. An administrator is using the Host Failures to Tolerate Admission Control Policy for a vSphere High Availability (HA) cluster. VM {vm. vc. Select a number for the Host failures cluster tolerates. I just checked and none of them have any CPU or memory reservations set If VXR014030 warning appears on any host stop and then restart HA. Select vSphere Availability in the Services section of the Configure page for your cluster. In such cases, VMware HA will use VMware DRS to try to adjust the cluster (for example, by bringing hosts out of standby mode or migrating virtual machines using vMotion to defragment the cluster resources) so that VMware HA can perform the failovers. Expandable Reservations Example 1. ESXi 5. Insufficient configured resources to satisfy the desired vSphere HA failover level on the cluster. The administrator notices that the setup of vSphere. there are 2 options in cluster setting for admission control : Host failures cluster tolerates which i set that on 2 hosts. vSphere HA attempts to restart the VMs on other hosts in the cluster. How can we correct this. Insufficient resources to. 40GB with 16VMs running, highest "configured memory"'s VM = 4GB RAM ESX2 = 20GB RAM (current memory usage: 10. . I see that youThere is an issue with vSphere High Availability configuration for this cluster. All HA VMs are configured on host 1 as master for HA and Host2 for failover. HomeLab Information: Insufficient resources to satisfy configured failover level for vSphere HA. i have a cluster with 3 hosts with one of them as dedicated failover host, when enabling the Admission control i am receiving the below warning : insufficient configured resources to satisfy the desired vsphere HA failover level on the cluster the warning is c. in the Value column. By default, the alarm is triggered by the following event: vim. A. In this case, you can use the vSphere HA advanced options to reduce the slot size, use a different admission control policy, or modify the policy to tolerate fewer host failures. Dear all. Deselect the Turn On vSphere HA option. Deactivate Host Monitoring for the vSphere HA cluster. We have 2 ESX connecting with 1 iSCSI SAN, with HA & DRS enabled. the dedicated failover hosts. When VMware High Availability(HA) is turned ON. Requirement: The management servers are pinned to a specific data center but can be failed over to a second data center in the event of an outage. 1 - Insufficient resources to satisfy configured failover level for vSphere HA. once the process complete, go back and reenable HA (by selecting both the checkboxes). This issue occurs when the HA configuration of CPU or memory resources reserved for failover is violated or is insufficient to perform the intended task. Refer to the online vSphere Availability Guide for. the vsandatastore is empty. StartFTSecondaryFailedEvent| vSphere HA agent failed to start Fault Tolerance secondary VM {secondaryCfgPath} on host {secondaryHost} for primary VM {vm. The following workaround prevents the ESX from checking for insufficient COS memory. VMs would fail to be restarted on different hosts. i have a cluster with 3 hosts with one of them as dedicated failover host, when enabling the Admission control i am receiving the below warning : insufficient configured resources to satisfy the desired vsphere HA failover level on the cluster the warning is c. . “Insufficient resources to satisfy configured failover level for vSphere HA”. This behavior, while providing the most secure failover protection for your cluster, might create issues in certain scenarios: · If you violate the failover constraints because there is a temporary, but nontrivial, time period in which there are not enough resources to. VMware vSphere Troubleshooting. Now, I want to make a replication between of them, and to make a "failover cluster". By default, the alarm is triggered by the following events: vprob. The HA cluster is set to tolerate the loss of 1 host, although we. vSphere HA agent will retry until it times out. vSphere HA powers down the VMs. This provides for business continuity with failover time measured in seconds. Specifically, I'm struggling with the admission control settings on the. HA Admission Control configuration can be seen in the pics attached. RegardsMonitors the sufficiency of failover cluster resources required for vSphere High Availability. vCenter supports a logical hierarchy of data centers, clusters, and hosts, which allow resources to beBuenas Tardes; Tengo un problema donde los Blades se desconectan seguido en mi Virtual Center, pero unos segundos despues regresan y los equipos virtuales no se afectan ni se reinician. Sufficient resources are available to satisfy HA failover level. The hosts in the cluster are disconnected. Reconfigure or disable “Admission Control” so VM's will power on despite violating availability constraints. -Review your vSphere HA settings: Review your vSphere HA settings to ensure they are. Insufficient resources to satisfy vSphere HA failover level on cluster WYNNE in Wynne HQ. Topic #: 1. VMs would fail to be restarted on different hosts. We have been trying to gif a server 14GB of ram and make a full reservation for it. 1. This Fling enables you to perform a what-if analysis for host failures on your infrastructure. This document provides best practice guidelines for designing and implementing Microsoft SQL Server (“SQL Server”) in a virtual machine to run on VMware vSphere (“vSphere”). Cluster Problems. 