This article describes how to collect all esxi hosts information through powercli command.Login powercli and run the below details.# Connect-VIserverenter the VCSA nameTo get VM s… Read More

    This article describes how to troubleshooting the issueIssue: vSan network alarm 'vSan MTU check (ping with large packet size)'           vSa… Read More

 This article describes how to troubleshooting the issue.I recently encountered the issue, few paths  are dead after power outage of site.Rescanned the esxi hosts and no luck and f… Read More

 This article describes how to enable DPM step by step on vCenter.What is the DPM and how does it works ?DPM (Distributed Power Management)Distributed Power Management (DPM) is a power… Read More

 Esxi Host Certificate StatusThis article describes how to troubleshooting the issueI recently encountered the issue esxi hosts are showing Certificates are expired. When I checked on c… Read More

This article describes how to collect all esxi hosts information through powercli command.Login powercli and run the below details.# Connect-VIserverenter the VCSA name To get SSH… Read More

 This article describes how to troubleshooting the issue.Issue: A general system occurred: internal errorI recently encountered the issue, I was unable to enable lock down mode and gett… Read More

This article describes how to troubleshooting vSAN witness host disks issue. Error: Errors occurred on the disk(s) of a vSAN host.I recently encountered the issue, snapshots are not abl… Read More

This article describes how to troubleshooting the issue.SummaryVMware vSphere Lifecycle Manager had an unknown error. Check the events and log files for detail.Resolution 1:-> My scenario… Read More

This article describes how to clear space on partition being full on vCenter ApplianceI recently encountered the issue.  /storage/core full got full while check… Read More

 This article describes how to troubleshooting the issue.I'm facing the issue, when tried to login VDI machines getting the below errorError: "The SAM database on the windows server doe… Read More

 This article describes how to troubleshooting the issueError's:" vSphere HA host status""vSphere HA agent for this host has an error : vSphere HA agent cannot be installed or conf… Read More

 This article describes how to reduce the size of disk in VMwareSometimes extending the space more than as required space. This scenarios, you can reduce the space on disk level.Pr… Read More

  This article describes how to troubleshooting/fix the issue.Issue/Error: mystic password is not workingHow to reset mystic password if get locked:- > Login VxRail Manager… Read More

 This article describes how to troubleshooting/fix the issue. Issue/error:- "vSAN cluster alarm 'vSAN Cluster Configuration Consistency"Recently we built vxrail enviorment, we are… Read More

This article describes how to troubleshooting the issue. Error "Delete virtual machine " cannot complete the operation due to an incorrect request to the server ""Virtual machine Consol… Read More

 This article describes how to exclude the disks from snapshot.I observed, In my environment backup job has been configured few VM's has 2 disks out of 7. When backup job initiated… Read More

 VMware ESXi vim-cmd Commandsvim-cmdCommands available under vim-cmd/:vimsvc/hbrsvc/solo/hostsvc/ proxysvc/  As you can see, there are sub-command categorieslet’s d… Read More

This article describes how to troubleshooting the issue.This message "Sync (RPO Violation)" simply means that you exceeded RPO time determined when configuring VM Replication, Rece… Read More

This article describes how to troubleshooting the issue. Issue: Failed to deploy OVF package. ThrowableProxy.cause A general system error occurred: Provider method implementation threw… Read More

This article describes how to troubleshooting the issue.Issue: "Cannot retrieve replication disk space requirement: Failed to serialize response"Recently I encountered the issue, while… Read More

 This article describes how to troubleshooting the issue.Issue: A general system error occurred: PBM error occurred during PreReconfigureCallback: Fault cause: vmodl.fault.SystemErrorSt… Read More

This article describes how to troubleshooting the issue.Issue: Invalid configuration for device '0'Recently I encountered the issue, while performing the disaster recovery plan recovery… Read More

 vSphere replica VM's are not reachable after rebootThis article describes how to troubleshooting Virtual machines (VMs) by using console.Recently I encountered the issue, vSphere… Read More

