Migration of VMs to other hosts in the cluster

Similar Questions

• Raw disk used by the prompt on the same host, broadcasts available on other hosts in the Cluster

  We have a Cluster of MS using RDMs in a host cluster ESXi 4.1 5.  The RDM physical Mode, on a guest on hostA, the storage is presented to the host b, hostC, pass, hostA, hostE.

  It has always been my understanding (and I saw with other RDMs in the past) when a ROW gets used by a hostA of comments, it will be posted is no longer in the pool of strage avalible under the window "Add Storage" on the host b.-e... I would still be able to see as RDM LUN if I went to a guest and added another hard drive, but the host would no longer display it as storage avalible.

  It is confirmed in the following article: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1016222

  In my scenario, I can still see the storage that has been given to a guest on HostA as a RDM on hostsB-E in the add storage window. (this cause some problems when let storage recover 'unused' LUNS and storage that has been considered as non-allocated was actually released several guests as RDM.)

  The article suggests that this occurs when the storage is not presented consistently on all hosts in a cluster.  We use EMC FC storage, and my storage administrators swear that LUNS are the same for all hosts in my cluster.

  I search in the KB articles information and empty to come... I'll open a case with VMware, but was wondering if someone else has experienced problems similar, and that has been done on your side to solve (and hopefully help someone to avoid any similar problems)

  In addition, there is an easy way to compare points of view "Add Storage" of all hosts in a cluster to verify that they see the same unallocated storage?

  No, if the number of LUNs and the naa numbers game (don't forget the 16 and the last 8 digits of number of naa are still the same according to the table), you can have row filtering disabled Please check

  The values below the default values are true

  • In the vSphere Client, select Administration > vCenter Server settings > Advanced settings.
  • According to your needs, add one of the following or the two key-value pairs:
  • config.vpxd.filter.rdmFilter; fake
  • config.vpxd.filter.vmfsFilter; fake

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=1010513

• Host cannot communicate with all other nodes in the cluster virtual SAN allowed

  I get this error after you apply the latest patch:- http://kb.vmware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 2135115

  So all the hosts are now review: VMware ESXi, 6.0.0 3380124

  After the reboot, I get the error message on the host cannot communicate with all other nodes in the cluster active virtual san...

  However, the VSAN health check is green, 'get esxcli vsan cluster' shows all 6 members of the cluster ok... and if I reboot a crowd happens ok without the error... so if I reboot another host, it will come without the error... but then the host on which I rebooted before it displayed the error...?  So I can't ever get more than 1 host without the error after a reboot.

  I checked multicast that removes ok, in fact all of the checks in contradiction with the fact that why I get this error...

  Someone at - it ideas? Could this be the latest patch...

  Paul...

  Hello, this has been repeated here: 6.0 U1b - hosts cannot communicate thanks, Zach.

• Error "host cannot communicate with all other nodes in the cluster of enabeld VSAN.

  Hello community,

  We have a problem (?).

  We have a cluster VSAN enabled with four hosts. Everything seems perfect,

  -the configuration is good,

  -Displays the page state VSAN "network status: (green arrow) Normal."

  -Displays the disk management page "status: healthy" for all of our groups of disks.

  -Same 'esxcli vsan cluster get"on each host returns a 'HEALTHY '.

  But we have a yellow exclamation littly on each host 'host cannot communicate with all other nodes in the cluster of enabeld VSAN.

  Anyone with the same problem? Anyone with an idea or a hint?

  Thank you!

  Update vcenter to the latest version and the error disappears. Problem solved! The 'old' version of vcenter performed since September 2014, strange.

  Thank you very much for your help!

• How one move the templates of virtual machine from one host to another host in the cluster even

  Hello

  Can you get it someone please let me know how to move the templates of virtual machine from one host to another host in the cluster even?

  Thank you

  James

  Welcome to the forums!

  Convert it to a virtual machine (right click on guest and choose the appropriateoption), move it through the migration feature (right-click Guest, and then choose "Migrate") and convert into a model (right click on guest again and choose to convert to a template).

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

  AWo

  VCP / vEXPERT 2009

• HA - Admission Control-number of failures of the host in the cluster can tolerate

  I currently have a 9 host cluster with the game of "Number of failures of the host in the cluster can tolerate" 1 and the VM to be powered even if they violate... 'allow' checked.

