Performance of the virtual machine on ESXI 5

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  I had synchronization problems of intermittent time with my computers running on ESXi4 for quite a while now.  I thought that there were problems with my VM themselves and made some changes that appear to clear things for awhile.  The problems are back, and I'm starting to wonder if this is something being induced with ESXi itself.  My configuration is:

  ESXi 4.1.0

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  -FreeNAS

  VMWare tools are installed on all windows boxes.  FreeNAS is running without installed VMTools.  Domain controllers are set to use time NTP, servo out of an internet time server.  Client Windows have the default configuration and should be pulling the exact time of one of the two domain controllers.  FreeNAS is taking time to DCs.  Often when problems begin with authentication, it is because of the difference in clock being too great between servers, or between the Server / client.

  Are there recommended solutions for these issues?  I dug through the forum messages and the KBs and found a good bit of info but nothing that does not seem to solve these problems.

  I recommend you to configure a time outside of your virtual environment for you server ESXi hosts.

  Imagine that nothing is under tension, and you begin to start.

  Your domain controller will begin with your host ESXi (UTC) time until it can connect to the Internet to update time.

  At this time most VMs are probably on the wrong time, and it creates a lot of problems.

  After the updating of the DC then only will be hosting ESXi synch at the exact time. Quite a turn messed up

  If your ESXi have an external NTP server, they boot with the exact time and start all the virtual machines with the exact time.

  It may be useful

• Slow startup and performance of the virtual machine

  Hello

  We used with ESX 3.5 U3 and VC 2.5 Build 119801 for quite awhile. We organize two virtual computers W2k3 running Citrix XenApp 4.5 (last patchlevel). One of these two machines have a meaning very, very bad performance 100% cpu and memory. The other virtual machine works (ago implemented by cloning each other) fine.

  We migrated virtual machine causing the problem to another host ahead has a bottleneck of the esx host. But if there is only the one virtual machine on an esx host, the problem remains. When starting the virtual machine, the W2k3 bootscreens hung for at least eight minutes. We followed the vmware.log in the datadir of the virtual machine. The vmware.log says:

  10:05:27.209 Mar 27: vcpu-0 | SVGA: Registration MemSpace 0xf8000000 (0xf8000000) and 0xf4000000 (0xf4000000)

  We have no memory of overcommitting, no action, no DRS, without limits and without reserves. I just deleted a snapshot as I thought writing the delta file could slow the operation.

  All other virtual machines seemed fine.

  Any of you have seen this problem before?

  Thanks in advance,

  Daniel Volkerts

  OK, then once the machine starts, run the real-time performance monitor, add counters for cpu, mem, disc and see if it goes pic... also Task Manager control which process takes more cpu or mem...

• Poor performance of the virtual machine

  I used VMware Server for a few years and thought I would give an ESXi, but I have problems.

  Here's the story backwards.

  One of my friends has a server which is used as its SMB company's intranet.

  This server is on its last breath and ready to die.

  He has no access to code custom or even how to reinstall this application to a new server.

  So I thought that ESXi would be a good fit.

  I had an older server (2.7 ghz Xeon dual processor HyperThreading 3 GB of RAM) laying around.

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  I set up ESXi and then used VMware Converter to virtualize the system.

  Everything went well and the conversion worked as expected.

  The application worked.

  Now a serveral people hit the virtual machine, it works like a dog.

  The old dual 500 mhz Server works best.  Although on the surface, it is 5 x more speed and 3 x more RAM.

  Ping on the virtual computer will range from 1ms to 1000 + ms not very regularly.

  However, the ip address of managing pings under 1ms and is on the same physical adapter.

  Any suggestions for what to look for?

  Am I missing something?

  I thought my configuration to the top was pretty basic.

  How many virtual processors did give the virtual machine? If I would try a simple vCPU - double the amount of memory is affected and how much the server have?

