Disconnected ESXi host cannot reconnect to VCenter

Similar Questions

• 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.

• Disconnected ESX host cannot add to the CR

  It started with me being unable to power on a virtual machine that I created because of "Insufficient resources to meet the level of failover configured for HA" which is great because that's how to configure HA.  I tried to reconfigure the AP to the host by double-clicking on the host and select this option.  Once I did that it failed about 30% with "an error has occurred while setting up the HA Agent on the host" and the networking page disappeared from the configuration tab similar to what a lot of people reported during the upgrade, I think an earlier version.  This is not the case, I did not update anything.  Then I restarted service service mgmt-vmware restart and the ESX host disconnected from the VC altogether.  I can't use the VI client to connect to the host in question, but I am connected via the service console. All VM and the host not to requests ping and everything works. I've disabled HA and DRS and tried to add new ESX host that has not worked.

  Any help is appreciated.  Thank you.

  I found this article that has the same symptoms as you.

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=1004451

  Check if your esx.conf file is corrupted. Follow the directions in the KB article to restore or recreate.

  Arnim - van Lieshout

  -

• Windows 2008 R2 VM disk system increased substantially after moving from VM to ESXi host 5.1 to 5.5 ESXi host using vCenter Converter Standalone

  Hello:

  I moved a Windows 2008 R2 VM from a 5.1 ESXi host to an ESXi host 5.5 using vCenter Converter Standalone.  The c: / drive system passed largely to where I now have to extend the volume.  Is this normal/expected behavior?  Perhaps the conversion/move creates temporary files I can delete?

  Thanks much for the ideas.

  This is not the expected behavior.

  Size of the disk is defined during the conversion and which will not increase by its own during conversion.

  Now, you need to V2V, if you want to reduce the volume.

• Change the name of the logfile refelect esxi host name

  Hello

  I'm changing the name of the log file to reflect the name of each host name in listed in a file text How would I have done that?

  Thank you

  CODE

  --------

  ##Load VimAutomation PSSnapin...
  If ((Get - PSSnapin - name VMware.VimAutomation.Core - ErrorAction SilentlyContinue) - eq $null)
  {Add-PSsnapin VMware.VimAutomation.Core - ErrorAction SilentlyContinue}
  
  ##Set server Mode...
  SetPowerCLIConfiguration - Multiple DefaultVIServerMode - confirm: $false

  #Get # hosts.txt file ESXi host list...
  $varHost = get-Content "S:\Get-Logs\hosts.txt".

  The cluster name #Enter...
  $Cluster = Read-Host "enter the cluster name.

  
  ##Path to clear the logs...
  $FilePath = "S:\Get-Logs\Logs\" + $Cluster + "\".

  Cluster ##Create folder...
  If ((New-Item - path $FilePath ItemType - directory - ErrorAction SilentlyContinue) - eq $null)
  {- New - path $FilePath ItemType - directory - ErrorAction SilentlyContinue}

  
  Password ##Root
  #Convert to ensure the chain...
  $varGetPassword = Read-Host "enter the ESX Root Password" - AsSecureString
  $ESXRootPassword = [Runtime.InteropServices.Marshal]: PtrToStringAuto([Runtime.InteropServices.Marshal]::SecureStringToBSTR($varGetPassword)))
  
  ESXi hosts ##Connect
  Write-Host "" connection to the ESXi host: ', $varHost ' "»
  SE connect-VIserver $varHost - user 'root' - password $ESXRootPassword - WarningAction SilentlyContinue
  
  ##Do something useful here...
  ##------------------------------------------------------------------------------
  {foreach ($ESX to $varHost)
  
  Get - Log - VMHost (Get-VMHost-name $ESX) - Bundle - DestinationPath $FilePath
  }
  ##------------------------------------------------------------------------------

  
  
  ##Disconnect Esxi host
  Write-Host "" disconnect from ESXi host: ', $varHost ' "»
  Disconnect-VIServer $varHost - confirm: $false
  
  The script ##End

  End CODE

  ---------------

  The cmdlet Get - Log do not create the destination folder if it does not exist, so you will need to test for this condition.

