Solved

Single Points of Failure of VMware hosts

Posted on 2012-12-24
7
407 Views
Last Modified: 2013-01-08
1) What would be some example single points of failures to look out for in environments using VMWare ESXi hosts to host up to 10 Guest Servers. And example fixes to remediate the SPOF's.

2) Just as a general rule, if you take on new networks is it common to find SPOF's in virtal environments? And any specific reasons why, i.e. cost of the high availability solution to mitigate the SPOF?

3) Are SPOF limited only to technology, or can people processes essentially be SPOF? if so what do you do to eliminate human/process SPOF?
0
Comment
Question by:pma111
  • 4
  • 2
7 Comments
 
LVL 37

Accepted Solution

by:
Neil Russell earned 250 total points
ID: 38718385
Obviously the first and most obvious SPOF would be in a non clustered VM setup. If you only have stand alone hosts, they are SPOF.

Clustered Vmware hosts with A SAN become more resilliant but again you can have SPOF's. Make sure you SAN has multipath connections, if via a fibre switch then make it via 2 fibre switches.

Your network connections to the cluster should again be via Multiple switches of course.

Yes it is quite common to find LOTS of VM setups with multiple SPOF! Cost being the usual reason.

Are people a SPOF? Yes!  ensure that the business has no reliance on a single person. As with any technology, train multiple people. If you can, Train a trainer and have them pass on the knowledge in a controlled and doccumented manner.

TEST, TEST and RETEST your systems/processes.
0
 
LVL 37

Expert Comment

by:Neil Russell
ID: 38718387
See a great paper by Dell on the very subject.

http://www.dell.com/downloads/global/power/ps4q05-20050285-Stanford.pdf
0
 
LVL 119

Assisted Solution

by:Andrew Hancock (VMware vExpert / EE MVE^2)
Andrew Hancock (VMware vExpert / EE MVE^2) earned 250 total points
ID: 38718598
Single SAN
Single network switches
Single Servers
Single PSUs
No RAID in servers
No RAID in SAN
0
Enterprise Mobility and BYOD For Dummies

Like “For Dummies” books, you can read this in whatever order you choose and learn about mobility and BYOD; and how to put a competitive mobile infrastructure in place. Developed for SMBs and large enterprises alike, you will find helpful use cases, planning, and implementation.

 
LVL 3

Author Comment

by:pma111
ID: 38718657
5) Can you define 'single servers' in laymans terms?

6) Would lack of backup also count as spof?
0
 
LVL 37

Expert Comment

by:Neil Russell
ID: 38718669
If you have a SINGLE VMWare HOST machine with ESKi installed on it, NOT clustered.
0
 
LVL 37

Expert Comment

by:Neil Russell
ID: 38718670
No backups? its not a SPOF but an idiots mistake.
0
 
LVL 119
ID: 38718675
Single server fails, no VMs can run!
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

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: Create your first Windows Virtual Machine on a VMware vSphere Hypervisor 6.5 (ESXi 6.5) Host Server, the Windows OS we will install is Windows Server 2016.
Teach the user how to use configure the vCenter Server storage filters Open vSphere Web Client:  Navigate to vCenter Server Advanced Settings: Add the four vCenter Server storage filters: Review the advanced settings: Modify the values of the four v…
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…

786 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