Same host Machine

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• PowerCLi script to check if 2 virtual machines are on the same host

  Hello

  I'm nubby on PowerCLI and I would like to help in the construction of a script.

  The script should check if two virtual machines (named test1 and test2) are running on the same host in a vCenter and send a notification (email), if they do.

  Something similar with affinity / anti-affinite DRS rules (but not through the DRS enabled on vCenter).  My focus is on the affinity. In case this happens, I need vMotion one of them on an another ESXi host(manually or automated).

  What I have done until now is the following:

  Get - VM | Select Name, @{N = 'Cluster'; {E = {Get-Cluster - VM $_}}, '

  @{N = "ESX host"; {E = {Get-VMHost - VM $_}}, '

  @{N = 'vCenter'; E={$_. "(ExtensionData.CLient.ServiceUrl.Split('/') [2]}}, '"

  @{N = "Datastore"; {E = {Get-Datastore - VM $_}} | `

  Export-Csv - NoTypeInformation C:\Scripts\file.csv

  That becomes all the VMS and export a CSV file information:

  Name	Cluster	ESX host	vCenter	Data store
  test2	cluster_test	ESXi_test1	vCenter_test1:443	datastore1
  Test1	cluster_test	ESXi_test1	vCenter_test1:443	datastore1
  For1.local	cluster_test	ESXi_test1	vCenter_test1:443	datastore1
  VM1.local	cluster_test2	ESXi_test2	vCenter_test1:443	datastore1
  VM2.local	cluster_test3	ESXi_test3	vCenter_test1:443	datastore1
  VM31.local	cluster_test3	ESXi_test3	vCenter_test1:443	datastore1

  Thank you.

  Try like this.

  $tgtVM = "test1", "test2".

  Get-VM-name $tgtVM | Group-object - property VMHost | %{

  if($_.) County - gt 1) {}

  $vm = $_. Group | Get-Random

  $esx = $vm. VMHost

  $tgtEsx = get-Cluster - $vm VM | Get-VMHost | where {$_.} Name - not $esx. Name} | Get-Random

  Move-VM - $vm - Destination $tgtEsx VM - confirm: $false

  }

  }

• vCenter Server and Manager on the same virtual machine and on the same host ESXi update that they manage

  Hi all

  I have a question to which I did not respond.

  I have an ESXi 5 on Proliant DL380 G7 server host. I want to install vCenter Server and Manager Update on one of the Server 2008 R2 VM on the same host. I know it's possible, but my question is how Update manager will provide updates to the same ESXi host it will run on? The update is applied every time host must spend in maintenance mode and power off the virtual computer running on this subject which means he'll kill VM where vCenter Server and Update Manager is running and the update will fail right?

  Is that possible at all or the VCS and UM such as a virtual computer operating point is updated to other guests if you have them or vMotion as VM to another host when you want to update the VCS and UM host is running?

  Thanks in advance.

  It will not work.  You will need at least two hosts.  This way you can vMotion the vCenter VM to another host.  From there, you can use VUM.  Otherwise, you will need to patch the host as a stand-alone host.

  See below for patching a standalone host

  http://communities.VMware.com/people/vmroyale/blog/2011/09/15/updating-ESXi-5--single-use-esxcli-how-to

• Internal network for clients on the same host?

  Is it possible to set up an internal network so that if the VMS and B are on the same host and tried to access B (or vice versa), all network traffic will be handled internally by ESXi without the need to go upstream?

  Hello

  This is the behavior by default when two virtual machines are on the same portgroup and in the same VLAN.

  Traffic will not leave the vSwitch in this case.

  If you want the virtual machines only isolate the virtual machines from the outside network, you can create a new portgroup for them and do not add physical network cards to the portgroup.

  This way, the virtual machines can communicate with each other.

  Tim

• vsga and vdga on the same host

  Hello

  Is it possible to have different pool created on the same host and have some VM (pools) that use VSGA and other virtual machines (pool) that are using VDGA on the same host?

  Yes it works very well! (Assuming you have at least 2 GPU:s or Board with more then a GPU as a K1 or K2)

  Linjo

• VShield service Manager installation and vShield app to the same host ESXi

  Hello, I'm planning on vCloud Director assessment in a laboratory with only a single ESXi host.  When I try to install the app vShield service I get the following warning: do not install on a host or a cluster where the VC or the vShield Manager resides. This can cause network problems. The following IP address must be a unique IP address assigned to this unit of App vShield. Please do not use an IP address that is assigned to another machine, including the VC, vShield Manager or any ESX host. Using an incorrect IP address you will need to uninstall and reinstall App vShield on this host. My question is: is it is absolutely impossible to install vShield manager on the same host ESXi as the vShield Manager resides?  Or is it just a bad practice?  What are the ramifications of installing?

