciated.

  Attach the script used. (downloaded and works fine)

  $vms = import-CSV D:\vm-deploy\vm-deploy.csv

  {foreach ($vm to $vms)

  $Template = get-model $vm.template

  $VMHost = get-VMHost $vm.host

  $Datastore = get-data store $vm.datastore

  $OSCustomization = get-OSCustomizationSpec $vm.customization

  New-VM-name $vm.name - OSCustomizationSpec $OSCustomization - VMHost - $VMHost model $Template - $Datastore - Datastore RunAsync

  }

  # This cmd need to run after the vm deployment completed. The virtual computer name must come from the 1 column of the CSV file

  Set-VM $vmname - NumCpu 2 - MemoryGB 5 - confirm: $false

  Write-Host "All VMs deployed" - ForegroundColor Green

  Disconnect-VIServer-confirm: $false

  CSV file looks like this

  Name, host datastore, Template, customizing

  Test-VM,vm-dep-test,ESX02,P5-vm-stage,vm-deploy

  Thanks in advance...

  A simpler, but not optimal, solution is to use the Wait-job cmdlet.

  Something like that

  $vms = import-CSV D:\vm-deploy\vm-deploy.csv

  $tasks = @)

  {foreach ($vm to $vms)

  $Template = get-model $vm.template

  $VMHost = get-VMHost $vm.host

  $Datastore = get-data store $vm.datastore

  $OSCustomization = get-OSCustomizationSpec $vm.customization

  $tasks += new-VM-name $vm.name - OSCustomizationSpec $OSCustomization - model $Template - VMHost $VMHost '

  Data - $Datastore - RunAsync store

  }

  Waiting-task-task $tasks

  {foreach ($vm to $vms)

  $vm.name set-VM - NumCpu 2 - MemoryGB 5 - confirm: $false

  }

• Can I migrate a virtual computer to a new family of CPU? -Cisco Call Manager PUB/SUB

  I currently have 2 host VMware ESXi 4.1:

  1. Dell PER905 - running 16 x 2.39 GHz (core) CPU / Quad-Core AMD Opteron (tm) Processor 8378 (processor type)

  2 cisco UCS C260 M2 (BASE-2646) - running 20 x 2,393 GHz (core) CPU / Intel (R) Xeon (R) CPU E72870 (processor type)

  
  

  The main objective is to move 2 VM of the Dell host to the host of Cisco, the reason is because Cisco Support said that the virtual machine requires an Intel and not AMD they are currently.  I currently have a Publisher Cisco Call Manager and Call Manager subscriber residing on the host of Dell, they are constructed (non - OVF) on this machine some time ago.  We started to have problems with them and ultimately Cisco indicated above.

  
  

  A few questions come to mind, can someone please shed some light on them for me?

  1. can I migrate these 2 AMD to Intel VM, without her damage/destruction of the virtual machine?  What that is the answer may be, can you explain to me the why?  The answer to the migration of the CPU is dependent on the guest OS or what?  I ask because I did this successfully on a Windows Guest OS virtual machine, but I guess it is that Cisco makes me hesitate/question.

  2 would it not be better to each virtual machine rebuilt on the new host, rather than through migration for the purposes of the CPU?

  3. What is the recommended method to endorse these VM, before proceeding with the migration?  I'm not talking about save data in the call manager for reasons that I will perform a backup it first.  I ask more along the lines of - for the love of the virtual machine itself.

  1. can I migrate these 2 AMD to Intel VM, without her damage/destruction of the virtual machine?  What that is the answer may be, can you explain to me the why?  The answer to the migration of the CPU is dependent on the guest OS or what?  I ask because I did this successfully on a Windows Guest OS virtual machine, but I guess it is that Cisco makes me hesitate/question.

  You should be able to perform a cold migration. The concern is the guest operating system level.  The Cisco device is probably a Linux distro.  The distribution must use the AMD64 instruction set (Intel 64 compatible) and theoretically should migrate fine.  However, if the guest what OS was improved the AMD CPU instructions, he can expect these features when you restart.  We have at least a virtual computer in our environment that we need to stick to a certain family of Intel processor because the software license dig and binds to it, but this is the only scenario that I have met.