  When I look in my VI client to the HA cluster box it says "Current ability to failover" 7 and "Ability to failover" set up 1.

  The 1st statement really limits my cluster just 1 instead of the host or 3 of my guests would die if the VM to be powered even if they violate... "allow" ignore it? I know that you can set for a maximum of 4 failures of the host, but who does not eat resources on other hosts?

  I think I know the answer, but for some reason I guess any second myself.

  Thank you!

  > Does that mean that since I do 'Allow Virtual Machines to be powered even if they violate constraints of availability' have set up that it does not matter how many host fail? He will try to turn on VM as much as possible? Thank you

  Exactly

• Locking of the VMS in specific hosts in a cluster

  Is there a way to limit a virtual computer to a specific set of hosts in a cluster?

  I have created some DRS rules to separate and solidarity with virtual machines, but can not find a way (when it exists) to keep VMs locked to a set of hosts in a cluster.

  For example.

  8 guests: 6 with 16 GB of RAM and 2 with 32 GB of RAM

  2 development servers that will use 8 GB RAM each

  I want to force the dev VMs. 2 to migrate only between 2 hosts 32 GB while allowing the other VMS migrate freely among all the guests.

  Any ideas or suggestions are welcome

  Thanks in advance.

  DRS work in the field of the cluster, so there is no way actually lock VMs subset within the cluster

  If the creation of a separate cluster is not an option, a solution would be to keep the level of automation for those virtual machines to partially automated and then apply that recommendation which moves them to the desired hosts. Not a very optimal solution but it always work for non-critical virtual machines

  Méhul

  PS: If you correct or helpful answers, pl consider assigning points to perpetuate the spirit of these forums!

• migrate to esxi free host in the cluster paid with minimal downtime

  Please excuse my ignorance, I am very new to VMware and I am familiar with the concepts of other virtualization software, I used, but not some of the termininology, and maybe that's why my research are not turning to the top of what I need.

  We had been using the free esxi hypervisor based to host some server hosts.  These servers are running a copy of our database and are used for reporting applications.  They are also setup with files VMDK provisioned very large and thick (> 300 GB!).  They were spread great for a year now.  However, we just bought the VMWare "vSphere 4 Essentials Plus" kit for the creation of a cluster of 3 machine, with a few redunancy and other features we wanted.  We also have a new san to go with it.  We are very pleased with the product and move to her!

  On the other invited VM running on this host, (and several other hosts, its amazing to see how they arise) I stop the virtual machine and the vCenter Converter allows you to migrate the virtual computer to the new cluster.  At the same time, I would like to convert it to the thickness of a provisioning. However, because these clients have very, very big thickness provisioned HD, its research as they would take five hours or more to migrate. (other VM moved to essentially 1 GB/min)  These report servers can go without updates the master DB for several hours, but servers should always be available. I can't have them down for 5 hours. There are a lot of historical reports are refreshed by the end users.

  Is it possible for me to do what follows somehow? I can't understand:

  • disable the DB update
  • closing comments, take a quick snapshot and then launch the guest.
  • While his copy running (and not updated) main and VMDK files file to the cluster (therefore only changes to files in the snapshot file)
  • on the new cluster, once copied (or during the copy) convert the VMDK to a thin provisioned (given that only about 85 GB of data is used in fact to this topic).
  • Finally, bring up new comments on the cluster at the same time I get comments on the old host (and ignore the changes that have taken place on the snapshot file, since its mainly a readonly report server)? and re - activate the DB update.

  For end users who would be about 5 minutes total of downtime (basically, two reboots) which would be much easier to deal with than the 5 hours (each!) of how we are past other virtual machines would.

  If the stand-alone host has the same type of CPU and family, you will be able to add it to the cluster otherwise just add to vCenter. You will always have access to other features.

• What is the case with the 33rd host in the cluster?

  Hi all

  The limit for a DRS or a HA cluster is 32 ESX servers. What happens if you try to add a 33rd host?

  Well, I got up to 36 hosts in the same cluster and I haven't noticed any errors. Work of VMotion, DRS...

