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Exchange 2010 in Hyper-v

Posted on 2013-05-10
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Last Modified: 2013-05-13
Greetings,
I'm building a new Exchange 2010 in hyper-v and need some guidance.

Host OS is Server 2012 standard with:
12 cores\48GB Ram
Bare metal OS C:120GB
Drive for VM's D: 250GB
Data drive G: 1.6 T

VM is set up as 2008 r2 but Exchange 2010 is not yet installed.  Drives (8x500GB sata) are RAID 10.

The question I have is this:  At this point the VM is created.  I also created a data drive for the mailboxes which is around 1.2 T on the physical G: drive.  I plan on using the remainder of the space on G:\ for a drive for transaction log files. ~130GB.

The drive from the host OS will show that G:\ is completely out of space.  Any ideas if this will impact performance or is this an acceptable deployment plan?  Now is the time to adjust it as I am still in planning and early deployment. (headache Exchange 2003 to 2010 coming next)  I'd like to do this right.

Thanks!
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Question by:farrnate
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Eddie-Lopez earned 400 total points
ID: 39157140
Hi,

If I'm not mistaken, you say host drive G:\ will be full because space will be completely used by your VM virtual hard drives (mailboxes and log files). If so, no, it should not affect your host or VM performance in any way. That is, as long as your host operating system don't use drive G:\ for anything (e.g. don't configure any Virtual Memory Paging to this drive, etc.).

One thing you should be cautious is that your 1.2TB/130GB drive estimates are correct, since if one of your drives gets full in the future, you will not have a way to expand it (no "easy" way, at least).

Personally, I like to store my VMs data in faster SAN disks, but server internal storage would work.

Other than that, your deployment configuration seems fine to me.

Regards.
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by:farrnate
ID: 39157170
Yes your assessment of my physical drives sounds accurate.

Currently I have ~170 users with 2GB limit mailbox and many have attached .pst archives of 2-6GB.  As of right now my transaction logs are just under 2GB today (4pm)

My current mail store is maxxed out and I have an early morning script shutting down Exchange 2003 services and restarting them.  I know its a band-aid but I was remounting the mail store every morning very early.

I have one more back plane in the new server where I can mount another 8 drives and I have hopes that will serve as expansion ( I pulled teeth to get what I have as it is: Dell Poweredge R720)

I don't understand yet how to deal with the .pst archives.  Right now (as I inherited it) all the users archives are stored on a 4 GB Nas storage.  I'm not crazy about it but I am backing it up.  Is it a best practice to import the archives back into Exchange?

Many Thanks!

p.s. When I mentioned SAN they acted like I was  asking for a unicorn. LOL
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by:HornAlum
ID: 39157427
You stated there's a "drive" for VM's. is that the primary drive your VM's are stored on? and you're setting up the "data" drive on the 1.6TB drive? I'm guessing this is where you are placing the VHD file for the exchange "data drive"

I'd just make sure that you are creating those VHD's as static disks, and not dynamic. there is performance overhead to dynamic disks from having to constantly expand.

I'd consider creating two separate VHD's, one for the mailboxes, and once for the transaction logs, just to separate them out a bit.

to import archives back into exchange, you use the new-mailboxinportrequest command

http://exchangeserverpro.com/exchange-2010-import-pst-files-mailboxes/
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by:farrnate
ID: 39157620
Correct. I have made the 250 GB drive strictly for the VM OS. The bigger one is for data and I will make one more for the log files. I will study that import command and move forward with setup /preparead on Monday after the full backups have been verified. Sr. Management is really after me to get this thing cooking.
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by:HornAlum
HornAlum earned 100 total points
ID: 39160089
Do your best with what you have about allocating resources. Exchange will be one of the most important platforms in your environment and you will want the hardware to not be a performance bottle neck. run some I/O tests from your VM before you get exchange running on it.

the 2003 to 2010 transition is a bit complicated, so make sure you read up on it.  
some links that helped me:
http://www.boche.net/blog/index.php/2010/05/14/microsoft-exchange-2003-to-exchange-2010-upgrade-notes/
http://searchexchange.techtarget.com/tip/Moving-from-Exchange-2003-to-Exchange-2010-in-12-steps
http://www.networkworld.com/community/node/47632
https://www.simple-talk.com/sysadmin/exchange/upgrade-exchange-2003-to-exchange-2010/
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