5.5 ESXi hosts disconnection of the vCenter 5.5.0b

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• ESXi host running 6 VCSA disconnected from the vCenter

  Hi guys,.

  I have a weird problem with my vCenter build 6. Single cluster of ESXi hosts. Running VCSA 6.0 and 6.0 ESXI. Making a storage of the vCenter vMotion initially got stuck at 77% and the ESXi host running the disconnected from vCenter vCenter. But I can connect directly to the ESXi host with vsphere client and see the vCenter VM works perfectly well. If I try to manually connect host ESXi and vCenter, I get the error "Failed to contact the host specified") both are in the same subnet and VLAN. I can migrate to other virtual machines without problem. I even restarted the host and yet I am not able to connect to vCenter. The host connects to vCenter if I reboot vCenter, but after a few minutes, disconnects again (even if no task does run on this topic.) I have no HA or DRS enabled at this point that I build this new environment and only presented a single LUN as a store of test data to the cluster.

  Any ideas?

  OK, I think I fixed that or have at least a work around. So the underlying question was hiding ID mode/CPU EVC. I'm under the cluster to a level of EVC to reduce until I have migrate workloads from old environment and I think that this created a problem for the unit vCenter. To resolve this problem, I turned off the unit, directly connected to the ESXi host that had the camera running, edited the virtual machine and reset the masking of CPUID. Also, I've hidden the flag NX/XD of the guest. It's temporary (I hope) as once I increase the EVC to the Haswell, I will expose the NX/XD comments and test. For the moment, it is of the workaround I did. It may be of some use to someone.

• 5.1 ESXI host disconnects the vcenter, when reconnected SSL fingerprint has changed.

  I'm having a strange problem with only 1 of the 5 hosts connected to a cluster inside of vcenter. A host disconnects randomly vcenter.

  I right click on the host and select Connect. I get the default value to the warning that 'reconnect a host will replace any change in management of resources that have been made directly on the host... ". ». I select Yes.

  Then, I get an error

  The authenticity of the host SSL certificate is not verified. This option is to close.

  I am taken to the add hosts Wizard. where can I enter the password IP and root to add the host to the cluster.

  Now, I get a security alert:

  "Impossible to verify the authenticity of the host: the SHA1 of the certificate fingerprint is:

  The fingerprint shown is different every time I add this host.

  I worked through vmware following popular KB with no resolution.

  VMware KB: Diagnose an ESXi/ESX host that is disconnected or not responding do not in vCenter Server

  VMware KB: ESXi/ESX host disconnects from the server vCenter Server after you add or connect to the inventor

  VMware KB: Troubleshooting network and TCP/UDP port on ESX/ESXi connectivity problems y

  We have tried, replacing the network card management network is on, replace the cables, the port of the switch, that this machine is connected, completely reinstall esxi switch. Nothing has solved this problem.

  Someone at - it other things to try?

  It turns out that the problem is that our agile took place of the intellectual property that it wasn't supposed to and it's a double that esxi host IP. Very strange behavior. But it's the solution.

• Upgrading to ESX 3.5 host to ESXi 4.1 where the VCenter is installed on the guest system

  Hello

  I try to find measures to upgrade to ESX 3.5 host to ESXi 4.1 where the vCenter Server 4.1 is installed on the system of comments on this host.

  Any suggestions are welcome.

  Thank you

  Georgi

  Should I move the virtual machines from the first RAID at one of the others? Whipe then come out the scores and perform ESXi 4.1 installation?

  Yes, it's a way to do this.

  Unfortunately, the ESXi 4.1 installation wipe the disk to complete installation (or logical volume) as you have experienced. Assuming that "logical partitions VMFS" you mentioned are logical volumes actually created in the RAID configuration (presented as individual of the operating system disks), you can migrate the virtual machine that is currently stored on data store of the installation disk to a data store on one of the other logical disks and then install ESXi.

  André

• ESX keep disconnecting from the vCenter 4

  Hi guys,.