2 Click the Advanced Options button to open the Advanced Options (HA) dialog box. Virtual machine failover was not successful. Insufficient Bandwidth on the Logging NIC Network. You can see the alarms have Acknowledge/Reset options, this is a Configuration Issue message instead. vSphere HA will retry the failover. #概要今回直面したエラー内容は以下の通り。「Insufficient resources to satisfy configured failover level for vSphere HA」Veeam backup & replicationを使用して旧基盤から新基盤にVMを移行させていた。マイグレーション作業及び新基盤にてVMの設定が完了した後、VMを起動させようとしたとき上記のエラーが発生… For example, if a VM is configured with a reservation that exceeds the available capacity of a host, this can prevent vSphere HA from successfully failing over the VM. If this solution is not possible, consider using a different vSphere HA admission control policy, such as reserving a percentage of cluster resource for failover. vsphere HA is turned on with response "restart VMs" Admission control configuration: Cluster summary says: Current resource consumption. This is my first attempt at HA. . Purpose. By default, the alarm is triggered by the following event: com. Click the Configure tab. Percentage of Cluster Resources Reserved As Failover Capacity. For example, if a VM is configured with a reservation that exceeds the available capacity of a host, this can prevent vSphere HA from successfully failing over the VM. event. 3. Besides writing on Yellow-Bricks, Duncan co-authors the vSAN Deep Dive book series and the vSphere Clustering Deep Dive book series. Cannot find vSphere HA master agent. Download the vSphere MIB and install in SNMP Trap. External. 1 cluster. Summary VM disks consolidation failed. 0. 19. vSphere HA will retry the failover. Result: VM is cloned and configured but will not start up due to "Insufficient resources to satisfy vSphere HA failover level on cluster" which was expected. Cause. HA. vSphere HA failover in progress: Alarm by default to be alerted when vSphere HA is failing on virtual machines: Cannot find vSphere HA master agent:If VXR014030 warning appears on any host stop and then restart HA. VMware Cloud Community. Highlight the erred cluster. Click Admission Control to display the configuration options. . 148GB RAM. net. 7 on a server and I nested 4 other ESXi hosts on top of it. HealthStatusChangedEvent: Health status of the vCenter HA Service changed. This fault may occur, for example, if a power-on operation reserves more memory than is allocated to a resource pool. InvalidMaster : EventEx : vSphere HA detected an invalid master agent : com. prior vSphere 5, HA had a huge dependency on the name resolution. Insufficient resources to fail over VM Name in Cluster Name that recides in Datacenter Name. 04-02-2012 05:34 AM. Resolutions. What did i do wrong or am not understanding. 0b: 3/14/2017: Batch mode install, upgrade, and unmount for multiple virtual machines selected from a virtual machine list; Client-side checks for insufficient. The first place I would look is in the cluster setting for HA. The ESXi version is 7. Insufficient resources to satisfy vSphere HA failover. Review your VM configurations to ensure they are compatible with vSphere HA. Now, the weirdest thing is that we DO have sufficient HA failover resources!! Here is our setup: 3 x HP blades, each with: 2 x hex-core 2Ghz Intel Xeon. "Insufficient vSphere HA failover resources". As a result you get the following alarm in vCenter: “Insufficient vSphere HA failover resources”. vSphere may report that consolidation is needed in case there is a snapshot on the disk which should be deleted, but the deletion process is stuck in the Consolidation state for one of the following reasons: Datastore performance. These solutions are typically deployed in environments where the distance between data centers is limited, often metropolitan or campus environments. md. md","contentType":"file"},{"name":"Set-vCenter51AlarmEmails. Causes. Set percentages depending to be approximately 1. The only difference between VM3 and VM4 is the Ram: 4Gb for Vm3 and 8Gb for Vm4. 