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful

• get data on the performance of the virtual machine

  Hello community,

  I am trying to obtain performance data from a virtual machine using the following code:

  //create start & stop time 
  var end = new Date(); // now
  var start = new Date();
  start.setTime(end.getTime() - 3600000); // 1h before end
  //create a querySpec for one entity
  var querySpec = new Array();
  querySpec.push(new VcPerfQuerySpec());
  querySpec[0].entity = VM.reference; //set entity of workflow VM
  querySpec[0].startTime = start;
  querySpec[0].endTime = end;
  //creteate PerfMetricID for one metric
  var PM = new VcPerfMetricId();
  PM.counterId = 2;
  PM.instance = "";
  var arrPM = new Array();
  arrPM.push(PM);
  querySpec[0].metricId = arrPM; //assign PerfMetric to querySpec
  querySpec[0].intervalId = 20;
  querySpec[0].format = "csv";
  
  var CSV = VM.sdkConnection.perfManager.queryPerf(querySpec);  // query PerformanceManager
  System.log (CSV);// show if type is OK
  //show properties
  System.log (CSV.entity);
  System.log (CSV.value);
  System.log (CSV.sampleInfoCSV);
  System.log (CSV.dynamicProperty);
  

  The workflow is valid and functional. But there is no data. Here's the log produced by the workflow:

  [2010-11-12 12:12:53.742] [I] DynamicWrapper (Instance) : [VcPerfEntityMetricCSV]-[http://class com.vmware.vim.vi4.PerfEntityMetricCSV|http://class com.vmware.vim.vi4.PerfEntityMetricCSV] -- VALUE : com.vmware.vim.vi4.PerfEntityMetricCSV@beb35d25
  [2010-11-12 12:12:53.742] [I] undefined
  [2010-11-12 12:12:53.742] [I] undefined
  [2010-11-12 12:12:53.742] [I] undefined
  [2010-11-12 12:12:53.742] [I] undefined
  

  I also tried .format querySpec [0] = 'normal '; -same result.

  Where is my fault? I'm on the right track?

  Pls support me in obtaining data on performance, Thx.

  -

  ---

  Kind regards, Andreas Diemer

  visit http://www.vcoteam.info & http://mighty-virtualization.blogspot.com/

  SERVUS Andreas!

  I think I got to the next step:

  perfManager.queryPerf (...) returns a table, not the CSV values itself. Therefore, pop() data in the result table.

  A change in your code that returns a large amount of data in my lab:

  var CSVArr = VM.sdkConnection.perfManager.queryPerf (querySpec);  query PerformanceManager

  System.log (CSVArr) ;// show if the type is OK

  view properties

  var CSV = CSVArr.pop ();

  System.log (CSV.entity);

  System.log (CSV.value);

  System.log (CSV.sampleInfoCSV);

  System.log (CSV.dynamicProperty);

  But I do not know why the System.log (CSVArr) does not show the array as a type... (maybe because there is only one item!)

  Edit: found the answer:

  ... - VALUE: com.vmware.vim.vi4.PerfEntityMetricCSV@229650a8 versus

  ..... VALUE: com.vmware.vim.vi4.PerfMetricSeriesCSV@5d7f26

  "Once again learned!"

  BTW: I found the idea with the table on the slide 59 of this presentation:

  http://communities.VMware.com/servlet/JiveServlet/download/1371233-29453/vSphereAPI_PerfMonitoring.PDF

  Hope this helps

  See you soon,.

  Joerg

  PS: How can you add not formatted 'verbatim' sourcecode-style here in the forums?

• Hosts with active Hyperthreading - best performance of the virtual machine?

  After having been involved in a recent thread on Hyperthreading activation on your hosts: -.

  http://communities.VMware.com/message/1567821

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  If anyone has any other given that a marked improvement?

  The specification of hosts within our farm are essentially the same, and new hosts with HT could actually could be called lower spec than our other guests so its interesting, it makes such a difference.

  In any case, interesting to see what other people have found.

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• Wrong message 'VMware Tools can be updated' for the virtual machine within ESXi 4.1

  These VMware tools in my guest operating system keep on the list "VMware Tools can be updated" and the yellow exclamation point.

  Host operating system is ESXi 4.1.0 build 348481

  VMware Tools version is 8.4.8 build 491717

  It is not on the files with the extension.001 as described in the following article

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 2001382

  I checked and there is no file with this extension.

  I think that VMware tools is unable to read or to compare the correct numbers.  Or is there another reason?

