Right-click the ESXi host in the cluster and select 'Connection', then 'Disconnect'. 2. So the 1st ESXi to update now have 4 vCLS while the last ESXi to update only have 1 vCLS (other vCLS might had been created in earlier updates). Configure and manage vSphere distributed switchesSorry my bad, I somehow missed that it's just a network maintenance. I am also filtering out the special vCLS VMs which are controlled automatically from the vSphere side. enabled = false it don´t delete the Machines. But when you have an Essentials or Essentials Plus license, there appears to be. Please wait for it to finish…. We tested to use different orders to create the cluster and enable HA and DRS. So with vSphere 7, there are now these "vCLS" VMs which help manage the cluster when vcenter is down/unavailable. If the ESXi host also shows Power On and Power Off functions greyed out, see Virtual machine power on task hangs. clusters. Operation not cancellable. clusters. 0 U2 (Dedup and compression enabled vSAN) . vSphere DRS in a DRS enabled cluster will depend on the availability of at-least 1 vCLS VM. If that host is also put into Maintenance mode the vCLS VMs will be automatically powered off. These VMs are created in the cluster based on the number of hosts present. Right-click the first vSphere Cluster Services virtual machine and select Guest OS > Shut down. Unmount the remote storage. Repeat for the other ESXi hosts in the cluster. This includes vCLS VMs. clusters. Admins can also define compute policies to specify how the vSphere Distributed Resource Scheduler (DRS) should place vCLS agent virtual machines (vCLS VMs) and other groups of workload VMs. vSphere Cluster Service VMs are required to maintain the health of vSphere DRS" When im looking in to my VM and Templates folers there is an folder called vCLS but its empty. The VM could identify the virtual network Switch (a Standard Switch) and complains that the Switch needs to be ephemeral (that we now are the only type vDS we. 00200, I have noticed that the vast majority of the vCLS VMs are not visable in vCenter at all. x, unable to backup datastore with vCLS VMs. 0 U1 and later, to enable vCLS retreat mode. On the Select storage page, select the sfo-m01-cl01-ds-vsan01 datastore and. There are no entries to create an agency. On the Select a migration type page, select Change storage only and click Next. This datastore selection logic for vCLS. terminateVMOnPDL is set on the hosts. This issue is resolved in this release. Some of the supported operation on vCLS. Anyway, First thing I thought is that someone did not like those vCLS VMs, found some blog and enabled "Retreat mode". If this tag is assigned to SAP HANA VMs, the vCLS VM anti-affinity policy discourages placement of vCLS VMs and SAP HANA VMs on the same host. 0U1 install and I am getting the following errors/warnings logged everyday at the exact same time. This, for a starter, allows you to easily list all the orphaned VMs in your environment. clusters. . Illustration 3: Turning on an EVC-based VM vCLS (vSphere Cluster Services) VMs with vCenter 7. • Describe the function of the vCLS • Recognize operations that might disrupt the healthy functioning of vCLS VMs 10 ESXi Operations • Use host profiles to manage ESXi configuration compliance • Recognize the benefits of using configuration profiles 11 Managing the vSphere Lifecycle • Generate vCenter interoperability reportsEnable the Copy&Paste for the Windows/Linux virtual machine. Basically, fresh Nutanix cluster with HA feature enabled is hosting x4 “service” Virtual Machine: As far I understand CVMs don’t need to be covered by the ROBO. Rod-IT. All vCLS VMs with the Datacenter of a vSphere Client are visible in the VMs and Template tab of the client inside a VMs and Templates folder named vCLS. vCLS VMs are not displayed in the inventory tree in the Hosts and Clusters tab. The cluster has the following configuration:•Recover replicated VMs 3 vSphere Cluster Operations •Create and manage resource pools in a cluster •Describe how scalable shares work •Describe the function of the vCLS •Recognize operations that might disrupt the healthy functioning of vCLS VMs 4 Network Operations •Configure and manage vSphere distributed switchesvSphere DRS and vCLS VMs; Datastore selection for vCLS VMs; vCLS Datastore Placement; Monitoring vSphere Cluster Services; Maintaining Health of vSphere Cluster Services; Putting a Cluster in Retreat Mode; Retrieving Password for vCLS VMs; vCLS VM Anti-Affinity Policies; Create or Delete a vCLS VM Anti-Affinity Policy; Create a vSphere. Cluster1 is a 3-tier environment and cluster2 is nutanix hyperconverge. I click "Configure" in section 3 and it takes the second host