3. Hosts in the cluster are monitored and in the event of a failure, the virtual machines on a failed host are restarted on alternate hosts. vSphere HA restarts VMs in another cluster. Cluster Resources Percentage Admission Control - you can mention the resource % over there to configure , if this is setting you can adjust and errro won't appear . C. We now have a situation where the main Cluster is flagging the error; "Insufficient resources to satisfy HA failover level on cluster" The cluster has 6 hosts, there's plenty of headroom. Steps 1. Refer to the online vSphere. prior vSphere 5, HA had a huge dependency on the name resolution. I started testing failure scenarios on a 2 node vSAN cluster. Will need to check the admission control and. Insufficient resources to satisfy configured failover level for vSphere HA. vSphere HA suspends the VMs until a host is available. vSphere HA virtual machine failover unsuccessful. When you create a vSphere HA cluster, a single. I am then able to power on the virtual machine. - Triggered Alarm: Insufficient vSphere HA failover resources - Configuration issue: Insufficient resources to satisfy vSphere HA failover level on cluster. Below is the CPU and memory usage on each host. jjkrueger. This alarm is only triggered when a HA action fails? I have a cluster of two hosts ESXi 5. Not always but sometimes we tend to see an alarm on a VM "vSphere HA virtual machine failover failed". Disable “EVC”. Refer to the errors list for details. vmware. This can happen because of too many fault tolerant virtual machines being on a host. and the other is Define host failover capacity by. com. Resolutions. Not always but sometimes we tend to see an alarm on a VM "vSphere HA virtual machine failover failed". Thank you for any help you can provide. Solution Check that all hosts in the cluster are healthy, that is, connected, not in maintenance mode and free of vSphere HA errors. Causes. the current host or even the entire rack encounters a failure. turn HA on/off didnt help admission controll is turned off, but even if i say 1 host can f. During HA failover, we are able to access our VMS & Hosts, then why its occurring?. If this solution is not possible, consider using a different vSphere HA admission control policy, such as reserving a percentage of cluster resource for failover. clear. . Veo un warning en el unico cluster que tenemos que indica que no soporta fallas. . . El clu. I have cleared my cluster alarms this morning. This Fling enables you to perform a what-if analysis for host failures on your infrastructure. We enabled HA & DRS. Browse Library Advanced Search Sign In Start Free Trial. Resolutions. Refer to VMware Online Documentation for more information about vSphere HA failover problems. The Passive node fails while trying to assume the role of the Active node. ) A. If is not ESXi resources or VM reservations we check if the Datastore where the VM is allocated to have enough free space. For more information see Setup for Failover Clustering and Microsoft Cluster Service; Power on task hangs:. D. "Insufficient configured resources to satisfy the desired vSphere HA failover level on the cluster" post vCenter 6. With the slot policy option, vSphere HA admission control ensures that a specified number of hosts can fail and sufficient resources remain in the cluster to fail over all the virtual machines from those hosts. Host {hostName} has some Fault Tolerance issues for virtual machine {vmName}. Scenario: Cluster biews shows that vSphere DRS is imbalanced. Select an option for Define host failover. Click Cluster Status. Configuration. Right-click and select “Edit Settings”. . want to guarantee failover of virtual machines. ; Right-click all hosts in the. Check if vCenter Server was just installed or updated. Right-click the host and select Maintenance Mode > Enter Maintenance Mode. André. D. Click on “Edit” and click on “Yes” when you are informed to not make changes to the VM. An ESXi host fails and vSphere HA attempts to restart the VMs onto the dedicated failover hosts. “Insufficient resources to satisfy configured failover level for vSphere HA”. When we disconnected of the energy the first host (shut down simulation), the second host only restart 4 VMs (including the vCenter Virtual Appliance), and the vCenter show the message. When I change admission control policy to "percentage of cluster resources reserved as failover spare capacity @ 25% cpu & 25% mem. Toda la carga esta sobre un host. lost. Host2: used to handle failover. Right-click the cluster and click Settings. Setting Alarms to Monitor Cluster Changes. redundancy. vCenter; Cluster level; Config; Vsphere availability; Uncheck box for Vsphere Availability ; OK; Enter Vsphere availability again and re-check the box; Save; Reset the warning to green Power up VMs that cannot start HA must respect VM anti-affinity rules during failover-- When the advanced option for VM anti-affinity rules is set, vSphere HA does not fail over a virtual machine if doing so violates a rule. An administrator enables vSphere High Availability (HA) on an existing cluster with a large number of hosts and virtual machines. But, in my case, i failed to put host 176 on 'Maintenance Mode' with alert ' insufficient resources to satisfy HA failover level on cluster '. Could it be memory use is spik. Hola, tenemos Vsphere Server 5 Essentials. Veeam VMware: vSphere HA failover in progress on vSphere Cluster. For PowerStore X cluster, the recommended value is 1. . In the vSphere Client, browse to the vSphere HA cluster. In Two node SDDC, While trying to power on VM getting below error: - Insufficient resources to satisfy configured failover level for vSphere HA. Configure VMware HA. And when you try to create and boot a new VM you get: “Insufficient resources to satisfy configured failover level for vSphere HA”. Click the Configure tab. The current failover level is not based on current cpu/memory usage but on the the vm reservations (ie. What is the easiest way to find out what server moved off of a host and were powered back on another host after an HA failover due to loss of a host? Reply. This behaves itself for about 1 hour and then the value for the Current Failover Capacity changes to 0 and so the "HA Insufficient resources to satisfy HA failover" alert appears even though there is 4 hosts in the cluster and working fine. Click the Manage tab and click Settings. I have the witness appliance running in a remote datacenter. vSphere HA will retry the fail over when enough resources are available. Hi, As I understand, you are unable to unable to turn on VMs in a HA cluster. VMware vSphere. Insufficient configured resources to satisfy the desired vSphere HA failover level on the cluster. Brian Atkinson | vExpert | VMTN Moderator | Author of "VCP5-DCV VMware. The HPE Simplivity Stretched Cluster solution works in cooperation with vSphere HA and vSphere DRS to ensure that when one or more HPE OmniStack System failures occur in a physical location, guest virtual machines can be restarted in a second location. This issue is resolved in vCenter Server 6. Revisando los LOGS del Cluster me aparece este mensaje seguido unos minutos antes de que pase el error: Insu. “Insufficient resource to satisfy vSphere HA failover level on cluster” issue, so y’all could take a misconfigured vSphere HA. Turn off the HA deploy VA then put HA back on . Admission control policy is enabled and Failover Capacity is 1 host. Admission control is set to 1 host failure toleration. event. Alguém já passou por este tipo de erro: insufficient resources to satisfy configured failover level for vsphere HA Alguém já passou por este tipo de erro: insufficient resources to satisfy configured failover level for vsphere HAaaaaaaa. "Power on Failures: Insufficient resources to satisfy configured failover level for vSphere HA. Have 6 ESXi 4. 7u1. 1 hosts in a Cluster. vSphere HA virtual machine failover failed. As soon as I power on and put some load on test VMs, additional ESXi host are being started (9) and VMs runs just fine, however I get the "Insufficient resources to satisfy vSphere HA failover" critical warning on cluster (7 hosts are still in standby and DPM is not trying to wake them up). Open the Hosts And Clusters View, right-click an existing cluster, and select the Edit Settings option. Insufficient configured resources to satisfy the desired vSphere HA failover. You can also configure how vSphere HA responds if hosts lose management network connectivity with other hosts by using the host isolation response setting. vSphere HA will retry the failover. maxresetsThis monitor tracks the vCenter Alarm 'vSphere vCenter Host Certificate Management Mode'. DasHostIsolatedEvent: This host in an HA cluster has been isolated. HealthStatusChangedEvent: Health status of the VMware vAPI Endpoint Service changed. Causes. Solution Check that all hosts in the cluster are healthy, that is, connected, not in maintenance mode and free of vSphere HA errors. Normally due to event "Insufficient resources to fail over this virtual machine. 1 Update 1) Two ESXi servers are in a HA and DRS enabled cluster. Tắt tính năng HA. md","path":"README. In this case, you can use the vSphere HA advanced options to reduce the slot size, use a different admission control policy, or modify the policy to tolerate fewer host failures. vSphere HA reports that an agent is in the Agent Unreachable state when the agent for the host cannot be contacted by the primary host or by vCenter Server. An ESXi host fails and vSphere HA attempts to restart the VMs onto the dedicated failover hosts. A forum thread where users discuss the meaning and resolution of the error "Insufficient vSphere HA failover resource" in vSphere HA. vSphere HA restarts VMs in another cluster. High availability configurations. 09-17-2018 06:12 AM. Link is expired, anyone can help? I have the same issues now. Not always but sometimes we tend to see an alarm on a VM "vSphere HA virtual machine failover failed". This article provides guidelines and vSphere support status for guest deployments using Microsoft Windows Server Failover Clusters (WSFCs) with shared disk resources across nodes in CAB configuration on VMware vSphere 8. By default, the alarm is triggered by the following event: vim. Using vSphere HA with Distributed Resource Scheduler (DRS) combines automatic failover with load balancing. once the process complete, go back and reenable HA (by selecting both the. Memory total: 178970Mb, Reserved: 124168. 