In visiting with customers, a common misconception that I have encountered is with the understanding of how Single Instance Store (SIS) works in Exchange 2007. Unlike Exchange 2003, SIS is only used to reduce the size of the database when an attachment is sent to two or more users that share the same database. To illustrate this, I have setup my lab to send large attachments to several users, exported the attachments to a PST file, and then imported the attachments back into the database. Note:... [More]

I have recently had a few customers who are focusing on a consolidation or ‘modernization’ of their directory services infrastructure, including delegation models.  A big part of this adjustment is the consolidation or restructuring of OUs.  Then the question becomes, “How do we approach this?”  The following is not meant to be a comprehensive solution but rather a high-level introduction to the migration considerations and approach. Background In Active Directory, organizatio... [More]