  2 would it not be better to each virtual machine rebuilt on the new host, rather than through migration for the purposes of the CPU?

  I feel better on the redeployment, but if the migration is successful and applications run stable, then you reaped just the benefits of virtualization.

  3. What is the recommended method to endorse these VM, before proceeding with the migration?  I'm not talking about save data in the call manager for reasons that I will perform a backup it first.  I ask more along the lines of - for the love of the virtual machine itself.

  You could do something as simple as the cloning of a copy.  Depending on how you are approved for vSphere, you can have the POS to back up your virtual machine.  You can also use a tool such as VMWare Converter or Veeam Backup and replication. Given the importance of these virtual machines, I would get at least 2 backups of different type.  You should be able to validate any backup with VMWare Workstation prior to migration.

• IOPS / s & latency for each virtual computer

  It's my first time to write a script to metrics out of the virtual environment and I'm trying to get out of the latency of disk IOPS and total / s disk for each virtual machine in the environment.

  Here are the relevant excerpts I have at the moment:

  #Get powered on virtual machines

  $VMs = get - VM? {$_.powerstate - eq "Receptor"}

  #Loop through each virtual computer

  {foreach ($vm to $VMs)

  $dskreadlatency = get-Stat-entity $vm - Stat "disk.totalreadlatency.average" - Start $start - finishing $end

  $dskwritelatency = get-Stat-entity $vm - Stat "disk.totalwritelatency.average" - Start $start - finishing $end

  $dsknumberwrites = get-Stat-entity $vm - Stat "virtualdisk.numberwriteaveraged.average" - Start $start - finishing $end

  $dsknumberreads = get-Stat-entity $vm - Stat "virtualdisk.numberreadaveraged.average" - Start $start - finishing $end

  }

  #setting fields to the averages of the stats (I have 4 of them)

  = [string] $fieldX ([Math]: Round ((($dskYYY |))) Measure - Object - average value). Average), 2))

  Unfortunately, I get 0 for all these statistics.  My level settings are all set to 2.  It would be awesome if I could help in this regard.

  Just to make sure that the performance data entry process are correctly configured on vCenter, you see the data for these counters on the performance for the same time interval tab?

• Running a Windows 7 virtual computer in Windows 7

  I need to set up a computer virtual of Windows 7 on a pc running Windows 7 already due to software that is in conflict with each other and I need to know if I need a second license for it or I can even use the license for the local computer and the virtual computer?

  You will need a second license of full version:

  http://Windows.Microsoft.com/en-us/Windows7/get-a-new-Windows-product-key

• Behavior of a virtual computer when it is placed on Standard vSwitch with multiple active adapters

  Hey everybody

  Right now I'm focusing on the aspect of vSphere network design and I have a question about this:

  If I have a vSwitch with a group of ports and attached to this group of ports there are 2 vNIC or NIC better and I chose road based on the Port ID and all cards are active, what happens to machines when I unplug a power cord? Lets assume vm1 is vnic 0 and vm2 on vnic1 and I unplug the power cord of vnic1. VM2 will switch automatically to vnic0 or should I restart? How should I take care of this problem when there is no automatic failover? Create an etherchannel and two assets assets adapters?

  Thank you and best regards

  Michael

  Hi Michael,

  your virtual computer will be moved to the other vmnic again access to the network after the failure. No reboot needed.

  It is indeed a very simple way of load balancing / team. When you turn on a virtual machine is bound to a vminc. As you said correctly for this example, vm1 goes to vmnic0, vm2 to vmnic1, to vmnic0 vm3 and vm4 to vmnic1.

  This is the default setting as it is quite simple and you don't need any additional switch configuration.

  If you want to change this behavior, for example to build an etherchannel, remember to change the policy on the vSwitch / exchanges, which would require a load balancing of "route based on the hash of the IP.