2) is looking oka. vSphere HA will retry the fail over when enough resources are. Consequently, vSphere HA is not able to monitor the virtual machines on the host and might not restart them after a failure. How vSphere HA Works. Insufficient resources to. When an ESXi host fails, vSphere HA attempts to restart its virtual machines on any of the specified failover ESXi hosts. I tried a few different things in Admission Control tab, but even with Admission Control disabled it doesn't work. The maximum load we have on any one of the blades at any one time is 42GB RAM and less than 3Ghz processing power. We enabled HA & DRS. hi, ESXi 6. 198268. The available Memory resources in the parent resource pool are insufficient for the operation:A VMware vSphere Metro Storage Cluster configuration is a specific storage configuration that combines replication with array-based clustering. vc. The host has lost access to the storage device containing the virtual. Veeam VMware: Expired Virtual SAN license Alarm. 08-31-2009 10:54 PM. This monitor tracks the vCenter HA Service Health Alarm. PS: I do have like 3 Vms with "small" cpu/mem reservations. 5 environment, using percentage-based HA we have been seeing the following Configuration Issue flag on the cluster . i can't click play. Insufficient resources to. 4 Click OK. . What happens to the VMs? A. Summary The event indicates a loss in connectivity to the specified storage device. And when you try to create and boot a new VM you get: “Insufficient resources to satisfy configured failover level for vSphere HA”. 07-15-2009 04:32 PM. batuhandemirdal. See VMware online documents such as Troubleshooting VMware High Availability and the vSphere Troubleshooting Guide to resolve HA issues. Table 1 shows supported versions of Windows OS and VMware. . Solution: In vSphere Client select the failed FT operation in either the Recent Tasks pane or the Tasks & Events tab and click the View details link that appears in the Details column. If you have a cluster with 4 hosts and failover capacity set to 3, this means your cluster should be able to handle 3 host failures and run everything on the single node. vCenter; Cluster level; Config; Vsphere availability; Uncheck box for Vsphere Availability ; OK; Enter Vsphere availability again and re-check the box; Save; Reset the warning to green Power up VMs that cannot startWith dedicated failover hosts admission control, when a host fails, vSphere HA attempts to restart its virtual machines on any of the specified failover hosts. Select vSphere Availability and click Edit. The first place I would look is in the cluster setting for HA. Insufficient resources and vSphere HA failover. External{"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"LICENSE","path":"LICENSE","contentType":"file"},{"name":"README. {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"LICENSE","path":"LICENSE","contentType":"file"},{"name":"README. Not always but sometimes we tend to see an alarm on a VM "vSphere HA virtual machine failover failed". When attempting to put one host into maintenance mode I get the following alarm: Insufficient vSphere HA failover resources. Failover did not succeed. Niels Hagoort wrote a lengthy article on this topic here. Not enough resources for vSphere HA to start VM. As a result you get the following alarm in vCenter: “Insufficient vSphere HA failover resources”. Insufficient configured resources to satisfy the desired vSphere HA failover. If restart is not possible, for example, the failover ESXi hosts have insufficient resources or have failed as well, then vSphere HA attempts to restart the virtual machines on other ESXi hosts in the cluster. 2 X Processors (8 cores each) with HT enabled. Browse Library. redundancy. Insufficient Configured Resources To Satisfy The Desired VSphere HA Failover; Cause. 1 Update 1) and VCenter (4. To enable HA repeat the above steps and select Turn on VMware HA option. HA. For testing we enabled maintenance mode on one of the ESXi host where the VCSA VM is running, we expect the VM to migrate (vMotion) to the other host automatically, but getting warning message saying "Insufficient vSphere HA failover resources". vSphere HA Admission Control is responsible for this. VMware vSphere™ Discussions. Click Admission Control to display the configuration options. vSphere HA failed to restart a. If this solution is not possible, consider using a different vSphere HA admission control policy, such as reserving a percentage of cluster resource for failover. vSphere HA Settings for an all 10 GbE SimpliVity Deployment: vSphere HA: EnabledIf you use this configuration, the CD-ROM in the virtual machine continues operating normally, even when a failover occurs. ps1. 