Solved

VMware How to Make Multiple VMs Access a Single SAN Volume

Posted on 2012-03-26
6
481 Views
Last Modified: 2012-03-27
I have multiple VMs on one physical machine.  The physical machine is connected to a SAN (Fujitsu DX-80).  I want ALL the VMs on this machine be able to access the same file directory.      Is this possible?
0
Comment
Question by:Drafter421
  • 3
  • 3
6 Comments
 
LVL 5

Expert Comment

by:xperttech
ID: 37768459
I don't believe you can mount the same LUN (volume) on multiple VM's except for certain circumstances like "MS Clustering".

What you can do is mount the volume on one of your VMs and create a share at the top level and then share it with the rest of the VMs.

If you have a specific need, perhaps you can describe it in more detail, and I can try to give you better guidance on that.

-XT
0
 

Author Comment

by:Drafter421
ID: 37768471
The sharing thing is what we are trying to avoid.  Mostly for fail over.  If a VM fails we want to quickly make another one that access the same data as the one that failed.
0
 
LVL 5

Accepted Solution

by:
xperttech earned 500 total points
ID: 37768554
Depending on the nature of the data stored in this storage location, you could use NFS which allows for multiple systems to map nicely. Read/Write.

Now, if you are trying to mount a LUN in multiple VMs (this is called RDM -- Raw Disk Mapping), you might be better off planning your redundancy at the VMWare Host level.

How many hosts do you have? You can provision the LUN to the hosts instead and monitor Host stability with HA/DRS and if the host fails or becomes isolated, the VM (which should reside in the LUN <datastore> that multiple VMWare hosts see) would be brought up in the surviving host.

For higher licensing levels, there is also FT (Fault Tolerance) in VMWare.

Is this something you could consider?
0
Create the perfect environment for any meeting

You might have a modern environment with all sorts of high-tech equipment, but what makes it worthwhile is how you seamlessly bring together the presentation with audio, video and lighting. The ATEN Control System provides integrated control and system automation.

 

Author Comment

by:Drafter421
ID: 37768571
Where is NFS configured?
0
 
LVL 5

Expert Comment

by:xperttech
ID: 37769155
I don't know what kind of storage you have. I will assume that end is taken care of.

On the VMware host, go to Configuration/Storage and select to Add Storage, you will be asked to provide the server IP or DNS name and then the NFS share name. This is quite simple. You don't format the NFS storage because it is simply ready once you set it up at the storage processor end. This is the Unix type of file system.

Note:
When setting up NFS on the storage side, make sure you give read/write rights and root level access. And specify the allowed hosts (VMware hosts) by IP or DNS name. This way no one else can browse it and make changes to your data. NFS is pretty universally standard and can be read by almost all OSs. SO be crefull on this end.
0
 

Author Closing Comment

by:Drafter421
ID: 37772804
Thanks for your help and for sharing your knowledge.
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

Title # Comments Views Activity
IIS Site Configuration Copy 2 82
JVM encoding. How to change encoding. 27 120
Has my website been infiltrated? 21 69
what is socket pooling? 8 11
Periodically we have to update or add SSL certificates for customers. Depending upon your hosting plan you may be responsible for the installation and/or key generation. In the wake of Heartbleed many sites were forced to re-key. We will concen…
When it comes to showing a 404 error page to your visitors, you do not want that generic page to show, and you especially do not want your hosting provider’s ad error page to show either. In this article, I will show you how to enable the custom 40…
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…

713 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