VM with ESX hosts time synchronization

Similar Questions

• vCenter won't work with ESX host

  When I want to add the host ESX to vCenter server I get an error: a general error occurred: internal error: vmodl.faulf.HostCommunication.

  I started making these points: http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1003409

  I have disvovered I need to reinstal Service Agent VirtualCenter. I did what is written here: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1003714

  But after daing this command:

  service

  Mgmt-vmware stop & & service vmware-vpxa stop & & maintenance

  VMware-vmkauthd stop & & service xinetd restart & & RPM

  -qa | grep-i vpxa | AWK '{print $1} ' | XARGS tr/min-ef $1 & &

  userdel vpxuser & & rpm - qa | grep-i aam | AWK '{print $1} ' |

  XARGS tr/min-ef $1 & & mgmt-vmware service start & & maintenance

  VMware-vmkauthd beginning

  in reconnecting I still have a problem:

  RPM v VMware-vpxa

  Unsatisfied with the dependencies for VMware-vpxa - 4.0.0 - 208111.i386: VMware-esx-pass

  ART.5. T c /etc/opt/vmware/vpxa/vpxa.cfg

  What should I do?

  This KB is to reinstall ESX host agents.

  first of all, you should check if compatible your host with the version of vcenter.

  It check the archive attached.

  You can also see this maybe useful Ko http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1012154

  If you have found this information useful, please consider awarding points to 'Correct' or 'Useful'*.

• The requested operation is not implemented by the server when you try to access the VI Client with ESX hosts

  Hello

  We have problems with the VirtualCenter (which someone else works).  I need to access some of the virtual machines and tried to connect through the VI client to all ESX hosts.  I get this error after I give him password, username, and hostname:

  The requested operation is not implemented by the server.

  I'm sure I got this race last year.

  A reflection as to why it does not work?

  Thank you!

  Hello.

  How you launch the client?  Is it a shortcut with possibly a few settings in there?  If so, try running it without parameters.

  Good luck!

• What is the STIG RSS script and how implement us it with ESX hosts?

  I have heard of STIG script but do not know what he done to the ESX host and what is it and is it necessary? Any ideas would be excellence.

  It is one of the specially designed UNIX script for the Department of defense uses to run against your ESX hosts to any of the configurations and security issues and will generate a report of vulnerabilities.  You can download them directly from the site Web of STIG and run the script to see how vulnerable are your hosts.  Here's a long discussion on this topic and the updated release of the script as it goes.

  http://communities.VMware.com//thread/145435?TSTART=15

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

  Kind regards

  Stefan Nguyen

  iGeek Systems Inc.

  VMware, Citrix, Microsoft Consultant

• Time synchronization VM

  I want to know the answer of my this request if I change the time on the virtual machine and time host is different and even there is no configured between the vm and the host time synchronization then I restart the virtual machine and then my vm and time host aligns and why behaves like that and what happens if I want to keep this different time in my virtual machine So how can I do this?

  Check out http://kb.vmware.com/kb/1189

• Time synchronization with host ESX to Windows start even if disabled in VMware Tools?

  Hello

  just got in trouble with a freshly installed Windows XP SP3 VM do not apply Active Directory group policies. After some research, I discovered that this happened only with VMware Tools installed.

  With VMware Tools installed, Windows events 1030 and 1097 were generated at each start (the events say that group policy processing has been abandoned and that there is a time difference between the server and the client) and group policies have been applied.

  Without VMware tools, everything was fine.

  After some additional debugging I discovered that the ESXi (4.1) server was not configured with a valid NTP server and the host time was 10 minutes behind. However, as time synchronization between the guest OS and the ESX host has been disabled in VMware tools, I couldn't imagine it was really the cause of the problem. But strangely it turned out that this was indeed the case! At every Windows startup time has been at the time of the host ESX - but only for a few seconds. This can be seen in the attached photo: initially, there are guest operating system time, and then you see the jump both ESX and then jump back to the guest operating system.

