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
Solved

Dismount Exchange Databases when P2V

Posted on 2013-02-05
3
578 Views
Last Modified: 2013-02-28
Hello,
I will P2V my Exchange Server. In the few sources I found that I have to Dismount Exchange Database.

Why I have to do it? Is it risky? How it will effect if I will leave it as is?

Please see step 4:Minimize System Activity in attached file.

Thank you.
Exchange-P2V-Guide.pdf
0
Comment
Question by:ergo6a
3 Comments
 
LVL 52

Expert Comment

by:Manpreet SIngh Khatra
ID: 38857080
Why I have to do it? - When you dismount it goes into Clean shutdown state and best to mount if not and goes Dirty it can even get corrupt

Is it risky?- Not at all

How it will effect if I will leave it as is? - Good if nothing happens but if corrupt or dirty state then issues my friend

- Rancy
0
 
LVL 16

Accepted Solution

by:
choward16980 earned 500 total points
ID: 38857116
When doing a P2V, you're creating a delta point on your Physical, which is nothing more then changes that occur outside the point of launching the migration.  This allows the server to move the bulk image of your drive to the Virtual host as one solid file.  When this process is completed, it moves the delta, which is the data that has changed since the bulk disk file copy began and finished.

Exchange operates in a very similar way.  Your main database is a JET database that is two lump files and a slew of log files.  The log files are the changes that will eventually be rolled into your database once committed after a back or integrity check.

So, if you don't dismount the exchange database, you have now created two separate logical deltas that the server has to bounce back in forth to satisfy.  This isn't necessarily a bad thing these days, but back when HD performance was much slower, this would have devastating.  The corruption Rancy speaks of would come if one of your log files had a write error during this process, which like I said, isn't all the common these days, but you don't want to take the chances.  Also, the P2V process will take longer to significantly longer depending on the mail load you process during this operation.
0
 
LVL 8

Expert Comment

by:I Qasmi
ID: 38863953
When you will move your machine from Physical to Virtual , Definately with the help of an image of the physical machine and in that image if the exchange stores are dismount , then the system will take a snapshot image of the server with the database with cleanshutdown mode. And if it is mounted and image is taken chances are there of an image with the dirty shutdown in processed, will create a lot of difficulty.

Hope this helps
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Lotus Notes – formerly IBM Notes – is an email client application, while IBM Domino (earlier Lotus Domino) is an email server. The client possesses a set of features that are even more advanced as compared to that of Outlook. Likewise, IBM Domino is…
This article lists the top 5 free OST to PST Converter Tools. These tools save a lot of time for users when they want to convert OST to PST after their exchange server is no longer available or some other critical issue with exchange server or impor…
To show how to generate a certificate request in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Servers >> Certificates…
The video tutorial explains the basics of the Exchange server Database Availability groups. The components of this video include: 1. Automatic Failover 2. Failover Clustering 3. Active Manager

860 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