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Exchange 2010 Standard edition limited to 5 databases

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When talking about the new High Availability features in Exchange 2010 an often recurring question is “How many mailbox databases can you home on an Exchange 2010 Standard Edition?”

The answer is listed here: Looking at the On-Premise Licensing for Exchange Server 2010, and for a Standard Edition you are limited to 5 and for an Enterprise edition you are limited to 100:

Pic0229

The next question is a lot of times: does this apply to active mailbox databases only?

Let’s see…

I’ve got a DAG, called DAG1, which includes two servers: E2010CHM1, and E2010MU2. I’ve created a few mailbox databases as you can see in the picture below:

Pic0224

The following databases are mounted on E2010CHM1:

  1. Employees
  2. Mailbox Database 0789…
  3. Management
  4. Soleil
  5. Public Folder Database

And the following mailbox databases are mounted on E2010MU2:

  1. BHV
  2. Mailbox Database 1077…

Now let’s try to add a mailbox database copy for the mailbox database BHV, so it will be available as a passive database copy on E2010CHM1.

Pic0225Pic0226

 Pic0227

Here’s the result:

Pic0228  

 

 

Conclusion

Exchange 2010 Standard Edition is limited to a maximum database limit of 5 (which is the sum of active and passive database copies, and the public folder database!)

Ilse

Comments

  • Anonymous
    January 01, 2003
    I have a question that is related - 2 Std edition with 5 databases each - 2 Active - 2 passive and 1 PF each (5 DB per server) what about adding a 3rd Enterprise server and creating a 3rd copy of each database on the enterprise. I am virtually sure this is fine as the Ent server is not attempting to copy anything back to either std servers.

  • Anonymous
    January 01, 2003
    The comment has been removed

  • Anonymous
    January 01, 2003
    Good article!  An important side note - you must use Windows 2008 ENTERPRISE to utilize DAG.

  • Anonymous
    October 09, 2010
    And what about Personal Archive databases in SP1? Five databases is the limit for the sum of active, passive, public folder and personal archive databases?

  • Anonymous
    November 09, 2010
    So, if i got it right, there is a limit of 5 databases per server. Does that mean that if you had tried to add the copy to the other server (the one with only 2 databases) would it have been successful? Regards.

  • Anonymous
    November 17, 2011
    NOPE !!! FAIL!!! 5 Databases PER Server !!! look here: technet.microsoft.com/.../bb232170.aspx In Your Scenario you already have 5 Databases on E2010CHM1 !!! whackmann

  • Anonymous
    July 22, 2012
    It looks like the 'Soleil' db is already part of a DAG(?) Also, if you had attempted to add 'Employees' to your DAG would it have worked (since server 2 has less than 5 databases)?

  • Anonymous
    February 26, 2013
    I have a question, if I have standard edition of exchange 2010 how many user mailboxes can I create? thanks.

  • Anonymous
    May 10, 2014
    Pingback from Exchange 2013 SP1 – Pré-Requisitos de S.O | MSITPRO – Unified Communications

  • Anonymous
    May 10, 2014
    Pingback from Exchange 2013 SP1 – Pré-Requisitos de S.O | MSITPRO – Unified Communications

  • Anonymous
    May 20, 2014
    Pingback from Exchange 2013 SP1 – Pré-Requisitos de S.O | MSITPRO – Unified Communications

  • Anonymous
    May 26, 2014
    Hi guys:
    I got a question about licensing Exchange into a specific scenario.
    Here´s my story:

    My company has 4 mailbox servers running on EXchange 2010 Enterprise.
    We are moving to DAG configuration, from microsoft website we know that Enterprise version can support up to 100 databases (Active, passive and public folder).

    Since we have 4 instances running with Exchange 2010 Enterprise, and as we know this version support up to 100 databases , does that mean that my environment could have 400 databases as maximum?



  • Anonymous
    December 03, 2015
    The comment has been removed

  • Anonymous
    February 24, 2016
    Very precise article!