vCenter server appliance prompt is missing |Toggle between Shell prompt to appliance prompt.

If you see the vCenter shell prompt while login to Vcenter root login and if you want vCenter appliance prompt follow as :

login to VCSA using root:

Enter below command:
 chsh -s /bin/appliancesh root

Log out from the Appliance Shell.

Log in again for the changes to take effect.

How to create PVSCSI controller (VMware Paravirtual)

•  From VMware vSphere webclient

• Select VM and Edit settings page

• "Add a new device" and select SCSI controller

• On the New SCSI controller ->Change Type as "VMware Paravirtual"

• Save .

• Now while creating new Disk select this PVSCSI controller for the disk.

Configure or enable/disable TLS on ESXi server

•  Login to vCenter server Appliance using root credential.

• Go to path: /usr/lib/vmware-TlsReconfigurator/EsxTlsReconfigurator

• To Enable TLS 1.2 only to all ESXI hosts under a cluster:

       ./reconfigureEsx vCenterCluster -c <Cluster_Name> -u <Administrative_User> -p TLSv1.2

        :Vcenter server user name for ex:administrator@vsphere.local

• To Enable TLS 1.1,1.2 only to a specific host under the vCenter server:

    ./reconfigureEsx vCenterCluster -h <ESXI_host_Name> -u <Administrative_User> -p TLSv1.1                 TLSv1.2

     :Vcenter server user name for ex:administrator@vsphere.local

• Reboot ESXI host to commit the protocol change.

• verify the TLS enabled version  

        [root@R:~] openssl ciphers -v | awk '{print $2}' | sort | uniq
        SSLv3
        TLSv1.2
        [root@R:~]

 

Configure or enable/disable TLS on vCenter server

• Login to vCenter server Appliance using root credential.

• Go to path: cd /usr/lib/vmware-TlsReconfigurator/VcTlsReconfigurator

• To Enable TLS 1.2 only:

        ./reconfigureVc update -p TLSv1.2

• To Enable TLS 1.1,1.2 only

        ./reconfigureVc update -p TLSv1.1 TLSv1.2

• verify TLS Version

    root@localhost [ /usr/lib/vmware-TlsReconfigurator/VcTlsReconfigurator ]# ./reco                                                                                                             nfigureVc scan

How to delete ESXi vmkdump

VMKDUMP:

Typically, a partition to collect diagnostic information, also called VMkernel core dump, is created on a local storage device during ESXi Installation

Firstly list the core dump file (ssh to ESXI)

esxcli system coredump file list

[root@1:~] esxcli vm process kill --type=hard -w=1412715

[root@1:~] esxcli system coredump file list

Path                                                                                                                Active  Configured        Size

------------------------------------------------------------------------------------------------------------------  ------  ----------  ----------

/vmfs/volumes/5ae54067-fc83bd0a-8833-901b0ed032f0/vmkdump/63D5A403-A025-3F46-BB77-4EB94B28583C-3836739584.dumpfile    true        true  3836739584

[root@1:~]

De-activate actively using dump file using:

esxcli system coredump file set --unconfigure | -u

Remove the dumpfile

esxcli system coredump file remove -f /vmfs/volumes/5ae54067-fc83bd0a-8833-901b0ed032f0/vmkdump/63D5A403-A025-3F46-BB77-4EB94B28583C-3836739584.dumpfile 

Unable to power off VM from webclient and ESXCLI

 Unable to power off VM from webclient and ESXCLI

Issue:

• Tried power off/kill/reset from webclient and it hangs
• Tried from ESXI  CLI with:

[root@-s1:~] vim-cmd vmsvc/power.off 323

Powering off VM:

Power off failed

[root@-s1:~]

Solution:

• SSH to ESXI
• get world ID of your VM:

[root@:~] esxcli vm process list

VM1

   World ID: 2001025

   Process ID: 0

   VMX Cartel ID: 315952

   UUID: 42 0f 13 30 90 95 b7 41-65 2f d0 37 72 89 ba 0e

   Display Name: VM1

• Forcefully power off VM:

-w =>world ID

--type=soft/hard/force

[root@1:~] esxcli vm process kill --type=hard -w=1412715

[root@1:~]

How to upgrade VMware VM hardware Version?

 For upgrading VMware VM compatibility or HW version:

1. Login to vCenter Server
2. Select VM and Power OFF
3. Right click VM and select Compatibility

               now you can do VM HW version upgrade or schedule for later.

Configure UEFI enabled boot on windows VMware

The Unified Extensible Firmware Interface (UEFI)[1] is a specification that defines a software interface between an operating system and platform firmware. UEFI replaces the legacy Basic Input/Output System (BIOS) firmware interface

 VMware vSphere fully supports UEFI firmware and Secure Boot as part of vSphere 6.5 and newer.When creating a VIrtual Machine that is Windows 10 or Windows Server 2016 and later and you choose it be compatible with ESXi 6.7 and later. 

Install new Windows operating system:

1.Select the below option while create VM:

2.Change booting option for Firmware:

3.While booting use EFI Vmware options

4.VM will come up with EFI booting