out of maintenance mode and turns on the vCLS VM. Browse to the . ; If this is an HCI. Every three minutes a check is performed, if multiple vCLS VMs are. Which feature can the administrator use in this scenario to avoid the use of Storage vMotion on the. It actually depends on what you want to achieve. MSP is a managed platform based on Kubernetes for managing containerized services running on PC. 2. I would recommend spreading them around. The Issue: When toggling vcls services using advanced configuration settings. Mark as New; Bookmark; Subscribe; Mute;Why are vCLS VMs visible? Hi, with vSphere 7. config. For the cluster with the domain ID, set the Value to False. AndréProcedure. vcls. DRS balances computing capacity by cluster to deliver optimized performance for hosts and virtual machines. vSphere. See VMware documentation for full details . . 2. these VMs. Things like vCLS, placeholder VMs, local datastores of boot devices, or whatever else i font wanna see on the day to dayWe are using Veeam for backup, and this service regularly connects/disconnects a datastore for backup. vCLS VMs are always powered-on because vSphere DRS depends on the availability of these VMs. In the vSphere 7 Update 3 release, Compute Policies can only be used for vCLS agent VMs. Click on Enable and it will open a pop-up window. xxx. vCLS VM placement is taken care of by the vCenter Server, so user is not provided an option to select the target datastore where vCLS VM should be placed. power on VMs on selected hosts, then set DRS to "Partially Automated" as the last step. x and vSphere 6. 2. 0. vCLS monitoring service runs every 30 seconds. Run lsdoctor with the "-t, --trustfix" option to fix any trust issues. 06-29-2021 03:34 AM. 0 U1 With vCenter 7. Log in to vCenter Server, select a host or cluster, and on the Virtual Machines tab specify the virtual machines on which to perform a VMware Tools upgrade. w. If vCenter Server is hosted in the vSAN cluster, do not power off the vCenter Server VM. The vCenter Server does not automatically deploy vCLs after attempting retreat mode due to an agency in yellow status. However, what seems strange is that these VMs have been recreated a whole bunch of times, as indicated by the numbers in the VM names: vCLS (19), vCLS (20), vCLS (21), vCLS (22), vCLS (23), vCLS (24), vCLS (25), vCLS (26), vCLS (27) I've noticed this behavior once before: I was attempting to. Note: vSphere DRS is a critical feature of vSphere which is required to maintain the health of the workloads running inside vSphere Cluster. 0 Update 1, DRS depends on the availability of vCLS VMs. Bug fix: The default name for new vCLS VMs deployed in vSphere 7. Reply. Put the host with the stuck vcls vm in maintenance mode. I have now seen several times that the vCLS VMs are selecting this datastore, and if I dont notice it, they of course become "unreachable" when the datastore is disconnected. Immediately after shutdown new vcls deployment starts. Normally…yesterday we've had the case were some of the vCLS VMs were shown as disconnected; like in this screenshot: Checking the datastore we have noticed that those agents VM had been deployed to the Veeam vPower NFS datastore. clusters. vSphere DRS functionality was impacted due to unhealthy state vSphere Cluster Services caused by the unavailability of vSphere Cluster Service VMs. 3) Power down all VMs in the cluster running in the vSAN cluster. Select the vCenter Server containing the cluster and click Configure > Advanced Settings. Click the Monitor tab. 0 Update 1, DRS depends on the availability of vCLS VMs. See Unmounting or detaching a VMFS, NFS and vVols datastore fails (80874) Note that. Again, I do not want to encourage you to do this. Unmount the remote storage. enabled and value False. vCLS uses agent virtual machines to maintain cluster services health. vCLS VMs are system managed - it was introduced with vSphere 7 U1 for proper HA and DRS functionality without vCenter. Do note, vCLS VMs will be provisioned on any of the available datastores when the cluster is formed, or when vCenter detects the VMs are missing. You can however force the cleanup of these VMs following these guidelines: Putting a Cluster in Retreat Mode This is the long way around and I would only recommend the steps below as a last resort. flag Report. This folder and the vCLS VMs are visible only in the VMs and Templates tab of the vSphere Client. ) Starting with vSphere 8. Prior to vSphere 7. The algorithm tries to place vCLS VMs in a shared datastore if possible before. wfe_<job_id>. 