  Why does this happen? Hard, I could solve the problem in the first place by configuring the NTP server on the host, I would like to know why VMware tools change the time of the guest OS, even if it is disabled!

  Thank you

  When he put the VM must draw from somewhere and since the AI network time form more that probably not started it must draw from the host, but once the networking appears he died in the NTP source - that's why it is recommended to configure your ESXi (and ESX) to synchronize the time with NTP source.

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

• Time to causes of consolidation to ESX host sync although vmtools are on no synchronization with the host ESX snapshot.

  Is there anything else I need to do to get the VM to stop his time with the synchronization host.

  Have a look here: VMware KB: disabling time synchronization

• How to report the current time on the ESX host in to a csv file with the following

  Hello guys

  I have the script next where I make the required details except the current time on the ESX host. Anyone can guide me please.

  		{foreach ($esx to $vmhosts)
  			$hostVC = $vcenter
  			$hostCluster = $esx. Parent.Name
  			$hostHost = $esx. Name
  			$ntp = $esx | Get-VMHostNtpServer
  			$hostNTP = "$ntp".

  			}

  I want to integrate the following for loop of the above for loop and ge the output in a single table.

  foreach ($esxcli in get-vmhost | get-esxcli) {"" |} {Select @{n = "Time"; e = {$esxcli.system.time.get ()}}, @{n = "hostname"; e = {$esxcli.system.hostname.get (.hostname)}}}

  Add-Content - Path '$hostVC, $hostCluster, $hostHost, $hostNTP, $hostTime' $hostInvFile - $ hostTime is where I want to get my host right now.

  I'm vcenter, esx name, name of the cluster, host of the ntp server address, but I need the host thus present.

  Thanks in advance.

  Thank you

  vKar

  Try changing the line where the script retrieves the VMHost to this

  $vmhosts = get-VMHost-State connected. Name sort

  This way the script will be only to ESXi nodes that are "connected".

  Pick up time for those defective does not much sense in all cases

• Check the configuration of time synchronization in ESX 4.1 for Windows domain

  Hello

  Sorry if this topic will cover many, but browsing the forums I found some conflicting info and thought that it easier to ask you if I had it correct.

  I'm ready to virtualize our Active Directory environment and put all our virtual machines RODCs.  We have an environment with 8 ESX hosts and vCenter 4.1.  Most VMs are Windows member servers, but also several RHEL servers and a few non-domaine joined Windows servers.  We have also two domain controllers that are already virtual machines.  I'm down to the last physical domain controller which is our role PDC FSMO server so the Master Timekeeper.

  That's how I was going to change our Setup for the services of time with all being virtual domain controllers.

  1. the virtual FSMO PDC of our clocks of field it is time via w32tm to an external time such as us.pool.ntp.org source. That's the only DC with an external time source.
  2. all the domain joined machines Windows, whether virtual or physical (servers and clients OS) get their time via the domain controllers.  PDC-> all the other DCs-> clients and member servers.  On VMS, we do not use VMTools do a time synchronization. Throughout the normal Windows AD process.
  3. all ESX hosts serve time source external PDC, described above.
  4. all the non-domaine attached (Windows or Linux) machines that are virtual machines get their time synchronization via the VMTools Sync feature.
  Have I not my correct thought and not its ok to ensure synchronization of time between the field in a virtualized ad environment?
  Thanks in advance,
  HR

  That sounds about right, and I've implemented almost identical to this designs. The key is, as you say, do not sync using the time host via VMware Tools, in particular on the role of the PDCe.

  I also usually use this method to ensure that the PDC (role 5) is the only way to an external time source:

  http://blogs.technet.com/b/askds/archive/2008/11/13/configuring-an-authoritative-time-server-with-group-policy-using-WMI-filtering.aspx

• Time synchronization problems ESX 3.5 U3

  Hello

  I have problems to our guests three 3.5 U3 to synchronize the time with the firewall. The ESX hosts are invariably run 4 minutes faster then the firewall. I checked the time synchronization on our NetApp and it works properly in line with the firewall. There is also a simple setting in the NetApp for maximum tilt. I can't find out why or how to fix this problem in hosts.