  ESX3.5 U2 and Virtual center 2.5 U3

  Best regards.

  Yes, as David said, there is a limit that has been tested by VMware, so it's a MAX supported.  Nothing will stop you from adding other nodes to a cluster, and it can work very well. But if something happens, you might reduce the node by number of clusters down a limit of support.

  On a side note, may I ask why you would have many hosts by cluster rather than simply create more clusters with a smaller amount of hosts?

• The name already exists error when you try to add the host to the cluster

  I created a cluster that currently has no inside host. When I try to add a host I get an error that says: "the name"ip address of the host, I add"already exists. I don't understand why I get this error if there is no showing on the cluster host. See below for the screenshot.

  Your screen shot shows hosts is already part of the inventory - if the host is already part of the theinventory have not need to add it again - simply drag and drop it into the cluster

• PowerCLI script to list cluster name, comments, and host in the Cluster name

  Greetings,

  I need script to the cluster name, comments list Powercli and ESXi Hostnames in the Cluster, and then export to a csv file

  Thank you

  I suppose you want the name of the cluster, host name and comments for all your virtual machines. This information, you can export it to a file .csv as follows:

  Get-VM |
  Select-Object -Property @{N="VM";E={$_.Name}},
  VMHost,
  @{N="Cluster";E={$_.VMHost.Parent.Name}},
  @{N="Guest";E={$_.Guest.OSFullName}} |
  Export-Csv -Path VMInfo.csv -NoTypeInformation -UseCulture
  

• Comments and host OS can ping each other; but all the other hosts on the same subnet cannot ping guest OS

  I use Bridge network.  I tried to delete and recreate the NIC (did not help). I've upgraded to the latest version of VMware Server (20.0.0 build 122589) with the same result. Stub here. Anyone have any ideas? Thank you.

  What is your host and guest operating system? Are WHAT NIC configured correctly (IP, DNS, gateway, etc.).

  Are all necessary ports (firewall, antyvir)?

  J.

• Installed the new host of the cluster issue

  I have currently two hosts that are in a cluster - I installed a new esxi server to add to this cluster.

  1 set up the vswitch for grouping etc... as the other guests

  2. cannot see other data stores.

  You are using an iSCSI device, I guess?  ESX material for the new host is right for the existing hardware?  If you want to disable the unused adapters, which must be done in the BIOS.

• Add the host to the cluster vmware and SAN equilogic

  Hello...

  I will add 2 new for our cluster vmware vsphere host... I have not done this before, but think that I got the hang of it...

  But one thing that I am uncertain the San connectivity, is it just to create the map of iscsi on the vsphere host software and then add the adapters iqn name to access the San volumes page and rescan for the accessible volumes in the vmware host?

  That's about all.   Reported Tech on how to do so expressly.

  en.community.dell.com/.../TR1075-Configure-iSCSI-Connectivity-with-VMware-vSphere-5.pdf

  TR1091 shows how to configure VMware ESXi for best practices with storage EQL.

  en.Community.Dell.com/.../Download

  In my environment I use CHAP credentials for clusters of ESXi.  In this way a specific set of ESXi nodes use the CHAP username/password to access EQL volumes.  Advantage is when you add a new node, you only need to provide the name of user and password c.  You will not have to change anything on the side of EQL to add/remove a node.

  Kind regards

• Create the new host to the Cluster and Cluster

  Hi team,

  Have we not document or steps to create the new Cluster and add host to cluster?

  In addition, what are the post configuration that must be done on the ESX host? As switch, Nic, the data store Configuration?

  Should we add the storage front of cluster before adding the host?

  A process document or a step will be really useful.

  We plan to automate the process and any entry is really useful.

  Thanks and greetings

  Riyas Hussain has

  For starters, it is User Guide PowerCLI, that comes with the installation of PowerCLI.

  And there are a lot of messages and blog discussions in this community that meet some or all of your questions.

  See for example establishment of data centres, Clusters and adding ESXi host VMware vCenter 5.x with PowerCLI

  Storage is assigned to ESXi hosts and for use in a clustered environment, you will probably want a shared storage.

  Maybe you need to split issues separate, more specific issues.

  This would make it easier to respond in this community.