  AFAIK, you don't need to connect to each ESXi individually when you are connected to the vCenter.

  Since the discharge of generated log file name is rather cryptic, I rename the file normally and add a timestamp.

  You could do something like that

  $clusterName = "mycluster.

  $FilePath = 'S:\Get-Logs\Logs\$($clusterName) ".

  If (!) ((Test-Path-path $FilePath)))

  {

  Novelty - ItemType Directory - Path $FilePath

  }

  $varHost = get-Cluster-name $cluserName | Get-VMHost

  {foreach ($ESX to $varHost)

  $destPath = "$($FilePath)-$($ESX.). Name.Split('.') [0])"

  If (!) ((Test-Path-path $destPath)))

  {

  Novelty - ItemType Directory - Path $destPath

  }

  $logName = get - Log - VMHost $ESX - Bundle - DestinationPath $destPath

  If ($LogName)

  {

  Rename-Item - Path $logName - NewName "$($destPath)-$($ESX.). Name.Split('.') [0])-$((Get-Date).) ToString('yyyy-MM-dd-hh-mm')).

  }

  }

• Can't access ESXi host after VLAN for MGMT has been implemented?

  Hello

  We run ESXi 5.1 and recently to get our network

  Network administrator has received only 5 VLAN for MGMT vSwitch.  Since then, we are not able to ping on the ESXi host, or access in vCenter.

  He received different VLAN for vMotion and vSwitch and VM.

  Just would like to ask your advice what changes I need to do?

  Hello

  That doesn't sound right. You have 3 different vSwitches with 2 ports on each, so you can not the team together on the side of the switch.

  This would have been right if you had a vDS with 6 uplinks and various exchanges by the feature that you do not.

  You have need of the network is to set up 3 different teams one by vSwitch and to start with that you have the management must be in the access mode so that you can retrieve with your ESX box connectivity.

  Also the vMotion didn't need to be mode trunk you'll only of vMotion. Data (VM) must be master.

• Script to check the version of Cisco VEM on ESXi host

  Hallo,

  I need help, a script to check and report in a CSV file, the version of Cisco Nexus 1000v VEM on all ESXi hosts connected to a vCenter.

  Basically, "vem version - v" but for all the ESXi hosts connected to a vCenter.

  Thank you

  Joseph

  I suspect you could use PowerShell v1, in this version that the Export-Csv has not had the UseCulture parameter.

  Try to run the script without this parameter.

  But I would strongly suggest to upgrade your version of PowerShell (v3 is available)

• 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.

• 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

• 5.1 ESXi host rest disconnected when it is connected to the new vCenter Server 6

  Hello

  I created a new version of vCenter Server 6.

  I have e vCenter Server 5.1 connect my 5.1 hosts.

  I want to connect hosts to the new vCenter and then upgrade to ESXi 6 guests.

  I disconnect hosts on the old vCenter.

  The I connect hosts to the new vCenter, and it happens with all the vm´s, etc..

  But it is disconnected.

  And it keeps beeing disconnected even when you try to connect again.

  If anyone has experienced this?

  Thank you

  Thomas

  Have you added these hosts in your new server vCenter along with their licenses?

  Otherwise, if please add host license in your vCenter license inventory and assign to those of your hosts and then try to re - connect.

• 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.

• Cannot access ESXi host in Vcenter after moving to accommodate different subnet

  I moved a different host EXSi 5.5 on a new subnet at a physical site.  The host has been identified by IP not the DNS name.  After the start of Vcenter, I realized my mistake.  The host is always identified by the old IP so it appears as disconnected.  I was hoping I'd be able to simply change the identification of IP address, but have not been able to see how to do this.  I also tried to remove the host (this configuration has a data center and a host), but I can't do it.  I can't add the host (with the new IP address) I get an error message that the data store is identified with the original host.