00500 - vSAN 4 node cluster. For example, if you have vCLS VMs created on a vSAN datastore, the vCLS VM get vSAN encryption and VMs cannot be put in maintenance mode unless the vCLS admin role has explicit migrate permissions for encrypted VMs. keep host into maintenance mode and rebooted. Resolution. service-control --start vmware-eam. Actual exam question from VMware's 2V0-21. In total, two tags should be assigned to each VM: a node identifier to map to an AZ and a cluster identifier to be used for a VM anti-affinity policy (to separate VMs between hosts within one AZ). 1. Looking at the events for vCLS1, it starts with an “authentication failed” event. vCLS VM is a strip-down version of the photon with only a few packages installed. So, think of VCSA as a fully functional virtual machine where vCLS are the single core 2 GB RAM versions of the VCSA that can do the same things, but don't have all the extra bloat as the full virtual machine. VCLS VMs were deleted and or previously misconfigured and then vCenter was rebooted; As a result for previous action, vpxd. As a result, all VM(s) located in Fault Domain "AZ1" are failed over to Fault Domain "AZ2". You shut down the vSphere Cluster Services (vCLS) virtual. Wait a couple of minutes for the vCLS agent VMs to be deployed. We had the same issue and we had the same problem. 3. The Agent Manager creates the VMs automatically, or re-creates/powers-on the VMs when users try to power-off or delete the VMs. Log in to the vCenter Server Appliance using SSH. In the Migrate dialog box, clickYes. Enable vCLS on the cluster. W: 12/06/2020, 12:25:04 PM Guest operation authentication failed for operation Validate Credentials on Virtual machine vCLS (1) I: 12/06/2020, 12:25:04 PM Task: Power Off vi. It will maintain the health. 0 U2 to U3 the three Sphere Cluster Services (vCLS) VMs . See vSphere Cluster Services for more information. Now it appears that vCLS vms are deploying, being destroyed, and redeploying continuously. 300 seconds. After the release of vSphere 7. The status of the cluster will be still Green as you will have two vCLS VMs up and running. In a lab environment, I was able to rename the vCLS VMs and DRS remained functional. It offers detailed instructions, such as copying the cluster domain ID, adding configuration settings, and identifying vCLS VMs. Placing vCLS VMs on the same host could make it more challenging to meet those. When you create a custom datastore configuration of vCLS VMs by using VMware Aria Automation Orchestrator, former VMware vRealize Orchestrator, or PowerCLI, for example set a list of allowed datastores for such VMS, you might see redeployment of such VMs on regular intervals, for example each 15 minutes. Starting with vSphere 7. vCLS is also activated on clusters which contain only one or two hosts. These agent VMs are mandatory for the operation of a DRS cluster and are created. zip. But in the vCenter Advanced Settings, there where no "config. Resource. But when you have an Essentials or Essentials Plus license, there appears to be. py --help. I'm trying to delete the vCLS VMs that start automatically in my cluster. Enable vCLS for the cluster to place the vCLS agent VMs on shared storage. service-control --start vmware-eam. 2. As VMs do vCLS não. 0 Update 1c, if EAM is needed to auto-cleanup all orphaned VMs, this configuration is required: Note: EAM can be configured to cleanup not only the vCLS VMs. Recover replicated VMs; vSphere Cluster Operations Create and manage resource pools in a cluster; Describe how scalable shares work; Describe the function of the vCLS; Recognize operations that might disrupt the healthy functioning of vCLS VMs; Network Operations Configure and manage vSphere distributed switches1. In case the affected vCenter Server Appliance is a member of an Enhanced Linked Mode replication group, please be aware that fresh. On smaller clusters with less than 3 hosts, the number of agent VMs is equal to the numbers of ESXi hosts. Within 1 minute, all the vCLS VMs in the cluster are cleaned up and the Cluster Services health will be set to Degraded. Operation not cancellable. clusters. Up to three vCLS VMs must run in each vSphere cluster, distributed within a cluster. In my case vCLS-1 will hold 2 virtual machines and vCLS-2 only 1. You don't have to worry about those VMs at all. I'm new to PowerCLI/PowerShell. 