Enter maintenance mode from the ESX command line:
vimsh -n -e /hostsvc/maintenance_mode_enter
Backup every running vm via vcb in just one command:
for /f “tokens=2 delims=:” %%i in (’vcbvmname -h <virtualcenterserver> -u <user> -p <password> -s Powerstate:on ^| find “name:”‘) do cscript pre-command.wsf “c:\program files\vmware\vmware consolidated backup framework\” %%i fullvm
Enable VMotion from the command line:
vimsh -n -e “hostsvc/vmotion/vnic_set vmk0″