  I have the ESX host couple who kept disconnecting from the vCenter 4 after I added them in there for 1 minute or so.  The vCenter (CORPIT network) and the host ESX (Customer1 network) are separated by two firewalls and NAT IP addresses.  Here are the current firewall rules.  What Miss me?

  CORPIT to CLIENT1

  VC for ESX - open ports (TCP 22, 443, 902, 903) & (UDP, 902, 903)

  Customer1 to CORPIT

  ESX to VC - open ports (TCP 80, 902, 903, 9000-9100, 27000, 27010) & (UDP, 902, 903)

  Thank you

  VMUser910

  Have you had a glance at this VMware kb? http://KB.VMware.com/kb/1010652

• ESXi hosts are disconnected from the vCenter (5.5)

  Hi all

  We have a little problem with our vCenter.

  We have two hosts that are connected to the vCenter, unfortunately, they are listed as disconnected.

  It seems that the problem are the SSL certificates on ESXi hosts that are no longer valid.

  If I replace the old certificates with new ones, that I have to restart the ESXi host, am I right?

  If so, that's the problem.

  We do not use any what automatic vMotion and as long as the hosts are not connected to the vCenter I can't manually, move right?

  Is it possible to connect hosts to vCenter without SSL?

  Sorry for my bad English, I'm not a native speaker.

  See you soon,.

  Johannes

  You need to replace the ESXi host SSL certificates.

  See the Docs for the replacement of ESXi Cert below.

  ttp://www.BlueBox-Web.com/2013/04/18/replace-ESXi-certificate/

  Documentation Centre of vSphere 5.5

  I had regenerate the ESXi 5.5 SSL certificates, which I did without any stop to virtual machines.

  Certificate replacement process can change based on the esxi version.

  According to the Doc, vSphere 6.0 Documentation Centre ESXi6 host must be rebooted to replace certificates.

  Anyway, in current state disconnected, you can try to regenerate the self signed SSL certs, restart management agents and try to reconnect host in vCenter.

  Thank you

  Hentzien

• Disconnected ESXi host cannot reconnect to VCenter

  ESXi 4.0.0 Releasebuild-261974

  VCenter 4.0.0 build 162856

  VSphere 4.0.0 build 162856

  I have a host on the 16 who became disconnected from VCenter recently. I spent some time online means to join new host in VCenter, but each has failed so far. I'm not avoiding perform a reboot of the host due to production VMS are residing thereon. Also, I can't access the Web page for the host, which works very well for the other guests, we have running: https://

  I am able to ping both the IP address and the name of FQDN of the host successfully.

  I did the following things in the hope of resolving, who all have failed:

  1 restart the Management Agents on ESXi host from the windows of the customization of the system.

  2. test the management successfully and rebooted network management network

  3A tried to reconnect to the host via VSphere

  4 registered and the Mode of Support Tech executed the following command: /sbin/services.sh restart when I run this command, I notice that the vmware-aam service does not start.

  Error messages:

  1. (in an attempt restore the link) cannot communicate with the specified host. The host may not be available on the network, may have a network configuration problem, or that the management on this host services may not respond.

  2 (of the newspaper of the Management Agent) panic HttpNfcSvc another process is listning IDE oucederomsurlesecondport 12001; Please ensure that another instantiation of pass run; Cannot initialize the service of httpnfc.

  3. (journal of the VirtualCenter Agent) 0x1499bb90 error 'App' could not discover the ofr is authenticating with host agent version. ; could not resolve version ofr is authenticating with host agent. ; Temporary creation connect spec: localhost:443.

  4. (of the newspaper of the VirtualCenter Agent) 0x1499bb90 error 'App' SSLStreamImp::BIORead (0x2e408bb0) has expired; SSL connection failed with error BIO

  [5 (journal of the VirtualCenter Agent) HttpUtil::ExecuteRequest] error in sending request - SSL Exception: transfer the SSL expired local: 127.0.01:63355 peer: 127.0.0.1:443

  Any suggestions would be greatly appreciated! Let me know if you need to work as well with more information.

  Thank you!

  BOE

  It is an ugly one. At least a restart if not re-install. To minimize downtime, you can close out of virtual machines to the inventory and put them on another host/cluster.

