While running some reports on Exchange backup success I could not figure out why when I ran get-mailboxdatabase | fl Name,LastFullBackup it would return a blank LastFull Backup. In Exchange Management console I could look at the properties of the database and see the Last full backup and the Last incrementation backup times.
There are a number of advantages to spreading your users’ mailboxes across your databases in Exchange 2007 versus putting department or groups in to a single database together. One of the biggest advantages is risk mitigation of a single database outage putting an entire group out of commission. Managing database sizes is also important in your environment to meet backup and restore Service Level Agreements (SLAs) in your organization.
Using my previous employers standard SQL build caused some issues installing a new OCS pool. The 2 errors are related to the articles below.
Security Account Delegation
Shrinking your model DB size.