  Is there an easy way to this?

  Welcome to the community - you need to remove the old entry in your inventory (using the command delete inventory) and then re-add the ESXi host FULL domain name.

  I also moved it to a more appropriate forum-

• 5.5 ESXi hosts disconnection of the vCenter 5.5.0b

  Good evening.  I recently deployed some new hosts HP BL465c G8 running the HP OEM install ESXi 5.5 (not the one just released 02/18) and the two hosts have been disconnect from vCenter four times in the past week.  I can sometimes connect to the host via ILO and restart the vCenter agent, but more often without having to start the host hard.  In addition, one of the VMFS5 content of the data store disappeared and the virtual machines residing on this data store have declined because the hosts could not find the configuration of the virtual machine files. Strangely enough, the data store showed spaced used and I could see all the directories within the CLI, but not vCenter client or Web-based Client.  I have two tickets to windows with VMware from HP support team, but I wanted to know if someone had a similar problem.  I'm tempted to rebuild with the latest OEM installation or rebuild as 5.1 or 5.0 if version 5.5 is not fully cooked.  Thank you.

  Scott

  The issue proved to be the OEM HP install and specifically the pilot v1.1.7 for HBA QMH2572 adapters that it contains.  We have rebuilt our 5.5 ESXi hosts using installation OEM HP published 02/14 (contains recommendations
  v1.1.12 pilot) and that solved the problem of stability.

  Scott

• Cannot add 6.0 ESXi host to vCenter 6.0

  Hi guys,.
  I'm having a problem where I can not add any ESXi 6.0 host to vCenter 6.0. I can add an ESXi 5.5 without problem.

  I have the error that I get in the vpxd log is:

  2015 06-18 T 16: 36:37.312 + 01:00 info vpxd [03624] [sub Originator@6876 vpxLro = 120602 ca opID =] [VpxLRO] - tache-interne-69093--datacenter-26--vim BEGIN. Datacenter.queryConnectionInfo--524f7656-a68d-ef60-05e7-f24ec8a5f1b5(52359e42-f098-7b77-bc82-0cff38aa6ff9)

  2015 06-18 T 16: 36:37.314 + 01:00 vpxd error [04352] [Originator@6876 = 000001-HttpConnectionPool sub] [ConnectComplete] connection failed for < cs p:0000000008c8bfb0, TCP:192.168.0.12:443 >; CNX: (null), error: class Vmacore::Ssl:SSLException(SSL_Exception:_error:140000DB:SSL_routines:SSL_routines:short_read)

  2015 06-18 T 16: 36:37.314 + 01:00 vpxd error [03624] [sub Originator@6876 = opID httpUtil 120602 ca =] [HttpUtil::ExecuteRequest] error in sending request - SSL Exception: error: 140000DB:SSL routines: SSL routines: short read

  I can ping and resolve all ESXi host and checked the SSL certs and they look good too.

  Any help would be appreciated

  Dougie cordially

  Found the problem as vCenter 6.0 version I was running. I was running an older version of the VC and the current version of ESXi.
  Downloaded the current version and reinstalled and all good.

  Dougie

• ESXi 5.5U2 host disconnects a few seconds added to vCenter

  Hi all, as a subject, really. I have been troubleshooting a problem where, when adding a remote host to vCenter, who host their product to unplug a few seconds.

  At first I thought it was my firewall rules, but I've sorted which and I don't no ACL denies more on them.

  I can connect to the host very well using the vSphere Windows-based client, so I do not understand it.

  Should what kind of information I add to this post to help the guy to help me?

  P.S., relatively new to VMware.

  Thank you, Mark

  Thanks for the advice... He led me to the correction, which was that VMware KB: NAT between the vCenter Server system and ESXi/ESX host using

  My vCenter was behind a NAT firewall that was causing the problem.

  Hope this helps others.