  Reply to my own post:

  The answer, in fact the procedure, is inside this article:

  https://communities.VMware.com/docs/doc-31365

  For some reason VMware Tools is not installed correctly (for example files from previous versions are left inside the hard disk).  So I have to do a manual cleaning before you reinstall the tools.

• Cannot depend on the virtual machine after reboot

  Hello world

  Thanks for reading this post.

  My version VM ESXI4.1.0, 348481.

  Here's my problem:

  One day my VM was hanged, and I tried to restart.

  After the reboot, it can be turn on. And I tried to remove the inventory and to recreate the virtual machine.

  However, I can't find the. VMX file in the data store.

  So I tried to create a new virtual machine and put the files in this folder, but it can also work.

  Please see the capture screen, (http://clip2net.com/s/2aNUG)

  Could someone give me guidance and advice how to solve?

  Thank you very much.

  According to the latest vmware.log file, you have tried to access one of the files base/flat with a wrong header file (40 GB)! This hopefully not bad data on the virtual disk. In any case, I've recreated the missing files (see attachment), so you should be able to redo the work of the virtual machine. Because the vmware.log file did not help, I've recreated the instant chain according to the timestamps of the delta file.

  Please follow it below mentioned steps exactly to avoid problems in case something does not work as expacted:

  • Make sure the flat files as well as files 2 6 delta are still in place (not renamed,...)
  • remove the virtual machine from the inventory of the host (right-click-> "Remove from inventory") ESXi
  • delete the temporary/second .vmx unless there is a special need for it
  • Download the files from the .zip file in the folder of the virtual machine on the data store
  • Click right newly downloaded virtual machine's .vmx file and choose "add to the inventory.
  • create a new snapshot (this is important!)
  • Turn on the virtual machine

  If something is not or you have questions, please send back before moving on to the other steps.

  If everything works as expected you should consider the 'Delete All' snapshots in snapshot Manager. This will release not only almost 200 GB of disk space, but can also improve the performance of the virtual machine. Because the size of the snapshot, remove snapshots may take some time, probably in hours!)

  André

• Unable to connect to the virtual machine via telnet

  Hi all

  The VM on Vcenter everything is perfect with the network connection. I can't do a ping of the virtual machine remotely but I can not connect via telnet.

  For the same reason? And even more, I have disabled the fiewalls of the virtual machine (Windows 2008 R2).

  The error that says: could not open connection to the host, on port 23: Connect failed

  Can you please let me know how to solve this problem?

  Since there is nothing blocking the traffic of the virtual machine in ESXi, you can begin troubleshooting in the guest OS. For example is running telnet server and configured to accept connections?

  André

• Connect physical hard disks to the virtual machine (and leave the data intact)

  Hello

  I'm looking to virtualize a SOHO headless server, that I use mainly for secure file storage.

  Currently, the system runs Linux installed on a small disc and has two drives 1.5 TB, used exclusively for data, in a cluster of ZFS mirroring. (I use the ZFS-fuse Linux-based application).

  I want virtualization for two reasons. One is to make administration easier and safer - avoid having to connect a keyboard and the physical monitor to the box from time to time. The other is that the machine is a bit more powerful to handle the load, and I'm hoping to make it work on other, more challenging tasks.

  Now, there is a catch. These discs are as highly important. I mean the data on them. What I need is to convert the current Linux system to a virtual machine, or re - install Linux on a virtual machine (don't like that), then connect the physical disks to the virtual machine as if they were actually connected.

  I certainly don't want to vmware touches those disks somehow.

  I've read the documentation, but I'm a noob when it comes to server virtualization and system engineering and don't quite understand if this is possible or not. These discs are not a SAN, they are physically connected to the server, I want to install vSphere on. (Of course, I'll log out when I run the setup of vSphere. But I need plug them again later, and they need to be sure that vmware will leave them alone and pass them to the virtual machine transparent.)

  Sigmoid wrote:

  Oh yes, the cluster mirrored ZFS. It is essentially a software RAID type thingie.

  http://en.Wikipedia.org/wiki/ZFS

  A material, or the point of view of virtualization, it appears two hard drives with a single huge partition on each that is not transparent to anyone, except the implementation of ZFS.