5. The problem can have the following causes: Hosts in the cluster are disconnected, not responding or are placed to the maintenance mode. If VXR014030 warning appears on any host stop and then restart HA. What happens to the VMs? A. If the host is part of an automated DRS cluster,. that i set that on Cluster resource percentage. Click OK. 1 hosts. This option can also be set to "false", whereby the rules are not enforced. Click OK. vCenter; Cluster level; Config; Vsphere availability; Uncheck box for Vsphere Availability ; OK; Enter Vsphere availability again and re-check the box; Save; Reset the warning to green Power up VMs that cannot startIf a host fails and its virtual machines must be restarted, you can control the order in which the virtual machines are restarted with the VM restart priority setting. If you have a cluster with 4 hosts and failover capacity set to 3, this means your cluster should be able to handle 3 host failures and run everything on the single node. By default, the alarm is triggered by the following events: HostCnxFailedNetworkErrorEvent. " Not once are these actually related to a HA event or does a VM reboot. Use a10-Gbit logging network for FT and verify that the network is low latency. 5. Check for new deployments of high-spec VMs, or reconfiguration of existing VMs with more resources (cpu/memory). {"payload":{"allShortcutsEnabled":false,"fileTree":{"":{"items":[{"name":"README. Raising the number of potential host failures to tolerate will increase the availability restraints and capacity reserved. Failed to flush the data to the Passive node. A vSphere HA failover is in progress. This is definitely the work of Admission control. Default vSphere alarms are set on the vCenter Server level and propagated to all child objects in the inventory. Insufficient resources to satisfy configured failover level for vSphere HA - Nguyên nhân: Tài nguyên của ESXi trong cluster không thể cấu hình HA được - Có 2 cách fix lỗi này. 12GB with 16VMs running), highest "configured memory"'s VM = 4GB RAM Number of host failures the cluster can tolerate =. For PowerStore X cluster, the recommended value is 1. To check the reservations for VMs, I would select the Cluster in your vCenter inventory, then select the "Resource Allocation" tab. . Right-click the cluster and click Settings. And when you try to create and boot a new VM you get: “Insufficient resources to satisfy configured failover level for vSphere HA”. YELLOW Status: Insufficient vSphere HA Failover Resources Alarm (to yellow) GREEN (clear) Status:Insufficient resources to satisfy HA failover level on cluster. . I try to activate HA and get the following messages: vCenter Server is unable to find a Master vSphere HA Agent in cluster XXX Cluster in XXX Datacenter. Review VMware online documents such as Troubleshooting VMware High Availability and the vSphere Troubleshooting Guide to resolve HA issues. When i try to start VM4 (HA) vmware won't start it, firing this error: Insufficient resources to satisfy configured failover level for vSphere. . Instead,. VMware HA and DRS are two critical vSphere features that will help solution providers monitor and manage VMs in their customer's environment. If restarting the virtual machines is not possible, for example the failover hosts have failed or have insufficient resources, then vSphere HA attempts to restart those virtual. B. Virtual Machine. Trigger conditions. . 1 In the cluster’s Settings dialog box, select VMware HA. If a restart is not possible, for example, the failover ESXi hosts have insufficient resources or have failed as well, then vSphere HA attempts to restart the virtual machines on other ESXi hosts in the cluster. Locate the cluster. Refer to the online vSphere Availability Guide for further guidance. HA initiated a failover action. Insufficient configured resources to satisfy the desired vSphere HA failover level on the cluster. vSphere HA will retry the failover. If an ESXi host fails, vSphere HA attempts to restart its virtual machines on any of the specified failover ESXi hosts. To resolve the issue you can do one of the following. I made 4 VMs as depicted in picture. Not always but sometimes we tend to see an alarm on a VM "vSphere HA virtual machine failover failed". vSphere HA failover in progress: Alarm by default to be alerted when vSphere HA is failing on virtual machines: Cannot find vSphere HA master agent:When the primary host in a VMware vSphere ® High Availability cluster cannot communicate with a secondary host over the management network, the primary host uses datastore heartbeating to determine whether the secondary host has failed, is in a network partition, or is network isolated. There two options in HA. Hosts in the cluster are monitored and in the event of a failure, the virtual machines on a failed host are restarted on alternate hosts. Check the status of the cluster (red or yellow) and resolve the situation. to see this working in practice and then i can decide if its to be good enough for production. 1; vSphere Availability 5. VMware vSphere High Availability allows organizations to ensure high availability for VMs and applications running on the VMs in a vSphere cluster (independent of running applications). The protection state is not changed to reflect whether HA can currently restart a VM. Turn off the HA deploy VA then put HA back on -Short term solution (not recommended)B. 3. Insufficient resources to satisfy configured failover level for vSphere HA I have two ESXi 5.