       How to check speed between two VM'sThis article describes how to test network speed between two virtual machines (VMs) by using the Iperf tool.Download Iperf tool… Read More

I just ran into a problem where backup jobs were failing when using the snapshot quiesce option.Errors:  snapshot: Failed to quiesce the virtual machine'An error occurred while sa… Read More

 How to perform DR test step by step.There are two components are Disaster recovery concept (SRM/vSphere replica). Mainly SRM tool help perform DR test/plan can perform.Test plan: It is… Read More

To verify orphaned vmdk files thorough esxcli commands.Best method to identify orphaned .vmdk files by using RV tools. These orphaned files are not used anyway. These files are occupied… Read More

 No hosts with hardware version '19' and datastore(s) '"datastore"' which are powered on and not in maintenance mode are available.we encountered the issue, when we run the SRM test and… Read More

How to change SSL certificates on vSphere replica VM.Recently I'm facing the issue web browser is showing " not secure" while logging into vCenter and vSphere replica VM's.Issue: CA certific… Read More

                     HPE Superdome useful commandsIt is required to perform the health checks after replaced the hardware parts.After m… Read More

 The parent virtual disk has been modified since the child was created. The content ID of the parent virtual disk does not match the corresponding parent content ID in the child Failed… Read More

 I encountered the issue, while power on the VM, getting the below error on tasks/events." Power On virtual machineStatus Unable to create virtual SCSI device for scsi1:0, '/vmfs/v… Read More

 Create a VM Network Adapter to Replication Traffic on the additional vSphere Replication Appliance.In my environment, need to configure additional NIC for replication traffic. By defau… Read More

I encountered the problem while doing the storage migration.  The following error message is displayed.Error:" Failed waiting for data. Error 195887250. Migration determined a fail… Read More

I'm encountering the issue "Failed to quiesce the virtual machine" on one VM in vCenter.when we try to take manually and eanble quiesce option its not happening… Read More

I encountered the problem of vCenter not being able to login and receiving the error shown below."no healthy upstream" I ran a putty session and double-checked a couple things.# df -h#… Read More

Recently, I was required to reset the passwords of the esxi hosts one by one.To change the esxi host password, simply follow the procedures below.> Enable SSH on esxi host.> Log in to… Read More

 Recently while working with storage team, as they suggested to IOP limitation value as 1.Modifying the IOPS limitation to 1 will improve performance where an active storage path might… Read More

I was experiencing a disk health issue on an ESXi host in a vSAN setup.Possible solution :-Replace the disk and recreate the disk group on esxi (during the maintenance time) to address the i… Read More

 How to enable Clustered VMDK Support on a datastore.In my scenario, vmdk support was necessary on virtual machines. We should make a request to the storage team.The storage team will e… Read More

 We built new ESXi hosts and created new dvSwitch.I encountered the following error while converting a port group from vSwitch to dvSwitch."Update network configurationStatus An er… Read More

 How to collect the emc grabs from ESXi host.I recently received collect the details for ESXi host. following the below steps to collect the details.The following versions of ESX are su… Read More

 How to rename vmdk file in vmwareI recently received a request to rename the vmdk file on each VM.This procedure is a little more complicated. If the instructions are not followed corr… Read More

 Hyperthreading not enabling on esxi hosts.When we tired to enable Hyperthreading option on esxi host.Make sure esxi host should be maintenance mode.> Go to confi… Read More

 To identify which drives correspond to which disks> Login windows server via RDP or virtual machine console.> Click Start > Run, Type compmgmt.msc and click ok.> Clic… Read More

 cannot unmount volume 'datastore' because one or more virtual machines are still registered on it. correct the problem and retry the operation.I recently encountered this problem; I at… Read More

 How to update QLogic version to be supported version on Dell MX servers Recently I worked on Dell chassis servers and need to update the Q logic firmware version on each serv… Read More

