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 Details EVC stands for Enhanced vMotion Compatibility. This is a vCenter cluster feature which simplifies vMotion compatibility issues across CPU generations. EVC automatically configures server CPUs with Intel FlexMigration or AMD-V Extended Migration technologies to be compatible with older servers. After EVC is enabled for a cluster in the vCenter Server inventory, all hosts in that cluster are configured to present identical CPU features and ensure CPU compatibility for vMotion. The features presented by each host are determined by selecting a predefined EVC baseline. vCenter Server does not permit the addition of hosts that cannot be automatically configured to be compatible with the EVC baseline. Solution More recent processor architectures are compatible with EVC. The maximum EVC mode that can be supported...

  Symptoms Unable to copy the file content from Virtual Machine using the VMRC Purpose This article provides the basic steps to enable the Copy/Paste between the VMRC client and Windows/Linux Virtual Machine. The Copy/Paste between VMRC client and MacOS virtual machine is not supported currently. NOTE :  This Steps provided in the kb helps you to copy the data only not file/folder. However, you can copy the content of entire file but not the file.  This is per VM level configuration Resolution To resolve this issue: Install or upgrade the VMware tools for the Windows/Linux virtual machine(VM). For more information see  Installing and upgrading VMware Tools in vS...

  Symptoms Logging in to the vCenter Server or vCenter Server appliance (VCSA) using the vSphere Web Client fails. Accessing the vCenter Server or vCenter Server appliance using the vSphere Web Client fails. You see these errors similar to: 503 Service Unavailable. 503 Service Unavailable (Failed to connect to endpoint: [N7Vmacore4Http20NamedPipeServiceSpecE:0x00007fb7d00200a0] _serverNamespace = / action = Allow _pipeName =/var/run/vmware/vpxd-webserver-pipe) Note: vCenter STS Certificate may expire soon in certain configuration and you will observe the symptoms mentioned in this KB if STS certificate is expired, please refer following KBs to verify the validity of STS / Signing Certificate and replace it if already expired: Checking Expiration of STS Certificate on vCenter Server "Signing certificate is not valid" - Regenerating and replacing expired STS certificate using shell script on vCenter Server Appl...

      Details Adding an existing virtual machine disk (VMDK) to a virtual machine that is already powered on fails.                 Failed to add disk scsi0:1. Failed to power on scsi0:1   Powering on the virtual machine results in the power on task remaining at 95% indefinitely. Cannot power on the virtual machine after deploying it from a template. Powering on a virtual machine fails with an error: Unable to open Swap File Unable to access a file since it is locked Unable to access a file <filename> since it is locked Unable to access Virtual machine configuration In the /var/log/vmkernel log file, you see entries similar to: WARNING: World: VM xxxx: xxx: Failed to open swap file <path>: Lock was not free WARNING: World: VM xxxx: xxx: Failed to initialize swap file <path>   When opening a console to the virtual machine, you may receive ...