  ___________________

  A +, EASD, MCP, MCSA, MCSE, MCTS, MCITP, MCDBA, NCDA, VCP4

  If you find this or any other answer useful please consider giving points by checking the correct or helpful answer.

• ESXi disconnects from the vCenter

  Hello VMware,

  I have some problems with ESXi 4.1.0 (Build 260247) disconnect vCenter. I am currently evaluating Vmware View. I have no problem connecting to an ESX host to vcenter. When connecting vCenter ESXi host host will connect for about a minute and then disconnect. VCenter, Active Directory, DNS, DHCP, and ESXi host is all on the same network without any firewall between the two.

  I have an I tried by using the knowledge base article titled "Diagnose an ESX Server that is offline or does not respond in VirtualCenter" without success. I can connect the ESXi host with ssh and ping various servers on the network using dns and ip addresses.

  Is attached a copy of the message, pass and vxpa journal of the ESXi host.

  Any help would be greatly appreciated .

  Since the log files, it seems that you use vServers 4.0.

  Section for VMware VirtualCenter Agent, pid = 56646, version 4.0.0 build = build-208111 =, = exit option

  The host ESX (i) 4.1 require vCenter Server 4.1, this is why you must upgrade to vCenter Server to make it work.

  See http://www.vmware.com/pdf/vsphere4/r40/vsp_compatibility_matrix.pdf (page 3)

  André

• ESXi hosts disconnected/no response in Vcenter after upgrade (4.1 = > 5.5)

  Hello. I'm upgrading our current infra (hosts/Essential licensing Vcenter / 3 ESXi 4.1).  vCenter Server has been upgraded OK, so I started to esxi upgrade hosts one by one.

  Upgrade process is OK, but after the reboot, upgrade marked as "not responding" in vsphere client server. I could ping this host and connect via ssh.

  When you try to reconnect the client host, got a strange error "this edition of vCenter only supports 3 host (s) in the inventory. After 3-4 hours of nothing to host

  has begun to show ok. After upgrading a second host, the same situation. I don't understand, how to solve it without waiting for another 4 hours.

  Restart of host management agents does not help.

  I remember I have a similar situation in the past where the number of licenses does not update as expected, i.e. required some time. What helped was to restart the server vCenter Server in my case. Maybe worth a try!

  André

• Disconnection of the VCenter ESX host

  Hi, I was wondering if anyone else has had this problem.  I have an installation of VMWare VCenter and 4.1 ESX servers.  Periodically, one of my ESX hosts will lose just login to the VCenter server and I need to re-add.  The host still pings, does not actually lose network connectivity or I receive an alert.  I've been searching newspapers with no luck yet.  Any help would be appreciated.

  Thank you

  good things!  Glad to see you go it is resolved

• 5.1 ESXi host disconnects

  One of our guests 5.1 ESXi 4 disconnects the VC. All the virtual machines on this host seem to work just fine however I can't do simple things like fast vMotioning all vm it. An attempt led to a vmotion taking an hour than to throw an error of something like its take too long.

  I spoke with vmware support, and they say that the problem is related to one of my volumes in my SAN. I have a PS6110E EqualLogic and the firmware and the firmware of hard drives are up to date.

  When I ssh host and cd to the directory of Volumes and try to list the contents of the directory, it crashes and I have to open a new session in Putty. When I go in the volumes directory and replace the directories by a known volume of good, all right. I can see its content very well. Opening upward the Group Manager indicates the volume of the suspect as having enough available disk space and there is no alarm. Access to command line with this volume name, however, results in a lock upward.

  VMWare support says I have a problem with this volume and that seems to be the case, but while I wait for a response from support, I thought I'd see if someone might have any idea what I can watch in the meantime.

  Thank you

  Dave

  The problem had nothing to do with the SAN, it turns out that. Apparently, there was a sort of hang up handshakes between the host and the VC. I had a difficult start to the host and restart the VC too to restore the handshake between the two. All right.

  Thank you

  Dave

• Dell VRTX + vCenter 5.5 + Shared storage is ESXi host import issue in vCenter. Help, please!