  It is a general practice to separate management and resources. What you see is just a warning. When there are very fewer resources available you can do. Make sure that you exclude from the required VM by referring to this post

  http://www.yellow-bricks.com/2012/03/17/excluding-your-vCenter-server-from-VShield-app-protection/

• Pairing of two VMS (always on the same host)

  
  I was wondering if you can marry two virtual machines together so that in the event of a host failure, they will stay together on the same host.

  You can create a rule to DRS for this (keep the virtual machines together). HA and DRS can complement eachother and in the event of a host failure, DRS will stay two VM together. For this purpose on the modification of your cluster settings part. See a screenshot here:

  

• Can migrate a virtual computer to another virtual hosted by the same host computer?

  Deal all,

  I have two questions and I need your help.

  (1) I wonder if a virtual machine can be migrated to another virtual machine that are hosted by the same host ESXi 5.0? (The host has a local hard drive). If possible, how?

  (2) if I have two stand-alone ESXi hosts (host A and B), each host has DAS (local storage) respectively. If the VLC Player is running on a virtual hosted by host A computer and playing a video stream from the Internet, (it is not at all access local storage). This virtual machine can be migrated to host B? (Suppose vCenter is installed)

  Any response will be appreciated.

  Cheng

  You can clone this VM VM A i.e (require vCenter or vmkfstools allows you to clone the drive ONLY) and name VM B. do you want on original VM. Something happened to A VM, VM B you Savior.

  vStorage the device (here). It will use your local or DAS.

• With the help of two different devices for VDR to save the same virtual machines

  Hello

  I have VDR backup right now most of my virtual machines. I'm experimenting with some recovery scenarios disaster using VDR. I want to set up a new device, backup virtual machines themselves, but with a destination off. My question is, it would cause problems to have two different devices, backup the same virtual machines?

  I'm asking this is because I was looking at the notes of recent VMworld session on VDR and he says, regarding a troubleshooting scenario in which you must create a new device in addition to your current device, both devices back up the same virtual machines do not.

  If it is dangerous to do so because of the likelihood that two devices can save the same virtual machines at the same time, I could schedule the backup windows at different times to avoid this problem.

  Anyone have any ideas?

  I create a second local camera vDR and vDR distance and test it against a test VM. The vDR devices will have their own CBT files for each virtual computer, so they should be able to work together, but I would like to go through tests to see how they work well on the WAN. Make sure that you can transfer enough data to host daily data change.

• Sqlnet.ora instance configuration when instances share the same host

  Hello
  
  According have modernized some of our databases to 11.2 which was on different machines on the same host again we realized that one of them had node valid control setting with the list of nodes invited in sqlnet.ora.
  
  Is it possible that we keep this configuration for the instance and keep others outside this configuration?
  
  Kind regards
  Altan

  ak1980 wrote:
  Hello

  According have modernized some of our databases to 11.2 which was on different machines on the same host again we realized that one of them had node valid control setting with the list of nodes invited in sqlnet.ora.

  Is it possible that we keep this configuration for the instance and keep others outside this configuration?

  Kind regards
  Altan

  Laughing out loud

  And the use of valid_node and invited_node is fairly lame to start. I always wondered why implemented oracle implementation in their layer of sqlnet at all, being the right place to do the filtering on the router ip.

  So now you must be wondering why a single instance - and no others - used it in the first place. The solution to your dilemma will depend on the answer to this question. It could be that for a particular instance of filtering IP was valid. However, the decision to do so at the level of the layer of tns was wrong, and then pass that instance to a host with other bodies which have different requirements only aggravated the original error.

• VM on the same host and vSwitch talk internally?

  VM on the same host, using the same vSwitch automatically talk to each other internally on the host when they need pass data without using the NETWORK interface card or is there something specific that needs to be configured to do?

  Thank you

  With the virtual machines on the same vSwitch network traffic will proceed on via virtual network cards so the interaction network will not differ from the VM to communicate to a physical host.  Network traffic between virtual machines (assuming that they are on the same VLAN) will stay in the vSwitch and not go through the physical network on the host layer.  Thus the inter-VM traffic can exceed the speed of the NIC port in the vSwitch.

  vSphere includes VM Communication Interface (VMCI) that allows a host to communicate with the virtual machines without going through the network layer.  You can also enable VMCI for VM VM communication.

  http://pubs.VMware.com/VMCI-SDK/

  http://KB.VMware.com/kb/1010806

  Dave

  VMware communities user moderator

  Now available - vSphere Quick Start Guide

  You have a system or a PCI with VMDirectPath?  Submit your specifications to Officieux VMDirectPath HCL.

