Solved

Need more disk space on virtual server. Should I add more disks on VM and then use Windows to make spanned volumes?

Posted on 2014-11-04
5
474 Views
Last Modified: 2014-11-05
hi guys,

I'm building a new file server. The original data is on a Windows 2003 server along with SAN storage. We're talking around 6-7TB's of data.

I've got storage on our SAN worth around 14TB. So if I wanted to create a new file server with around 10TB available on it, I would need to create large enough disks.

Now, I've been told that adding disks to Windows and then created a spanned volume on there isn't a great idea for performance? Is that true?

I'm running Vmware 4.1 sadly for now, so I know you can only go up to 8mb blocks and then create a maximum 2TB disk size until we upgrade to vmware 5.5 (which we are planning doing within the next 2 months).

Should I wait and upgrade to Vmware 5.5 and then be able to add larger disk blocks? Is that better for performance?

Thanks
Yashy
0
Comment
Question by:Yashy
  • 3
  • 2
5 Comments
 
LVL 119

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE^2) earned 500 total points
ID: 40422220
Performance of spanned disks, is poor, also spanned disks, as a way to increase disk size is really a "hack job".

Options

1. Spanned DIsks - the "hack job"

2. Create a 10TB LUN, and present this to the VM as a RAW Disk. (RDM)

3. Create a 10TB LUN, and present this to the VM as an iSCSI DIsk, in the VM, using Microsoft iSCSI Initiator.
0
 
LVL 1

Author Comment

by:Yashy
ID: 40424176
Hey Andy,

Thank you sir.

I usually add the disk by creating a new virtual disk and then selecting the datastore.

Can you tell me the difference between adding it as a RAW Disk? When I looked into that option it seems like a far more complex route of adding a disk, which evidently has its reasons.

Cheers
0
 
LVL 119
ID: 40424209
0
 
LVL 1

Author Comment

by:Yashy
ID: 40424367
Aha....just read it. I get it now:). I don't use it and would love to see how they are used in environments, but I now understand why they're used.

Thanks Andy for the feedback as always
0
 
LVL 119
ID: 40424532
No problems.

Andy
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

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

If we need to check who deleted a Virtual Machine from our vCenter. Looking this task in logs can be painful and spend lot of time, so the best way to check this is in the vCenter DB. Just connect to vCenter DB(default DB should be VCDB and using…
In this article, I will show you HOW TO: Suppress Configuration Issues and Warnings Alert displayed in Summary status for ESXi 6.5 after enabling SSH or ESXi Shell.
This tutorial will walk an individual through locating and launching the BEUtility application to properly change the service account username and\or password in situation where it may be necessary or where the password has been inadvertently change…
This Micro Tutorial steps you through the configuration steps to configure your ESXi host Management Network settings and test the management network, ensure the host is recognized by the DNS Server, configure a new password, and the troubleshooting…

791 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