  Someone at - he seen this before?

  Thank you

  G

  I noticed sometimes you need to (manually) sync successful for ntpd works correctly.  Try this:

  service ntpd stop

  ntpdate < ip.of.ntp.peer >

  service ntpd start

  This ntpdate command can be synchronized manually with your counterpart/Server ntp clock.

• Question ESXi 5.5 with turn a virtual computer: "an error was received from the ESX host turning on VM" '22 (Invalid argument)"'DiskEarly on a power Module failed.'

  Here's what happens when you try to turn it on one of my virtual machines (see also accessories):

  Error stack:

  An error was received from the ESX host turning on VM vzilla-ws2012r2e.

  Unable to start the virtual machine.

  Cannot open disk ' / vmfs/volumes/51286ca4-ef967828-664d-001b2129ad71/vzilla-ws2012r2e/vzilla-ws2012r2e_3.vmdk ' or one of the snapshot disks it depends on.

  22 (invalid argument)

  Power DiskEarly module has failed.

  Cannot open disk ' / vmfs/volumes/51286ca4-ef967828-664d-001b2129ad71/vzilla-ws2012r2e/vzilla-ws2012r2e_4.vmdk ' or one of the snapshot disks it depends on.

  22 (invalid argument)

  This circumstance may be linked to a sata cable issue, with the possibility of temporary loss of connectivity, which could result in data loss/corruption, I realize.  It is a laboratory box.  Especially say that the 2 VMDK he complains (trying to light) is both on the grounds of a single physical disk. Data, read and written to the speaker, since the problem are very good (which indicates the wiring problem was resolved, and the VMFS5 file system seems to be in good health).

  No photos.  No related clones.  Just a 2012 Windows Server based VM, with several drive letters in, with those underlying files VMDK residing on different stores of data VMFS5.  Implemented end (these drives aren't really so huge), but far from running out of physical space for the data either. Everything is working great for months, until today, trying to it turns on again.

  You are looking for:

  "Failure error disk beginning module lit" results in this article:

  error disk on start module failed

  which indicates the .lck files may be present.  It does not exist.

  Then upwards, of a variety of other items:

  Re: Unable to start the virtual machine: invalid argument on *-flat.vmdk

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1004232

  https://communities.VMware.com/message/search.jspa?peopleEnabled=true & userid = & ContainerType = & Container = & q = module + DiskEar...

  error disk on start module failed

  but alas, none of them seem to relate directly, or exactly.  My vmware.log file is attached below, as well as some screenshots of to show the structure of the unity of this virtual machine.  Hoping that this post proves fruitful, if anyone has had a similar situation.  The data at stake here are (mostly) redundant, but I would rather understand my way of it, in the case where it happens to me again, or can help others.  Many preferred rather than give up, reformat the VMFS and start again.

  Thank you!

  Good news, the best result I could hope. No data is lost. No corruption of the VMFS or NTFS don't drive in the virtual machine. Nice!  Saved me a few terabytes of data restoration and learned a little more on file system of troubleshooting along the way.

  It took a technician of VMware Service excellent, attentive, methodical remote 2 hours in a WebEx previously to resolve problems with these 2 files vmdk manually, because he found that there is a lock on them. I opened a request of Service (SR) # with VMware by following the instructions here:

  VMware KB: Cannot access certain files on a VMFS datastore

  To resolve this problem, apply for support from VMware Support and note this ID (1012036) Knowledge Base article in the description of the problem. For more information on the filing of a request for support, see How to submit a support request.

  I'll cover this saga and the exact process for collecting and downloading of newspapers, through to my TinkerTry.com, including the ride video.  I even captured much of the technical work that has been done. That said, it is true that little of the magic that was made to resurrect the metadata will remain a mystery, given that this piece is VMware.

  I'm ok with a bit of black box, considering how I'm happy that I got all my data, and time savings that the quick recovery represented.

  By clicking on the button "answer".