1. New anti-affinity rules are applied automatically. VMware acknowledges the absolute rubbish of 7. Note: After you configure the cluster by using Quickstart, if you modify any cluster networking settings outside of Quickstart, you cannot use the Quickstart. These VMs should be treated as system VMs. Click Edit Settings. I think it's with more than 3 hosts a minimum of 3 vCLS is required. To run lsdoctor, use the following command: #python lsdoctor. S. 5 also), if updating VC from 7. No luck so far. In the interest of trying to update our graceful startup/shutdown documentation and code snippets/scripts, I’m trying to figure out how. Checking this by us, having Esxi 6. When there are 2 or more hosts - In a vSphere cluster where there is more than 1 host, and the host being considered for maintenance has running vCLS VMs, then vCLS VMs will. The vCLS monitoring service initiates the clean-up of vCLS VMs. domain-c(number). Click Invoke Method. Do it on a VM-level or host-level where vCLS is not on, and it should work just fine. chivo243. VMware released vSphere Cluster Services in version 7 Update 1. I am also filtering out the special vCLS VMs which are controlled automatically from the vSphere side. We are using Veeam for backup, and this service regularly connects/disconnects a datastore for backup. vcls. To run lsdoctor, use the following command: #python lsdoctor. 300 seconds. But honestly not 100% certain if checking for VMware Tools has the same underlying reason to fail, or if it's something else. 12Configure Virtual Graphics on vSphere60. Here’s one. Original vCLS VM names were vCLS (4), vCLS (5), vCLS (6). Launching the Tool. These VMs are identified by a different icon than. Password reset succeeds but the event failure is due to missing packages in vCLS VM which do not impact any of the vCLS functionality. We would like to show you a description here but the site won’t allow us. On the Virtual machines tab, select all three VMs, right-click the virtual machines, and select Migrate. Click Edit Settings, set the flag to 'true', and click. What we tried to resolve the issue: Deleted and re-created the cluster. ESX cluster with vCLS VMs NCC alert: Detailed information for host_boot_disk_uvm_check: Node 172. e Deactivate vCLS on the cluster. Reply. So, think of VCSA as a fully functional virtual machine where vCLS are the single core 2 GB RAM versions of the VCSA that can do the same things, but don't have all the extra bloat as the full virtual machine. All vCLS VMs with the. Once I disabled it the license was accepted, with the multiple. In vSphere 7. . If you create a new cluster, then the vcsl vm will be created by moving the first esx host into it. Hi, I have a new fresh VC 7. 2015 – Reconnect session (with Beth Gibson -First Church of Christ, Scientist) April 2016 –. 1. NOTE: From PowerChute Network Shutdown v4. A vCLS VM anti-affinity policy describes a relationship between VMs that have been assigned a special anti-affinity tag (e. domain-c7. <moref id>. 0 Update 1, there are a set of datastore maintenance workflows that could require some manual steps by users, as vCLS VMs might be placed in these datastores which cannot be automatically migrated or powered off. VMware vCLS VMs are run in vSphere for this reason (to take some services previously provided by vCenter only and enable these services on a cluster level). What I want is all VMs that are in a specific cluster AND a specific folder, but attempting any combination of the above throws errors. Resource Guarantees: Production VMs may have specific resource guarantees or quality of service (QoS) requirements. Viewing page 16 out of 26 pages. Click the Configure tab and click Services. vmx) may be corrupt. The vCLS agent VMs are tied to the cluster object, not the DRS or HA service. 0. 2. Deselect the Turn On vSphere HA option. Disable “EVC”. How do I get them back or create new ones? vSphere DRS functionality was impacted due to unhealthy state vSphere Cluster Services caused by the unavailability of vSphere Cluster Service VMs. Disconnected the host from vCenter. Note: vCLS VMs are not supported for Storage DRS. vCLS hidden. vCLS VMs from all clusters within a data center are placed inside a separate VMs and templates folder named vCLS. Then apply each command / fix as required for your environment. host updated with 7. 7. Starting with vSphere 7. Connect to the ESXi host managing the VM and ensure that Power On and Power Off are available. The algorithm tries to place vCLS VMs in a shared datastore if possible before. <moref id>. #python lsdoctor. If vSphere DRS is activated for the cluster, it stops working and you see an additional warning in the cluster summary. Or if you shut it down manually and put the host into Maintenance Mode, it won't power back on. When Fault Domain "AZ1" is back online, all VMs except for the vCLS VMs will migrate back to Fault. Enable vCLS for the cluster to place the vCLS agent VMs on shared storage. Click Edit. 03-30-2023 05:18 AM. 2. They 100% exist, you can see the files in the datastore when browsing and when you login directly to the ESXi host. To learn more about the purpose and architecture of vCLS, please