Solved

VMWare Fault Tolerance without a SAN

Posted on 2014-01-16
3
2,755 Views
Last Modified: 2014-01-16
Hi All.

I've been told that it is possible to setup a vmware cluster to run virtual machines with Fault Tolerance enabled without the need of an external shared storage.

A storage would be created using disk units from both servers in the cluster and shared between them, so should one of them fail, the storage would still be available because it is mirrored in both machines.

In other words, the required shared storage is created using the physical resources of the very same physical computers hosting the FT-enabled virtual machines.

Is this true at all?

Thank you.
0
Comment
Question by:ScreenFox
  • 2
3 Comments
 
LVL 119

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 39784807
Yes, this can be done, with additional software, it's not included by default with VMware vSphere (depends which license you pick and package) using many different Virtual SAN products, which use the local resources (e.g. local disks of the hypervisor), in effect VMs which are hosting the shared storage, and then the hypervisors "loop back" and use shared storage on themselves!

Here are some Virtual SAN Products, ALL are available for evaluation and trials for FREE!

VMware vSphere Storage Appliance (VSA)

HP StoreVirtual VSA

SvSAN - by StorMagic

SAN Symphony by DataCore

StarWind iSCSI SAN & NAS V6

StarWind iSCSI SAN Free Edition Ideal iSCSI SAN at ZERO cost

All of the above except the FREE edition offer a Clustered Storage solution between at least two hosts, which is highly available, to ensure your shared storage is always available, which will be *critical* to your FT solution. All are certified by VMware.

The grand daddy of all the products is HP Store Virtual VSA (used to be called LeftHand, before HP purchased). e.g. is was the first. VMware entry into the virtual SAN arena, has come very late, and it's the newest.

We use and have installed all the products, our favourite is HP StoreVirtual VSA
0
 

Author Comment

by:ScreenFox
ID: 39785062
Thank you so much!
0
 
LVL 119
ID: 39785123
No problems.
0

Featured Post

Complete VMware vSphere® ESX(i) & Hyper-V Backup

Capture your entire system, including the host, with patented disk imaging integrated with VMware VADP / Microsoft VSS and RCT. RTOs is as low as 15 seconds with Acronis Active Restore™. You can enjoy unlimited P2V/V2V migrations from any source (even from a different hypervisor)

Question has a verified solution.

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

Suggested Solutions

Will try to explain how to use the VMware feature TAGs in the VMs and create Veeam Backup Jobs using TAGs. Since this article is too long, I will create second article for the Veeam tasks.
When rebooting a vCenters 6.0 and try to connect using vSphere Client we get this issue "Invalid URL: The hostname could not parsed." When we get this error we need to do some changes in the vCenter advanced settings to fix the issue.
Teach the user how to use create log bundles for vCenter Server or ESXi hosts Open vSphere Web Client: Generate vCenter Server and ESXi host log bundle:  Open vCenter Server Appliance Web Management interface and generate log bundle: Open vCenter Se…
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…

773 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