Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Trouble Setting Up VMWare HA

Posted on 2008-06-22
7
Medium Priority
?
1,702 Views
Last Modified: 2012-06-27
So, my goal with this project is to set up a simple VMWare HA Cluster.  I am currently getting an error in Virtual Center on one of the hosts I have placed in my cluster (it has a small red triangle and exclamation mark) and in the event log says "Failed to Resolve Short Name [Name] to IP Address on Host [Public IP]"  I did make an attempt to set up a Virtual Machine, but, when I did that it seems as though the Virtual Machine is not able to establish an Internet connection.  I think something is wrong with my Networking setup.  

Here is the description of my setup:
1.  For my shared array, I am using an EMC Clariion AX150i (iSCSI)
2.  The storage array is connected to two separate switches, one for network 10.100.0.x and one for network 10.101.0.x
3.  Each host in my cluster is able to connect to the virtual drive on the disk array, and is already formatted with VMFS
4.  I have the following network setup for each host in VMWare:

a: vswitch0
a(i): VM Network
a(ii) Service Console ([Public IP])

b:vswitch1 (Note, this adapter is connected to a crossover cable, which is connected to by other ESX Host)
b(i):  VMKernel: 10.102.0.2 *Also configured as my VMotion adaptor/virtual switch

c:vswitch2
c(i) Vkernel2 (10.101.0.12)
c(ii) Service Console 2 (10.101.0.14)

d:vswitch3
d(i) Vkernel3 (10.100.0.12)
d(ii) Service Console 3 (10.100.0.14)


Please, please help me try to understand what I did wrong here and how to fix it.  I have been looking at this for a long time and am a bit frustrated, and really need some help.  I do not have a lot of experience with VMWare, and really want to get this working.  Please, Please!

Thanks in advance!
0
Comment
Question by:superfly18
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 6
7 Comments
 
LVL 5

Accepted Solution

by:
HeinoSkov earned 2000 total points
ID: 21841531
Hi,

VMware HA is extremely dependent on name resolution. So you have 2 choices.

1. Use a DNS server and create a records for each of your ESX hosts. Also point the ESX hosts to use that name server

2. Use a hosts file on each ESX server and define the other ESX servers in the cluster.

Remember that ESX also is case sensitive. So create all your ESX server names with small letters and use small letters in either DNS or the hosts file.

DNS configuration is under Configuration / DNS

The hosts file is located under /etc/hosts in the service console.
0
 
LVL 1

Author Comment

by:superfly18
ID: 21841603
Is there anyway to configure the hosts in Virtual Center?  For some reason I can't seem to connect to the service console through ssh right now...
0
 
LVL 1

Author Comment

by:superfly18
ID: 21841655
All of the DNS Settings on the service console of vswitch0 seem proper (small letters, right dc's, right gatways, etc.)
0
Turn your laptop into a mobile console!

The CV211 Laptop USB Console Adapter provides a direct Laptop-to-Computer connection for fast and easy remote desktop access with no software to install.

 
LVL 1

Author Comment

by:superfly18
ID: 21841727
It seems as though the DNS entries have not been created (e.g. the computer settings have not been established in my DC/Active Directory).  

Below is the hosts file that is currently installed on server 1:

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost.localdomain localhost
[public ip 1]          name1.nod.com name1

Here is the hosts file that is currently installed on server 2:
 Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost.localdomain localhost
[public ip 2]           name2.nod.com name2

I assume what you are suggesting is to copy name2 to the server 1 file, and name 1 to the server 2 file (e.g. copy entries from one file to another?  If I do that do I need to restart the ESX Servers?

Please let me know
0
 
LVL 1

Author Comment

by:superfly18
ID: 21841781
Ok!  I made that entry, and now I have no more red x next to my cluster. :-) :-)  However, I still have the issue with the virtual machine, as it seems as though that vm cannot access the network.  Additionally though I should mention that when I look at the 'map' diagram from my VM it shows both of the IP addresses from either cluster host with big red x's in front of them.  On the virtual machine, I am still unable to ping anything (e.g. www.google.com) even though the network.interfaces on the virtual machine looks fine.  
0
 
LVL 1

Author Comment

by:superfly18
ID: 21841845
Just another quick update:  I changed the network on the virtual guest to 'Virtual Machine Network'.  Now on my map I have one host with a green dot, and one with a red x (instead of two red x's).  However, I still am unable to ping anything (e.g. www.google.com) from the virtual guest itself.  I think this is the last bit to figure out, and then I'm finally done!  Please help!
0
 
LVL 1

Author Comment

by:superfly18
ID: 21850388
The issue that I had was related to two things (1) configuration of the Service Console gateway; and (2) configuration of my virtual switches.   HeinoSkov's answer definately got me pointed in the right direction, and I owe him a LOT of thanks!
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article will show you how to create an ISO CD-ROM/DVD-ROM image (*.iso), and MD5 checksum signature, for use with VMware vSphere Hypervisor 6.5 (ESXi 6.5). It's a good idea to compare checksums, because many installations fail because of a corr…
In this article, I will show you HOW TO: Install VMware Tools for Windows on a VMware Windows virtual machine on a VMware vSphere Hypervisor 6.5 (ESXi 6.5) Host Server, using the VMware Host Client. The virtual machine has Windows Server 2016 instal…
Advanced tutorial on how to run the esxtop command to capture a batch file in csv format in order to export the file and use it for performance analysis. He demonstrates how to download the file using a vSphere web client (or vSphere client) and exp…
Hi friends,  in this video  I'll show you how new windows 10 user can learn the using of windows 10. Thank you.

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question