  Tim

• How to make a virtual computer to connect to a CD player with an ISO mounted when you start the virtual machine?

  I am the creation of virtual machines using PowerCLI 5.5 on vSphere 5.0; and while the virtual machine is turned off, I am able to mount an ISO on a CD player and change the boot order to boot from the CD-ROM (for another post).  I have the flag startConnected set to true, but am not having much luck getting the virtual machine to connect to the CDDrive

  $cdObj = $Vm | New-CDDrive - IsoPath $isoPathName - StartConnected: $true

  If ($cdObj - no $null)
  {
  #Power off VM if it is on
  $VmState = $Vm.PowerState
  
  If ($VmState - eq "Receptor")
  {
  $Vm | Stop-Vm-confirm: $false - ea 0
  }

  $BootHardDiskName = 'disk 1 '.
  $VmView = get - VM $VmName - Server $serverObj.Name | Get-View
  $HardDiskDeviceKey = ($VmView.Config.Hardware.Device |) Where-Object {$_.} DeviceInfo.Label - eq $BootHardDiskName}). Key

  $BootableHardDisk = new-Object - TypeName VMware.Vim.VirtualMachineBootOptionsBootableDiskDevice - property @{'DeviceKey' = $HardDiskDeviceKey}
  $BootableCDRom = new-Object-Type VMware.Vim.VirtualMachineBootOptionsBootableCdromDevice
  
  #Set for CDRom boot order
  $BootIso = new-Object VMware.Vim .VirtualMachineConfigSpec - property @ {}
  "BootOptions' = New-Object VMware.Vim.VirtualMachineBootOptions - property @ {}
  BootOrder = $BootableCDRom
  }
  }
  
  #Set VM from the start settings at the start of the first CD and forces the display to update (sometimes delayed)
  $VmView.ReconfigVM_Task ($BootIso) | out-null
  $VmView.UpdateViewData ("Config.BootOptions.BootOrder")
  
  #Power on VM
  $Vm | Start-VM-confirm: $false - ea - global 0EV: vmOpsError | out-null

  When I start the VM, it does start the ISO.

  If I go to vCenter, the CD is pointing to the ISO file, but the 'Connected' to change settings option is not checked;  I can restart the VM of vCenter and then the VM restarts the ISO, but not in the script.

  I even put code to add a lead time of 5 to 10 seconds; I restart the virtual machine twice in the script and I can't CD to connect to start the virtual computer.

  Appreciate any suggestions.

  Maureen

  Have you tried to do a

  Game-CDDrive - CD $cdObj - connected - confirm: $false

  immediately after the start-VM?

• Troubleshooting performance problems with the mail server on the virtual computer

  I have a virtual machine with a mail server installed on a windows OS. But all of a sudden, my clients on the server response times decreased significantly.

  This could be the cause of this problem?
  It could be to do with the network, storage, or resources, but I don't know what steps I could take to determine fault

  Would someone mind helping me with the steps I could take to solve this problem?

  Thank you

  The below document page 20 and 21 accurate meters, you should look at the virtual machine level.

  http://www.VMware.com/files/PDF/Exchange_2010_on_VMware_-_Best_Practices_Guide.PDF

  These counters can be used for any virtual computer not only Exchange.  If you are familiar with ESXTOPs I believe that the best way to deep dive in the diagnosis of performance problems.  Also here is a link for these parameters.

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=1008205

  This link takes you to http://communities.vmware.com/docs/DOC-9279 which has the description on the stats.

• Printing to a printer from a virtual computer network

  I hope I'm not too much of an easy situation, but is there a FAQ thread for printing on a network from a virtual computer printer please?

  
  

  I just spent an hour setting up a network printer in a VM with forward gun they realized that, then my network is 192.168.1.1, (the printer is 192.168.1.113 and side Mac can see another printer on the network) virtual machine network seems to reside at 192.168.236.2

  Canon has a process of installing network printers, but he can't see the network printer when he's looking for printers.
  

  
  

  They say that my computer is not on the same network where the printer is located.
  

  You're running bridged or NAT networking?