• VM to the communication of the VM on the same host

  I poured on the network and a few other discussions docs but I can't seem to find how VM to the communication of the virtual machine runs on the same host.

  If I have 2 VM on the same host in different subnets connected to the same vswitch can they speak directly? or have packets across the physical network and vice versa in? I don't know there must be a way for the s vm on the same host, vswitch speak directly, can someone please give me some advice on how it works and what are the limits.

  Thank you

  If it is plugged into the same vSwitch as what connect two servers on the same physical switch on different subnets, he won't have to work.  There must be some sort of Firewall / routing to have these two systems across different networks.

  -Kyle

  «"RParker wrote: I guess I was mistaken, everything CAN be virtualized"»

• To access the symbols parolees disable FPGA of host machine

  Hello

  Is there a way to programmatically access the conditional FPGA disable the host machine symbols? I would like to have a host VI who could know if, for example, the bitfile FPGA has been compiled with ENABLE_AO or not.

  solarsd wrote:

  Thanks for the tip. I was about to resort to something like that, but I thought that it would be uneconomic in terms of FPGA resources, I didn't know that it was minimal. Furthermore, you happen to know more in detail how something as in the pobrepablo1 example (btw, thanks for the illustration) would be completed in the material? What is the cost of a Panel control before FPGA? I was getting the impression that this is important - in one case, I could only include the VI my FPGA by changing some controls in the constants.

  You can get an idea of the use of the resources of statistical resources on the use of FPGAS screws. For example, I chose an FPGA random ones listed, and the table indicates that a Boolean or indicator control uses 3 flip-flops and 3 lookup tables, which is almost nothing. A constant uses resources from 0 (no logic). If your conditional constant disable can have more than 2 values, an 8-bit value is not much more expensive. If you have more than 256 possible values for a conditional disable, you're probably something wrong of course, I would not recommend using a string as in the example of pobrepablo, because it would be very expensive. That's as much detail as I can provide.

  solarsd wrote:

  I find such behavior of weird symbol be honest. I realize that these symbols are gone after compiling, but everything is managed in a LabView project, if the symbols must be available throughout. I think changing the symbol value will trigger a recompilation of bitfile FPGA anyway, so the 'source' and the binary files are synchronized. The FPGA "bitfile", as I see it, must have a code of host interacting with the driver card hardware FPGA, i.e. where the State of these symbols must be exposed to the user in my opinion. Just trying to understand the logic behind this.

  You can configure LabVIEW to open a bitfile on FPGA directly, without the VI used to compile. In this situation the VI and bitfile are not synchronized, and the bitfile could have been gathered in a different project with a completely different set of symbols parolees disable. The only way to guarantee that the bitfile is compiled with the right settings is an indicator on the front panel. You can take a look at the bitfile, it is just XML, and it doesn't even include the version of LabVIEW, used for the compilation. You can use a bitfile to a version with one crowd on the other, as long as the bitfile format has not changed. Disable conditional symbols are removed before the VI (in the intermediate form) is given in the Xilinx tools that actually create the bitfile. NEITHER could add more information, such as the value of the disable conditional, to the bitfile XML symbols, but there should be enough demand for them to do and they would then also need to add a mechanism to access this information. I could be wrong, but I don't know that enough people would find useful to a value of this change, when it is so easy to add an element of façade. Still, you could post on the Exchange of ideas FPGA and see if there is interest.

• How to get the cpu host machine virtual mhz by PowerCLI

  How to get the cpu host machine virtual mhz by PowerCLI

  Thank you

  

  The following command of PowerCLI will list the maximum cpu MHz for all of your virtual machines from the host:

  Get - VM | Select-Object - property Name,@{Name='MaxHostCpuMhz'; Expression = {$_.} NumCpu * $_. VMHost.CpuTotalMhz / $_. VMHost.NumCpu}}

• MSSQL server VM cluster should be in the same host or different hosts with RDM

  Could someone me on how to place the code SQL cluster s VM with RDMs in ESXi hosts for advice.

  What is the best practice to place the SQL VM s in ESXi hosts.

  Affinity or an anti-affinite...?

  Appreciated your valuable answers.

  Depends entirely on the use case.

  • 2 MS SQL nodes on the same host to see the availability of the software
  • 2 nodes on different hosts to see the availability of the equipment

  I'd say MS Clusters on the same host (at the time of HA and vSMP FT) are redundant VMware features and represent an increase in management fees. The MS cluster on hosts provide something in addition to what VMware vSphere alone can provide!