Solved

ESXi VM's on a SAN, multiple datastores better?

Posted on 2014-04-10
2
919 Views
Last Modified: 2014-04-11
Using a  3PAR StoreServ 7200  for datastores shared by a couple of vSphere ESXi Hosts running a small number of VM's on each host.

From a performance point of view, is it better to have multiple datastores, with each VM on its own datastore rather than putting all the VM's on a single datastore?

 I'm thinking that maybe separate datastores are similar to separate hard drives and you want to divide I/O between seperate datastores to speed things up.  Does this make sense?  Or does it not work that way with datastores on a SAN?

Thanks.
0
Comment
Question by:gateguard
[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
2 Comments
 
LVL 121

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 39993480
But all your LUNs on your 3PAR are carved up from the same spindles.

So two datastores on the same spindles, should perform the same.

However, you may want to create multiple datastores, to split the VMs, as not to put all your eggs in one basket, should you have an issue with a single datastore, e.g. corruption etc

So it's common place to create multiple LUNs on the SAN, presented to ESXi, for multiple datastores.

We create LUNs between 500-800GB on average, and some super LUNs of 2TB for very large VMs.
0
 

Author Closing Comment

by:gateguard
ID: 39993608
Thanks!
0

Featured Post

Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.

Question has a verified solution.

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

HOW TO: Connect to the VMware vSphere Hypervisor 6.5 (ESXi 6.5) using the vSphere (HTML5 Web) Host Client 6.5, and perform a simple configuration task of adding a new VMFS 6 datastore.
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…
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…
This tutorial will walk an individual through the steps necessary to enable the VMware\Hyper-V licensed feature of Backup Exec 2012. In addition, how to add a VMware server and configure a backup job. The first step is to acquire the necessary licen…

707 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