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How to increase white space in Exchange 2010 DB RRS feed

  • Question

  • Dear All,

    I have 6 Databases i was checking the "Availablenewmailboxspace" command against one of my database i got 128 MB of white space i have set my db limits to 50+60+70 GB. later i have removed emails from recovery items it has increased to 165 MB how to expand this DB

    God Blessings........!

    regards


    RaSa

    Tuesday, April 24, 2012 6:05 AM

Answers

  • Hi

    Your database EDB file will expand automatically until the space on the disk is used up.  The ways to increase white space would be to shorten the deleted items retention time, purge disconnected mailboxes and any soft deleted ones.

    Cheers, Steve

    • Marked as answer by Syed_Rabbani Wednesday, April 25, 2012 7:05 AM
    Tuesday, April 24, 2012 7:57 AM
  • There is no reason to manually increase whitespace in an Exchange database.


    Mike Crowley | MVP
    My Blog -- Planet Technologies

    • Proposed as answer by Terence Yu Wednesday, April 25, 2012 3:16 AM
    • Marked as answer by Terence Yu Friday, May 4, 2012 6:48 AM
    Tuesday, April 24, 2012 2:47 PM
  • You should not be worried about white space, rather focus on how much available disk space you have where you store your databases on. When there is a whitespace on the database, Exchange will re-use it and when there is none left, the database will continue to grow as expected and if you do not have adequate space to hold the database, eventually due to insufficient disk space your database will get dismounted. Hence, placing HD monitoring on MBS server, for available space etc. does have value and will help to keep service continuity.

    Good luck

    ocd


    Oz Casey, Dedeal MCITP (EMA), MCITP (EA), MCITP (SA) Visit smtp25.blogspot.com Visit Telnet25.wordpress.com   This posting is provided AS-IS with no warranties or guarantees and confers no rights.

    • Proposed as answer by Terence Yu Wednesday, April 25, 2012 3:16 AM
    • Marked as answer by Terence Yu Friday, May 4, 2012 6:48 AM
    Tuesday, April 24, 2012 3:37 PM

All replies

  • Hi

    Your database EDB file will expand automatically until the space on the disk is used up.  The ways to increase white space would be to shorten the deleted items retention time, purge disconnected mailboxes and any soft deleted ones.

    Cheers, Steve

    • Marked as answer by Syed_Rabbani Wednesday, April 25, 2012 7:05 AM
    Tuesday, April 24, 2012 7:57 AM
  • Dear Steve

    Thanks for your time exactly what i have done is empty the recover deleted items and i do not have any disconnected mailboxes secondly i can not understand the "Availablenewmailboxspace" means  say example my DB shown i have 160 MB Wspace can i add more new users in that DB and what are the effects if it does not have any whitespace say 0.

    Please Help me understading

    God blessings.........!

    Regards


    RaSa

    Tuesday, April 24, 2012 8:14 AM
  • No problem.

    White space is created when items are deleted or moved out of the database and it allows new data to be written before increasing the size of the EDB file on disk.

    If you have 160MB of white space in a 1024MB EDB file then you can write 160MB of new mail while the file size remains 1024MB.  if you write 200MB (when you have 160MB of white space) then the EDB file size will grow to 1064MB.

    If you have 0MB white space then then the EDB file will grow as soon as any new data is added.

    If you have no free space left on the drive then your EDB file will fail to grow and the database will dismount.

    Cheers, Steve

    Tuesday, April 24, 2012 8:22 AM
  • Thanks Dear

    As long as i have 1 TB of space in server Drive i will check and confirm

    god blessings

    Regards


    RaSa

    Tuesday, April 24, 2012 10:00 AM
  • Try emptying users' "deleted items". You could free up GIGs just deleting those items.
    Tuesday, April 24, 2012 1:45 PM
  • There is no reason to manually increase whitespace in an Exchange database.


    Mike Crowley | MVP
    My Blog -- Planet Technologies

    • Proposed as answer by Terence Yu Wednesday, April 25, 2012 3:16 AM
    • Marked as answer by Terence Yu Friday, May 4, 2012 6:48 AM
    Tuesday, April 24, 2012 2:47 PM
  • You should not be worried about white space, rather focus on how much available disk space you have where you store your databases on. When there is a whitespace on the database, Exchange will re-use it and when there is none left, the database will continue to grow as expected and if you do not have adequate space to hold the database, eventually due to insufficient disk space your database will get dismounted. Hence, placing HD monitoring on MBS server, for available space etc. does have value and will help to keep service continuity.

    Good luck

    ocd


    Oz Casey, Dedeal MCITP (EMA), MCITP (EA), MCITP (SA) Visit smtp25.blogspot.com Visit Telnet25.wordpress.com   This posting is provided AS-IS with no warranties or guarantees and confers no rights.

    • Proposed as answer by Terence Yu Wednesday, April 25, 2012 3:16 AM
    • Marked as answer by Terence Yu Friday, May 4, 2012 6:48 AM
    Tuesday, April 24, 2012 3:37 PM
  • Check event id 1221 in the eventvwr for free whitespace.

    James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

    Tuesday, April 24, 2012 3:55 PM
  • Check event id 1221 in the eventvwr for free whitespace.

    James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com

    Note for Exchange 2010 there is no more 1221 or 70x event log entries.  to get whitespace info in 2010 do the following:

    Get-MailboxDatabase Database1 -Status | FL AvailableNewMailboxSpace

    http://www.shudnow.net/2009/10/25/exchange-2010-24x7-online-defragmentation-and-online-database-scanning/





    Mike Crowley | MVP
    My Blog -- Planet Technologies



    Tuesday, April 24, 2012 5:54 PM
  • Dear ALL

    Hence steve  and OZ answers are the same so marked both as the answers

    Thanks for contributing

    God blessings for all

    Regards


    RaSa

    Wednesday, April 25, 2012 7:07 AM
  • Hello RaSa,

    I want something to add to the steve siyavaya's comment. From practice I've noticed that the whitespace is not allocated once soft deleted mailbox data is being purged. It just stays as whitespace and never being used. The DB is increasing but the White space is not decreasing.

    BR,

    Valio

    Wednesday, September 11, 2013 12:54 PM