Solved

would putting the tempDB on a separate logical drive help performance on a virtual machine like it would running on a physical box?

Posted on 2015-02-05
5
229 Views
Last Modified: 2015-02-12
i have heard the logic and think in understand the reasoning of putting the tempDB on a separate physical drive when the SQL server is a standalone box.

and i *think* it is a combination of being on a separate controller and not sharing physical platter seeks when reading and writing data.


my question is
would that performance translate if the SQL server is a virtual machine?
is there a benefit to putting the tempdb on a different logical drive on the VM?

is there a separate "virtual" controller for the 2nd drive?


(also i think by extention...   putting the tempdb on a separate "drive" that is actually just a separate partion of one physical drive would not really provide the desired benefit either.... right?

also...  if this VM happens to be a VM on an Azure platform in the cloud ...  does that affect anything?


TIA
0
Comment
Question by:CASorter
  • 3
  • 2
5 Comments
 
LVL 118

Accepted Solution

by:
Andrew Hancock (VMware vExpert / EE MVE) earned 500 total points
ID: 40592542
if you put the virtual disk, on a different faster datastore - yes.

but if the datastore, is the same speed for all virtual disks - it's the same!
0
 

Author Comment

by:CASorter
ID: 40592587
ya, that gets more into the virtual server world than i know.


i know nothing of how it is set up or how the drives are allocated.

can you have a virtual disk on a different datastore than the VM?
0
 
LVL 118
ID: 40592593
Yes, you can have the VM configuration on one datastore, and have different virtual disks, on fast and slow datastores, with different technologies. e.g. SSD/Flash or Standard slow hard drives.
0
 

Author Comment

by:CASorter
ID: 40592600
0
 
LVL 118
ID: 40592614
It's a little different, because you select which storage you want to use, but it would apply.

e.g. Premium or Standard, so OS on Standard Storage, and tempdb on Premium.

or you entire VM, on Premium Storage.
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

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.
Ever wondered why sometimes your SQL Server is slow or unresponsive with connections spiking up but by the time you go in, all is well? The following article will show you how to install and configure a SQL job that will send you email alerts includ…
Viewers will learn how to use the SELECT statement in SQL to return specific rows and columns, with various degrees of sorting and limits in place.
This video shows you how easy it is to boot from ISO images for virtual machines with the ISO images stored on a local datastore on the ESXi host.

920 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

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now