 Dell-MX chassis 750C hardware compatibility I was planning MX chassis 750C hardware on esxi hosts. While checking compatibility collected required information. Sources for fu… Read More

How to Enable NIC Partitions in the BIOSI'm utilizing the Dell MX chassis 750 C servers. On the vCenter side, we can see two NICs rather than six.To resolve the issue, we must enable NI… Read More

 Publish operation failed and host is showing not ready on NSX managerI upgraded the NSX-V version to the most recent. but not ugpraded from this host in the NSX manager side.Make sure… Read More

  vCenter not able to login getting the below error  "HTTP Status 500 – Internal Server Error"I attempted to log in but received the error "HTTP Status 500 - Internal Server… Read More

Recently, we have encountered ESXi hosts that are not responding due to gateways that are not available on physical NICs assigned to vmkernal ports.As I began troubleshooting, I received no… Read More

When you need to test the communication between vCenter and Esxi hosts. On the putty session, run the commands shown below.Ping the Vcenter IP and check port connectivity from host ssh sessi… Read More

 How to check the vCenter IP address on an ESXi host using the command line.I recently modified the vCenter IP address as well as the vlan. Following that, a few ESXi hosts were updated… Read More

 Certificate Manager tool do not support vCenter HA systems.When I started run the certificate tool command and getting this error. Cause:-VCSA is missing the /var/tmp/vmware … Read More

 Recently built HPE Superdome Flex 280 servers and observed below error on ILO console and called as RMC also.To resolve the issue, we need to login ILO console IP via putty sessio… Read More

 Reset the Admin Password using the Unified Access Gateway Console.As based on our default age expiration password is 90 days. So we need to reset admin password for login if it is expi… Read More

ESXi and VM  commands for troubleshooting. It is useful when want to check the logs Read More

 UCS- CRC counters errors.Recently we faced one issue which was CRC counters on ports on UCS side. Due to this issue VM's performance were degraded and slow responses.To workaround the… Read More

 Esxtop command is powerful tool for identity the current utilization.Login Esxi host through putty session and run the esxtop command.> esxtop> Press V command to display the all… Read More

 Some useful commands to get information. To get disk information: Read More

To get scratch location details on each cluster , NTP and Hyperthrading details through powercli script.Login powercli and run the below details.# Connect-VIserverenter the VCSA nameTo get s… Read More

 How to check DC name of vCenter VMwhenever we troubleshooting the issues, if required FQDN with registered on database side.Please run the below command on VCSA via putty session.>… Read More

 vSphere DRS functionality was impacted due to unhealthy state vSphere Cluster Services caused by the unavailability of vSphere Cluster Service VMs. vSphere Cluster Service VMs are requ… Read More

 How To fetch SRMDB password via command lineWill get fetch SRM DB password on SRM server through command line, > Login SRM servers by using admin credentiasls>  Then ty… Read More

 Unable to login VCSA through WINSCPI was facing the issue, when I tried to login vCenters appliance through WinSCP getting error.To fix the issue, it should enable bash on vCenter appl… Read More

 setting ip/ipv6 configuration failed: {'IP configuration not allowed',}Today, I tried to change IP address via GUI method. I'm getting error " setting ip/ipv6 configuration failed… Read More

 Recently, I was verified the agent and status of services on esxi host. And restarted services on using below commands.Login Esxi host via putty session and run below commands[root@usd… Read More

 Application blocked by java securitySometimes, we are not able to login some IP's and getting error " Application blocked by java security"I was faced same issue when I try to login UC… Read More

I recently faced the issue. When I applied the patches on esxi host though life cycle manager its getting on below error.  There are two methods to apply the patch on esxi hosts. … Read More

How to upgrade DELL firmware  of ESXI host.I started recently upgrade the firmware version of Dell esxi hosts which are standalone hosts.Note: This article preferred not  part of c… Read More