• Time synchronization error ESX and VMs despite the existence of the NTP server

  Last time the ESX Server system was wrong, and some virtual machines (windows and linux) took the time ESX as their time.

  The weird part is that these virtual machines have been synchronized with a physical server, and the time synchronization tool VMware has been disabled!

  No idea why this happens?

  Thanks in advance

  ... and the option synchronize tools vmware ESX server has been disabled

  I understand that. However, the KB article, there is a difference between 'disabled' and 'completely disabled.

  André

• Time synchronization failure ESXi with the role of PDC windows 2008

  Hello

  I have configured my ESXi hosts to synchronize their time with my (physical) 2008 windows domain controller.

  This domain controller holding the role of PDC for the domain.

  Synchronize the time on the host computer is configured on the IP, but it does not work. The host is not synchronize time.

  When a virtual machine is started, it syncs everything first time with the crowd and after a few minutes, he re - synchronizes with the domain controller.

  How can I get the host to synchronize with my DC?

  ThX,

  Harry

  Hi Harry,.

  You may need to activate the NTP server on your first PDC (POWER off by default) emulator feature. You can take a look at the following blog to find how do.

  Never use NTP in a virtual machine if it is part of a domain. Active Directory has its own mechanism for time management.

  It will be useful.

  Concerning

  Franck

• help - vm to 100% with Betclic resources cpu, but the ESX host to 15% cpu

  Hi all

  5 * HP BL460c Blade each with two Quad Core Xeon E5450 and and 8 GB of RAM.

  ESX 3.5

  VirtualCenter 2.5.0

  DRM and active HA.

  I need assistance with resource pools. Currently I have them all together for:

  • expandable

  • unlimited

  for the CPU and memory. I tried without reserve and with reservations, and it is indifferent to the result.

  I'm running a server SQL2008 (2 * vCPU, 3.5 GB of RAM) which is pretty hard. and from time to time the cpu usage spikes to 100% (6 GHz) and saturate at this time here. When I go to the graphs of the ESX host, I see up to 3 physical processes responsible... and all the others are dormant...

  I'm working on why he no longer not affected resources of the ESX host. I thought that because of the resource sharing (unlimited), he could catch resource from the pool of resources of the parent (unlimited). And our Installer is very very little used - so much processing power/mem available spare parts.

  I have also some really stupid questions:

  • with SMP, 1 vCPU means only 1 pCPU host is used?
    I never thought that this true, but in this example, it seems that only 2 pCPUs on the host are used... maybe 3,.., it is difficult to tell from the graph

  • a virtual machine can use more resources from a host at the same time?

  with SMP, 1 vCPU means only 1 pCPU host is used?

  I never thought that this true, but in this example, it seems that only 2 pCPUs on the host are used... maybe 3,.., it is difficult to tell from the graph

  Yes, assign you a resource equivalent to a virtual machine to the host.  Therefore, if you assign 1 vCPU which is equivalent to a unique Jepp on the host computer in the slot.

  a virtual machine can use more resources from a host at the same time?

  No. a resource pool is on a cluster, but VM inside this POOL can only use a single host resources.  The case is from ESX can use DRS to load balancing force of the VM, the pool determines the overall consumption and that you assign VM accordingly.  But ESX is not yet there to physical resource take other hosts.  What ever host is on, it is that the only place these resources can be achieved.

  What process the SQL 2008 taking up the CPU process?  I think it's SQL Server, in which case it is not that you can do.  One of the reasons that I discourage using VM for SQL, SQL works not virtualized.

• BlackBerry Smartphones "BOLD" time synchronization with the Desktop Help software!

  I use the 5.0.0.11 desktop softwar and my system´s clock is set to time zone Brasilia (-3).

  Whenever I sync my "BOLD" (4.6.0.266) with my my time Blackberry Desktop software and the calendar synchronizes all zone Eniwetok (-12). I use Windows vista Home premium SP 2... Can someone help me?

  On the BlackBerry if you go into your date/time options, it's on you're correct time zone? If you go to the Office Manager. Synchronize, you can uncheck the option "update device date and time?