Tito's Blog

Backing up your ESXi Configuration:
To backup your ESXi configuration you’ll be using the vicfg-cfgbackup.pl command as follows:

* Download either the vMA or vCLI
* Launch vicfg-cfgbackup.pl:
C:\Program Files\VMware\VMware vSphere CLI\bin>vicfg-cfgbackup.pl –save –server 192.168.15.253 –username root –password password backup.bak
* Note: The backup will be stored relative to your user “AppData” path:
C:\Users\Username\AppData\Local\VirtualStore\

Restoring your ESXi Configuration:

Restoring your ESXi config can be done after you have the host up and responding over the network again by using the following:

C:\Program Files\VMware\VMware vSphere CLI\bin>vicfg-cfgbackup.pl –load –server 192.168.15.253 –username root –password password backup.bak

Note: You will be asked to reboot the host on restore.

Backing up multiple hosts! – There is a script to backup multiple ESXi hosts on the VMware communities site here. Also in PowerCLI here!

Question: What NICs ?

Answer: esxcfg-nics –l

Example:

[root@TitoLab01 root]# esxcfg-nics -l
Name    PCI      Driver      Link Speed    Duplex MTU    Description
vmnic0  02:00.00 e1000       Up   1000Mbps Full   1500   Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
vmnic1  02:02.00 e1000       Up   1000Mbps Full   200    Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
vmnic2  02:03.00 e1000       Up   1000Mbps Full   200    Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)

Question: How do I change the duplex/speed?

Answer: Using esxcfg-nics –s 10/100/1000 –d “full/half” vmnic#

Example:

[root@TitoLab01 root]# esxcfg-nics -d half -s 10 vmnic1
[root@TitoLab01 root]# esxcfg-nics -l
Name    PCI      Driver      Link Speed    Duplex MTU    Description
vmnic0  02:00.00 e1000       Up   1000Mbps Full   1500   Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
vmnic1  02:02.00 e1000       Up   10Mbps Half 200    Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
vmnic2  02:03.00 e1000       Up   1000Mbps Full   200    Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)

What you see above is that I changed the speed and duplex of vmnic1 to 10 half. I also made it bold!

To Revert the changes

[root@TitoLab01 root]# esxcfg-nics -a vmnic1

Please wait for few seconds

[root@TitoLab01 root]# esxcfg-nics -l
Name    PCI      Driver      Link Speed    Duplex MTU    Description
vmnic0  02:00.00 e1000       Up   1000Mbps Full   1500   Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
vmnic1  02:02.00 e1000       Up   1000Mbps Full   200    Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
vmnic2  02:03.00 e1000       Up   1000Mbps Full   200    Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)

Attached here are some sample questions

QUESTION NO: 37
What is the proper LUN Masking configuration for LUNs presented to an ESX Host when using the
Boot from SAN option?
A. The Boot LUN should be masked so that only one ESX Host can see the LUN, while the
datastore LUNS should be masked so that all ESX Hosts can see the LUNs
B. The Boot LUN and datastore LUNS should be masked so that all ESX Hosts can see the LUNs
.co
m
C. The Boot LUN should be masked so that all ESX Hosts can see the LUN, while the datastore
LUNS should be masked so that only one ESX Host can see the LUNs
D. The Boot LUN and datastore LUNS should be masked so that only one ESX Host can see the
LUNs
Answer: A

QUESTION NO: 71
virtual machine the first time the virtual machine powers on after it has been connected to the
dvPort Group?
A. Static Binding
tua
lTe
sts
When creating a dvPort group, which of the following port binding options assigns a port to a
B. Ephemeral
C. Flexible
D. Dynamic Binding
Answer: D

Download Full PDF Here VCP-410