 I recently upgraded from 6.7 to 7.0 U3 version but when I tried to login alias name getting SSO authentication error. In order to fix the issue we have to alias name into vCenter VM.I… Read More

    I noticed that one warning alert on protection group. one VM was showing "invalid protected VM deleted". Troubleshooting steps:-> Search that VM into vCenter whether&nb&hell…Read More

 I recently started looking at prerequisites to a vSphere 7 upgrade, by reviewing the associated upgrades that might be needed. NSX Manager was one product that needed to be upgraded pr… Read More

 HOW TO FIND VCENTER INSTANCES REGISTERED WITH YOUR PSCI recently facing the issue while upgrade the SRM. We want to be check registered instances on vCenter.Open an SSH session to the… Read More

I recently started looking at prerequisites to a vSphere 7 upgrade, by reviewing the associated upgrades that might be needed. VMware Site Recovery Manager was one product that needed to be… Read More

As part of troubleshooting,  check boot history of esxi hosts. In vCenter, we can able to see uptime details on summary tab of esxi hosts.what is the vmksummary.logA summary of ESX… Read More

  ESXI APD ( All Path Down) Issues.All Paths Down (APD) is a condition where all paths to the storage device are lost or the storage device is removed. The state is caused because the c… Read More

I recently facing the issue, datastore's are not visible after upgrade the esxi hosts from 6.0 to 6.7 U3.I have performed the esxi host upgrade via update manager.  No issue was trigger… Read More

Upgrade firmware from 2.0.(3d) to 4.1 (2h) CIMC standaloneMain challenge console page was not able to login by using GUI because Flash player deprecated. So we have to perform the upgrade by… Read More

 How to remove orphaned from vcenter I recently had an issue to remove orphaned vms from vcenter. Those vms are part of replica(composer VMs from horizon VDI).unfortunately we are… Read More

 How to get ESXi boot device of esxi hostIf you need to see the current boot device of ESXi or from which device ESXi is running then follow below steps. 1. Enable SSH on ESXi host… Read More

 How to power off virtual witness host in vSANI'm facing one challenge, I need to put esxi host maintenance mode where reside witness vm. Therefore, I followed bellow steps before… Read More

How to test connectivity between esxi and other server.I had an issue while deploy the NSX-V GI vms on vcenter. Getting error while deploy the vm due to ports blocking.As part of troubleshoo… Read More

 Identify Virtual Machine Locks & Find ESXi Hosts by its MAC AddressI recently had one issue which was one drive missing.it was not possible to identify which ESXi host holds the lo… Read More

 Changing the ESXI host forgotten root password using PowerCliIn my recent experience forgot a few esxi hosts root password. There is multiple methods to reset password. But  which… Read More

 What is a virtual SAN cluster?VMware vSAN (formerly Virtual SAN) is a hyper-converged, software-defined storage (SDS) product developed by VMware that pools together direct-attached st… Read More

vscsistats  tool for troubleshooting the virtual machines storage performance esxtop is a great tool for performance analysis of all types.  However,  with only latency a… Read More

 Unable to login VMware vCenter Server Appliance by using WinSCP.Recently, I'm facing the issue where not able to login vCenter appliance by using WinSCP.and getting the below error.Err… Read More

 How to change SSL certificates on vCenters VM.Recently I'm facing the issue web browser is showing " not secure" while logging into vCenter and VAMI portals.Issue: CA certificates are… Read More

 While login into vCenter appliance https://XXXXX:5480 getting the below error.Exception in invoking authentication handler User password expiredCause:-This issue occurs when the root p… Read More

 HOSTD The vmware-hostd management service is the main communication channel between ESX/ESXi hosts and VMkernel. If vmware-hostd fails, ESX/ESXi hosts disconnects from vCenter Ser… Read More

 Unable to apply DRS resource settings on host. we see an error message on the host summary tab.To understand the issue, you can refer to the management agents logs, namely the ESXi hos… Read More