  OK, means that you can break the RAID, connect the drives to different host and configure RAID once again, right?

  Let's do it this way

  1. We will need a disc player more for VM, cause on flash, we install ESXi
  2. I will share ZFS :-), all you need to do with that before you install ESXi
  3. make the BACKUP!
  4. Disconnect the data host drives
  5. install ESXi 4.1 U1 free version on flash
  6. Download the site VMware vSphere client
  7. Connect the VM disk to ESXi
  8. customer help create the virtual machine and install the OS on it
  9. stop the virtual machine and esxi
  10. connect DATA drives to the ESXi host
  11. begin to ESXi
  12. See how to add RDM on youtube, after client use, change first hardware VM--> add a new hard disk--> choose Raw Device Mapping--> (physical or virtual) mode--> store it with folder VM - FACT
  13. Start the virtual machine, now your VM should see both drives, with good data course :-)

  I have just made this procedure (add ROW with data in Linux VM) on ubuntu VM, works well

  See you soon
  Artur
  

  Please, do not forget the points of call of the "useful" or "correct" answers

• Guest member - % in the tab of the virtual machine is meaningless?

  HI - so I haven't read hot air balloon, shared, private and everthing on the vmware RAM allocation.

  However I still do not get the 'mem % comments' column in the tab of the virtual machine for a given cluster.

  For example, I have a machine that shows:

  -in windows Task Manager, total physical: 4 GB, available: 1 GB. Incur costs: 7 GB

  -in the "allocation of resources" tab vmware: private: 3.9 GB, ball 0, 5 MB compress, shared 95 MB. Consumption: 4 GB.

  BUT in the tab of the virtual machine to the host, I see: host mem 4 GB (ok) and guest mem %: 18%

  IT makes no sense as a guest mem % is supposed to represent the percent of GUEST memory usage - which in this case should be 75% or 100% depending on how you look at it, but certainly not 18 percent.

  As I understood the mem % calculated using something comments are called "active memory". Active memory is memory that has been actively used "currently" (I don't know what "currently" means in time quantified tho). What you see inside windows, in the Task Manager, is allocated in memory from the point of view of windows, but windows is seen only (depending on the setting of mem comments) using 18% of 4 GB or 720 MB. A nice information to have if you plan to make a reservation for this virtual machine and that you really want to know what to set the reserve at since the rest of the memory could be balooned (toggled) without any noticeable decrease in performance of the virtual machine.

  / R

• Cannot start the physical machine converted to a virtual machine under ESXi 4.0

  Hi all

  I have 2 has with the material below

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  A performer with ESXi 4.0 other runs with Windows 2003.

  I tried to convert physical machine with "Vmware Vcenter converter Stand alone" 4.0.1 build 161434

  I used the tool on the source machine and by another machine on the network.

  The two process converts the physical machine to a virtual machine successfully without any errors.

  After conversion, the virtual machine cannot start, and shows only a small slider that is not flashing too.

  

  The physical machine have a single partition of 160 GB

  The space currently used on the physical machine is 26 GB.

  I reduced the size of the HARD drive to virtual computer with fix / light available in 40 GB.

  point to make here is that the ESX have only 160 GB HDD, so he will not be able to copy all 160 GB because of which I am reducing the 40 GB HARD drive

  I converted a few other physical machines with 40 GB HARD drive and they work well after the conversion.

  Any sugessions would be greatly appreciated.

  Thanks in advance

  Hi Sunil,

  Let me know the drive selected in the custom option controller.

  Thank you

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  Please provide steps

  In simple terms, you cannot connect ESXi to SQL. Connect a vCenter SQL (Windows only).

  If you want to save all the data that is contained in your virtual machines, I suggest a backup solution.

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  Hi all

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  later when the failed host returns upward machines either go to motor off the coast of the State, or they show that under tension

  While the host is down or not responding do not I am able to ping the host ESXi (5.5) and able to ping the default gateway and the DNS servers of the host itself

  Yes AF, the answer to all these questions is Yes, it is a HA and DRS cluster active, I tried restarting mgmt service, we use a shared storage (storage iSCSI HP 3PAR and left hand)