see. In the Migrate dialog box, clickYes. Hi, I had a similar issue to yours and couldn't remove the orphaned VMs. Affected Product. The default name for new vCLS VMs deployed in vSphere 7. I am trying to put a host in mainitence mode and I am getting the following message: "Failed migrating vCLS VM vCLS (85) during host evacuation. When you do full cluster-wide maintenance (all hosts simultaneously) the vCLS VMs will be deleted, and new VMs will be created indeed, which means the counter will go up“Compute policies let you set DRS’s behavior for vCLS VMs” Note also that the vCLS virtual machines are no longer named with parenthesis, they now include the UUID instead. NOTE: When running the tool, be sure you are currently in the “lsdoctor-main” directory. As a result, all VM(s) located in Fault Domain "AZ1" are failed over to Fault Domain "AZ2". If you want to get rid of the VMs before a full cluster maintenance, you can simply "enable" retreat mode. Click Edit Settings. The agent VMs form the quorum state of the cluster and have the ability to self-healing. Successfully stopped service eam. Symptoms. It ignores the host that has the vSphere VM, which is good. This workflow was failing due to EAM Service unable to validate the STS Certificate in the token. ago. The vCLS vm is then powered off, reconfigured and then powered back on. n. vsphere Cluster -> Configure -> vSphere Cluster Service -> Datastores -> Click "Add" and select preferred Datastore. 1. When datastore maintenance mode is initiated on a datastore that does not have Storage DRS enabled, an user with either Administrator or CloudAdmin role has to manually storage migrate the Virtual Machines that have vmdks residing on the datastore. Per this VMware document, this is normal. Improved interoperability between vCenter Server and ESXi versions: Starting with vSphere 7. 0 Kudos 9 Replies admin. To resolve this issue: Prior to unmount or detach a datastore, check if there are any vCLS VMs deployed in that datastore. The VMs are not visible in the "hosts and clusters" view, but should be visible in the "VM and templates" view of vCenter Server. The agent VMs form the quorum state of the cluster and have the ability to self-healing. The datastore for vCLS VMs is automatically selected based on ranking all the datastores connected to the hosts inside the cluster. 7 so cannot test whether this works at the moment. Both from which the EAM recovers the agent VM automatically. g Unmount the remote storage. Since the use of parenthesis is not supported by many solutions that interoperate with vSphere, you might see compatibility issues. In this article, we will explore the process of migrating. vCLS VMs will automatically be powered on or recreated by vCLS service. Datastore enter-maintenance mode tasks might be stuck for long duration as there might be powered on vCLS VMs residing on these datastores. HCI services will have the service volumes/datastores created, but the vCLS VMs will not have been migrated to them. Madisetti’s Theories on vCLS VMs and DRS 2,0 VMware seeks to exclude as untimely Dr. VMware vCLS VMs are run in vSphere for this reason (to take some services previously provided by vCenter only and enable these services on a cluster level). Select the host on which to run the virtual machine and click Next. When you power on VC, they may come back as orphaned because of how you removed them (from host while VC down). ” Since all hosts in the cluster had HA issues, none of the vCLS VMs could power on. Resolution. The lifecycle of MSP is controlled by a service running on Prism Central called MSP Controller. can some one please give me the link to KB article on properly shutting down Vmware infrastructure ( hosts, datastore,vcsa (virtual)). Impact / Risks. Do not perform any operations on these. Follow VxRail plugin UI to perform cluster shutdown. Successfully started. In vSphere 7 update 1 VMware added a new capability for Distributed Resource Scheduler (DRS) technology consisting of three VMs called agents. Check the vSAN health service to confirm that the cluster is healthy. Then apply each command / fix as required for your environment. 