power off / get state of vm vim-cmd

from VMware's own www

Using the ESXi command-line utility vim-cmd to power off the virtual machine

1. On the ESXi console, enter Tech Support mode and log in as root. 
2. Get a list of all registered virtual machines, identified by their VMID, Display Name, and path to the .vmx configuration file, using this command:
   
   vim-cmd vmsvc/getallvms
   
   
3. To get the current state of a virtual machine
   vim-cmd vmsvc/power.getstate VMID
   
4. Power off the virtual machine using the VMID found in Step 2 and run:
   
   vim-cmd vmsvc/power.off VMID
   
   Note: If the virtual machine fails to power off, use the following command:
   vim-cmd vmsvc/power.shutdownVMID

vSphere CLI

From VMware's own website...vSphere CLI commands

Documentation	Description
esxcli command	Lists descriptions of esxcli commands.
esxcli fcoe	FCOE (Fibre Channel over Ethernet) comands
esxcli hardware	Hardware namespace. Used primarily for extracting information about the current system setup.
esxcli iscsi	iSCSI namespace for minitoring and managing hardware and software iSCSI.
esxcli license	License management commands.
esxcli network	Network namespace for managing virtual networking including virtual switches and VMkernel network interfaces.
esxcli software	Software namespace. Includes commands for managing and installing image profiles and VIBs.
esxcli storage	Includes core storage commands and other storage management commands.
esxcli system	System monitoring and management command.
esxcli vm	Namespace for listing virtual machines and shutting them down forcefully.
svmotion	Moves a virtual machine's configuration file and optionally its disks while the virtual machine is running. Must run against a vCenter Server system.
vicfg-advcfg	Performs advanced configuration including enabling and disabling CIM providers. Use this command as instructed by VMware.
vicfg-authconfig	Manages Active Directory authentication.
vicfg-cfgbackup	Backs up the configuration data of an ESXi system and restores previously saved configuration data.
vicfg-dns.pl	Specifies an ESX/ESXi host's DNS (Domain Name Server) configuration.
vicfg-dumppart	Manages diagnostic partitions.
vicfg-hostops	Allows you to start, stop, and examine ESX/ESXi hosts and to instruct them to enter maintenance mode and exit from maintenance mode.
vicfg-ipsec	Supports setup of IPSec.
vicfg-iscsi	Manages iSCSI storage.
vicfg-module	Enables VMkernel options. Use this command with the options listed, or as instructed by VMware.
vicfg-mpath	Displays information about storage array paths and allows you to change a path's state.
vicfg-mpath35	Configures multipath settings for Fibre Channel or iSCSI LUNs.
vicfg-nas	Manages NAS file systems.
vicfg-nics	Manages the ESX/ESXi host's NICs (uplink adapters).
vicfg-ntp	Specifies the NTP (Network Time Protocol) server.
vicfg-rescan	Rescans the storage configuration.
vicfg-route	Lists or changes the ESX/ESXi host's route entry (IP gateway).
vicfg-scsidevs	Finds available LUNs.
vicfg-snmp	Manages the Simple Network Management Protocol (SNMP) agent.
vicfg-syslog	Specifies the syslog server and the port to connect to that server for ESXi hosts.
vicfg-user	Creates, modifies, deletes, and lists local direct access users and groups of users.
vicfg-vmknic	Adds, deletes, and modifies virtual network adapters (VMkernel NICs).
vicfg-volume	Supports resignaturing a VMFS snapshot volume and mounting and unmounting the snapshot volume.
vicfg-vswitch	Adds or removes virtual switches or vNetwork Distributed Switches, or modifies switch settings.
vifs.pl	Performs file system operations such as retrieving and uploading files on the remote server.
vihostupdate	Manages updates of ESX/ESXi hosts. Use vihostupdate35 for ESXi 3.5 hosts.
vihostupdate35	Manages updates of ESX/ESXi version 3.5 hosts.
vmkfstools	Creates and manipulates virtual disks, file systems, logical volumes, and physical storage devices on ESX/ESXi hosts.
vmware-cmd	Performs virtual machine operations remotely. This includes, for example, creating a snapshot, powering the virtual machine on or off, and getting information about the virtual machine.

viclient reghack

edit registry to populate vi client with vcenter server names 
HKEY_CURRENT_USER\Software\VMware\VMware Infrastructure Client\Preferences\recentconnections change ip to hostname or vice versa

ESX WWN & Firmware of HBA and NIC

Enable TSM

As root 

cd /proc/scsi/lpfc820

ls

3 4

cat 3

info given:

FC SCSI driver version

make and model on which pci bus

firmware version

portname = WWN

link up or down

TO GET FIRMWARE VERSION OF NIC:

as root

ethtool -i vmnic0

Results of tests conducted to see if there is a difference in performance for an 8 vCPU Windows 2008 R2 VM.

Summary: It makes no difference !

The test wanted to ascertain if there was a difference in performance between the following 3 configurations:

1 Socket 4 Cores

2 Sockets 2 Cores

4 Sockets 1 Core

A single Windows 2008 R2 VM was used.

PassMark PerformanceTest software was installed onto the VM – only the CPU Mark Test was used.

http://www.passmark.com/products/pt.htm

The TEST:

The VM started off configured with 1 Socket and 4 Cores.

The PassMark CPU test was run – the results collected by screenshot (see below). 

The VM was then shutdown. The VM settings were changed to a 2 Socket 2 Core configuration and the VM was then powered back on.

The CPU test was run again and the results collected before the VM was shutdown and reconfigured with 4 Sockets and 1 Core.

After powering on the PassMark CPU Test was run again and the results collected.

The Test was repeated an additional 2 times.

There were no other VMs running on the ESX host at the time.

The following is a summary of the results:

Place	Configuration	Score
1	1 Socket 4 Cores	4811.7
2	2 Sockets 2 Cores	4811.3
3	4 Sockets 1 Core	4809.2
4	1 Socket 4 Cores	4808
5	2 Sockets 2 Cores	4806.9
6	4 Sockets 1 Core	4806.6
7	4 Sockets 1 Core	4789.4
8	2 Sockets 2 Cores	4651.6
9	1 Socket 4 Cores	4564.4

                           

reactivate rearm windows eval licence

slmgr /rearm
reboot windows

slmgr /dlv
displays detailed info about licence