Moving Exchange to the cloud. Will our bandwidth be enough based on the diagrams/stats shown?

hi guys

We're about to migrate our current exchange environment to a cloud based environment. We've got a dedicated fibre line which is 10mb/s upload and download, but it is over a 100mb bearer so we can increase the speeds when we require.

However, I'd like to know that based on the current statistics provided in my diagram whether the migration will make the cloud based service to work far too slow or greater delays in our send/receive of emails?

The first picture is showing our Exchange environment on the LAN. The second one shows what if we move to the cloud.

Any help from you guys would be great.
Yashy

Exchange-on-LAN.jpg
Exchange-in-the-cloud.jpg
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YashyAsked:
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DavidPresidentCommented:
Well, the answer is .. it depends.
Are you getting 4 emails a day or 40,000?

Are people using exchange (like me) as a database, where they have GB of PDFs and old documents that they are constantly referencing, and/or running queries through?

Since you are not online now, then why not monitor network traffic you are currently getting to establish a baseline?  Then there won't be any guesswork
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jrhelgesonCommented:
How many users?
Short answer is that it should be fine based upon the numbers.  We do hosted exchange for companies and a single 10mb connection will support hundreds of users.
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YashyAuthor Commented:
The stats in the diagram show the LAN traffic averaging 6gb and 11gb total sending and receiving. Over the internet sending is around 500mb and 400mb send and receive. And of course the current usage on the current 10mb line is averaging usage of 6mb/s during the lunchtime. It is used for Vpns and also all of the company internet usage. Considering all of these stats, will a remaining 4mb/s not affect anything? Total mailboxes is around 250.
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jrhelgesonCommented:
I think you'll be fine.
All devices accessing the store are caching the data and only new messages are really the ones going out.  Exchange bandwidth use is pretty steady throughout the day as devices are always checking in for new messages.
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Maen Abu-TabanjehNetwork Administrator, Network ConsultantCommented:
see here to learn about estimated bandwidth and calculation :

http://www.cgnet.com/content/estimating-bandwidth-cloud
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YashyAuthor Commented:
Thanks chaps. Is there any way I can find out how to get the number of transactions from the heavy users? can you do that using the Exchange console?
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Maen Abu-TabanjehNetwork Administrator, Network ConsultantCommented:
i did not understand what do you mean by transactions you mean database transaction logs?
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YashyAuthor Commented:
Sorry, I meant how do I find out how many emails some users have sent per day? Based on the article you've sent, I'm trying to find out how many emails a particular user sends per day, so that I can do the same with heavy users and take an average and then workout the bandwidth that might be used.
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Maen Abu-TabanjehNetwork Administrator, Network ConsultantCommented:
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YashyAuthor Commented:
Great stuff. Thanks for everybody's help on this, I really appreciate it.
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YashyAuthor Commented:
Excuse the mistake, I meant to give jordannet the main solution for pts.
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Maen Abu-TabanjehNetwork Administrator, Network ConsultantCommented:
its ok yasy .. the main thing more than points is that you found the answer .. wish to you good luck my friend :)
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