2. I would *assume* but am not sure as have not read nor thought about it before, that vSAN FSVMs and vCLS VMs wouldn't count - anyone that knows of this, please confirm. Patent No. The agent VMs are manged by vCenter and normally you should not need to look after them. The workaround was to go to Cluster settings and configure a datastore where to move the vCLS VMs, although the default setting is set to “All datastores are allowed by the default policy unless you specify a custom set of datastores. Repeat steps 3 and 4. SSH the vCenter appliance with Putty and login as root and then cut and paste these commands down to the first "--stop--". Simply shutdown all your VMs, put all cluster hosts in maintenance mode and then you can power down. In your case there is no need to touch the vCLS VMs. 30-01-2023 17:00 PM. Custom View Settings. Reply. The vSphere Cluster Service VMs are managed by vSphere Cluster Services, which maintain the resources, power state, and. Clusters where vCLS is configured are displayed. enabled" from "False" to "True", I'm seeing the spawing of a new vCLS VM in the VCLS folder but the start of this single VM fails with:"vSphere DRS functionality was impacted due to unhealthy state vSphere Cluster Services caused by the unavailability of vSphere Cluster Service VMs. 1 (December 4, 2021) Bug fix: On vHealth tab page, vSphere Cluster Services (vCLS) vmx and vmdk files or no longer marked as. vCLS VMs will need to be migrated to another datastore or Retreat Mode enabled to safely remove the vCLS VM. Rebooting the VCSA will recreate these, but I'd also check your network storage since this is where they get created (any network LUN), if they are showing inaccessible, the storage they existed on isn't available. Functionality also persisted after SvMotioning all vCLS VMs to another Datastore and after a complete shutdown/startup of the cluster. Disconnect Host - On the disconnect of Host, vCLS VMs are not cleaned from these hosts as they are disconnected are not reachable. [05804] [Originator@6876 sub=MoCluster] vCS VM [vim. This option was added in vSphere 7 Update 3. 0 VMware introduced vSphere Cluster Services (vCLS). Affected Product. VMware 2V0-21. Unfortunately it was not possible to us to find the root cause. This post details the vCLS updates in the vSphere 7 Update 3 release. I’ve have a question about a licensing of the AOS (ROBO per per VM). If the host is part of a partially automated or manual DRS cluster, browse to Cluster > Monitor > DRS > Recommendations and click Apply Recommendations. vCenter thinks it is clever and decides what storage to place them on. 0 Update 3 environment uses the pattern vCLS-UUID. If the agent VMs are missing or not running, the cluster shows a warning message. 0 VMware introduced vSphere Cluster Services (vCLS). W: 12/06/2020, 12:25:04 PM Guest operation authentication failed for operation Validate Credentials on Virtual machine vCLS (1) I: 12/06/2020, 12:25:04 PM Task: Power Off vi. So what is the supported way to get these two VMs to the new storage. vcls. Verify your account to enable IT peers to. Placed the host in maintenance. Need an help to setup VM storage policy of RAID5 with FTT=1 with dedup and compression enabled vSAN Datastore. You cannot find them listed in Host, VM and Templates or the datastore view. The lifecycle for vCLS agent VMs is maintained by the vSphere ESX Agent Manager (EAM). After following the instructions from the KB article, the vCLS VMs were deployed correctly, and DRS started to work. 2. If vCenter Server is hosted in the vSAN cluster, do not power off the vCenter Server VM. The vCLS agent virtual machines (vCLS VMs) are created when you add hosts to clusters. See Unmounting or detaching a VMFS, NFS and vVols datastore fails (80874) Note that vCLS VMs are not visible under the Hosts and Clusters view in vCenter; All CD/DVD images located on the VMFS datastore must also. vSphere 7's vCLS VMs and the inability to migrate them with Essentials licenses. vcls. vCLS VMs are always powered-on because vSphere DRS depends on the availability of these VMs. 0 Update 1, this is the default behavior. These VMs are deployed prior to any workload VMs that are deployed in a green. Run lsdoctor with the "-r, --rebuild" option to rebuild service registrations. 1. vCLS. Note: vSphere DRS is a critical feature of vSphere which is required to maintain the health of the workloads running inside vSphere Cluster. I followed u/zwarte_piet71 advice and now I only have 2 vCLS VMs one on each host, so I don't believe the requirement of 3 vCLS is correct. A quorum of up to three vCLS agent virtual machines are required to run in a cluster, one agent virtual machine per host. Workaround. The configuration would look like this: Applying the profile does not change the placement of currently running vm's, that have already be placed on the NFS datastore, so I would have to create a new cluster if it takes effect during provisioning. tests were done, and the LUNS were deleted on the storage side before i could unmount and remove the datastores in vcenter. the vCLS vms will be created automatically for each cluster (6. 5 U3 Feb 22 patch. Retreat Mode allows the cluster to be completely shut down during maintenance operations.