  All,

  I have two VRTX to be used for lab purposes that I am currently in configuration.

  Blades feature 4 VRTX with a shared storage infrastructure. Each blade has 5.5 installed on ESXi.

  I configured the shared on the VRTX storage, and all the blades can go very well.

  The question I'm currently facing is when you add the vCenter for managing ESXi hosts.

  Add the first host goes without a hitch. However, add any later host fail, because vCenter finds datastore attached hosts to have the same identifier.

  The error message is (see the attached screenshot): ' Datastore 'Main Shared-storage' is in conflict with a store of data that exists in the data center which has the same URL (ds: / / vmfs/volumes/xxxxx /), but is supported by different physical storage.

  Someone knows how to fix this?

  Thank you.

  Thanks for the reply.

  I think that I have found a workaround.

  First of all, this link does not address my particular issue.

  See, it's a whole new vCenter device installation and configuration. Only one of the four hosts to add host has been added.

  Still, the problem is that each ESXi host is a blade VRTX (M620), which has access to the data store created on the shared storage of VRTX.

  Basically, each host is editing the data store shared even (the only data store created on the shared storage), which works very well except for vCenter complain when you import the hosts.

  In any case, my resolution was as follows:

  -Add the first host with the attached and mounted data store

  -Remove the data store and detach the controller shared by other guests before adding in vCenter

  -Re-attach the controller shared and set up the data store via vCenter once guests have been added

  -Re-configure each host for vSphere HA if necessary

  Thank you.

• ESXi host goes to the State and the virtual machine does not restart on other host does not

  Hi all

  I'm looking for a solution, in which case the host goes to the State and the virtual machine on it does not restart on a different host (they'll just gray) does not not what could be the problem here and how to fix it

  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)

• Cannot access ESXi host to download the vi client

  Just installed ESXi 3.5 on an HP DL360.  After that installation went and changed the configuration of network and account/password root via the console.  Now, I want to install the vi client.  I point a browser on my laptop to my ESXi 3.5 hosts and get a context connection.  I assumed that I would use my root account and the password, but it does not work.  How to do this?

  Never seen anything like this.

  Please check the ip address, subnet mask and gateway you have configured.

  If you use the host name of the ESXi in the browser, also make sure that solves the correct IP address. (nslookup YourHostName)

  The connection popup shows the name/IP of the ESXi host.

  BTW: What DL360 generation do you use. In my lab environment, I'm under ESXi 4 U1 on a DL360G4 without any problem.

  André

• Free ESXi: host removed from the inventory... How to re - add?

  1. I created a new local client as a test using the free ESXi and included Infrastructure Client 2.5.0

  .

  2. I stopped, went to the inventory list and chosen to remove inventory

  

  .

  3. I can see all the files are still present on the data store...

  

  .

  3B. this part incidentally is enough 'fun' to understand. There is no option menu anywhere to access the data store. The only way I found is to double click on the small icon...

  

  .

  4. How can I add this virtual machine in the inventory list and resume using this client I created with only the free ESXi tools?

  ,

  It seems that my only option to get a customer that is running is to make a new, or to "import" a via a weird file called a format *. OVF. Which is strange because that esxi uses not this format of its own client local file, as shown above in the data store.

  So, is the absence of a dialogue "Open existing VM" how VMWare is shooting free users in the foot?  It's the hidden gotcha that they use to force me to upgrade infrastructure for $3000 +, just to get a dialog box "open existing virtual machine"?

  -Melanie Dale

  Hi DMahalko, to add a virtual machine to inventory (re-record with the host country), you select the .vmx file in the window of the data store and click on the button all the way to the left of the toolbar in data store of the browser (the one with the logo of VMware as its icon). Who will start the wizard to add back to your inventory.

  For later use, you can also use the 'Search' tab in the browser of data store to find all the virtual machines in a data store. Simply select "Virtual Machines" in the drop-down and she will show you all virtual machines out there (including those who are already in the inventory). Hope that helps!

  Please, help me by awarding points for a 'useful' or 'proper' response if you think it is useful!

  -Amit