Hi guys. I have been asked answer a few questions about vmware. I need your help. I would really appreciate if you can help me with them.
1. You are in an enterprise scenario, what tool would you
use to manage your vmware environment.
2. You have assigned the same IP to your VMKernel and your
Service Console; is this recommended by vmware?
3. On one of your VM’s you are running out of disk
space. Your esx server has 100 gigs of
space free. How do you increase the disk
space on the VM?
4. Your network uses vlan’s and you have 20 esx servers that
have 8 vm’s each on them.
Each esx server can support a max of 8 vm’s each.
For security reasons, you have been tasked of placing groups of vm’s onto
separate vlan.
140 servers are to be on the same vlan. 5 sets of 4 vm’s each will reside on their
own unique vlan.
Management needs you to put together and present your plan
on how to accomplish this task. Please
state how you would accomplish this task.
(assume the switching fabric is cisco and can be designed to your
specifications)
5. How many virtual NIC’s can you assign to a VM thru ESX?
6. You are installing ESX server. What is the base OS/kernel?
7. In ESX, From the Command Line what command would you issue to see
the current firewall configuration
8. In ESX, what command line tool will allow you to automate VM
manipulations tasks such as shutting it down or taking a snapshot
9. What license type do you require to enable clustering and
vmotion? Foundation license or Standard License.
Power
Umm, these look like homework questions to me....
--Matt
VCP, vExpert, Unix Geek
Welcome to the VMware Community forums.
1. You are in an enterprise scenario, what tool would youuse to manage your vmware environment.
vCenter Server - but in part this would depend on your needs. In most cases your management would center around vCenter but you might have addiitional VMware or 3rd part tools to round out your managment needs.
2. You have assigned the same IP to your VMKernel and your Service Console; is this recommended by vmware?
With ESX you can have a service conole port and vmvkernel port and those have to be unique IPs. With ESXi there is no service console port. Management of your host is done over a vmkernel port, but you can have additional vmkernel ports for HA, vmotion, iSCSI / NFS storage. Each vmkernel port requires a unique IP address.
.3. On one of your VM’s you are running out of disk space. Your esx server has 100 gigs of space free. How do you increase the disk space on the VM?
You would increase the size of the VMDK for the VM and then use a partitioning tools in the VM to increase the drive to fill the rest of the virtual HB.
4. Your network uses vlan’s and you have 20 esx servers that have 8 vm’s each on them.
Each esx server can support a max of 8 vm’s each.
Just curious but why do you say 8 VMs per host? Depending on the VMs and the ESXi host hardware you could go much higher.
For security reasons, you have been tasked of placing groups of vm’s onto separate vlan.
140 servers are to be on the same vlan. 5 sets of 4 vm’s each will reside on their own unique vlan.
Management needs you to put together and present your plan on how to accomplish this task. Please state how you would accomplish this task. (assume the switching fabric is cisco and can be designed to your specifications)
You would create virtual vswitches consists of one or more NIC ports (for redundancy). You then create virtual machine port groups within the vSwitches. When you create VM port group you can assign a VLAN id to it. VMs assigned to that VM port group will use the VLAN id assigned to it. The ports the vSwitches are connected to have to be setup as trunk ports (to support more than on VLAN). That's a very simple answer to what can be a complex answer.
5. How many virtual NIC’s can you assign to a VM thru ESX?
You can assign up to 4. A VM can have up to 6 PCI devices - 2 are taken up by the video card and storage controller, so you could have 5 NICs if the VM didn't need a HD :).
6. You are installing ESX server. What is the base OS/kernel?
ESX / ESXi is the base OS. The vmkernel runs directly on hardware (and as an aside it is not based on Linux). ESX uses a Linux VM for management, but ESXi does not have that.
7. In ESX, From the Command Line what command would you issue to see the current firewall configuration
See www.vmware-land.com for a summary of esx* commands or if you search of esxcfg-firewall you should find something.
8. In ESX, what command line tool will allow you to automate VM manipulations tasks such as shutting it down or taking a snapshot
See above and search for vmware-cmd.
9. What license type do you require to enable clustering and vmotion? Foundation license or Standard License.
For clustering (HA) you need standard, but for vmotion you actually need Enterprise. For both you also need a vCenter server license.
Thanks much Guys. I need this for a questionnaire for job interview!
Power
Looks like they should hire Dave M - :smileycool:
If you find this or any other answer useful please consider awarding points by marking the answer correct or helpful
I hope for your sake the interviewer does not frequent these forums, as You may have just lucked out.
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Tom Howarth VCP / vExpert
VMware Communities User Moderator
Blog: www.planetvm.net
Contributing author for the upcoming book "VMware Virtual Infrastructure Security: Securing ESX and the Virtual Environment”.
Hi,
You can find good interview questions in the following link
http://www2.isupportyou.net/2010/06/vmware-interview-questions-tips.html
And other aricles and videos related to Virtualization at http://www2.isupportyou.net/
If you like this answer please vote for me
Regards
Charan.B
VCP4, MCSE, SCSA
Administrator
isupportyou.net
Thanks for answering the questions Dave!!!
I was curious about this questions:
5. How many virtual NIC’s can you assign to a VM thru ESX?
I believe we can assign 10 NIC's isnt it?
Did you consider awarding points by marking the answer correct or helpful?