locked
Exchange Information store RRS feed

  • Question

  • My question is based on this scenario.

    A user sends a mail with a 5MB attachment to a group of  10 persons.
    Will the exchange information store consumes 50 MB of disk space or 5MB of disk space?
    Is there a mechanism to keep only one copy of the attachment of 5 MB and making a link to the 10 persons?

    Thanks

    Monday, July 29, 2013 10:38 AM

Answers

  • Hi,

    Exchange single-instance storage.

    go through link

    http://support.microsoft.com/kb/175481/en-us

    .. thanks


    Regards, Sushant

    • Marked as answer by Oudaye Tuesday, July 30, 2013 6:31 AM
    Monday, July 29, 2013 11:43 AM
  • In Exchange 2003 Microsoft introduce “Single Instant Storage” where if user sends 5 MB attachment to 5 users in that case only 5 MB space use but all the users mailboxes should be in the same mailbox store otherwise more space required but this featured not available in Exchange 2010 server it means in Exchange 2010 server 25 MB space required.

    • Proposed as answer by Troy Werelius Monday, July 29, 2013 1:56 PM
    • Marked as answer by Oudaye Tuesday, July 30, 2013 6:31 AM
    Monday, July 29, 2013 1:24 PM
  • OK, I think you have our answer from the other posters, you do get SIS with Exchange 2003.  This works at the storage group level so if you have multiple storage groups there will be duplication of the message at that level - 1 per SG.

    Steve

    • Proposed as answer by Troy Werelius Monday, July 29, 2013 1:56 PM
    • Marked as answer by Oudaye Tuesday, July 30, 2013 4:42 AM
    Monday, July 29, 2013 1:53 PM
  • Hi,

    Exchange Server 2003 maintain single-instance storage of messages.

    If a message is sent to 10 recipients who reside in the same mailbox store,Exchange Server maintains only one copy of the message in its database and creates pointers.And if the message is sent to 10 recipients who reside in a different mailbox store, the message is written one time to each mailbox store.

    Hope it helps.

    Best regards,
    Amy

    • Marked as answer by Oudaye Tuesday, July 30, 2013 6:30 AM
    Tuesday, July 30, 2013 5:45 AM

All replies

  • Hi

    The answer will depend on which version of Exchange you use.  Some use Single Instance Storage with compression and others use better compression.

    Steve

    Monday, July 29, 2013 10:49 AM
  • Hi,

    We are using Exchange 2003, standard edition.

    Oudaye

    Monday, July 29, 2013 10:59 AM
  • Hi,

    Exchange single-instance storage.

    go through link

    http://support.microsoft.com/kb/175481/en-us

    .. thanks


    Regards, Sushant

    • Marked as answer by Oudaye Tuesday, July 30, 2013 6:31 AM
    Monday, July 29, 2013 11:43 AM
  • In Exchange 2003 Microsoft introduce “Single Instant Storage” where if user sends 5 MB attachment to 5 users in that case only 5 MB space use but all the users mailboxes should be in the same mailbox store otherwise more space required but this featured not available in Exchange 2010 server it means in Exchange 2010 server 25 MB space required.

    • Proposed as answer by Troy Werelius Monday, July 29, 2013 1:56 PM
    • Marked as answer by Oudaye Tuesday, July 30, 2013 6:31 AM
    Monday, July 29, 2013 1:24 PM
  • OK, I think you have our answer from the other posters, you do get SIS with Exchange 2003.  This works at the storage group level so if you have multiple storage groups there will be duplication of the message at that level - 1 per SG.

    Steve

    • Proposed as answer by Troy Werelius Monday, July 29, 2013 1:56 PM
    • Marked as answer by Oudaye Tuesday, July 30, 2013 4:42 AM
    Monday, July 29, 2013 1:53 PM
  • Hi,

    Exchange Server 2003 maintain single-instance storage of messages.

    If a message is sent to 10 recipients who reside in the same mailbox store,Exchange Server maintains only one copy of the message in its database and creates pointers.And if the message is sent to 10 recipients who reside in a different mailbox store, the message is written one time to each mailbox store.

    Hope it helps.

    Best regards,
    Amy

    • Marked as answer by Oudaye Tuesday, July 30, 2013 6:30 AM
    Tuesday, July 30, 2013 5:45 AM