14. Internal Network Phone system
(PBX or VOIP)
Web
browser
Outlook (remote
user)
Mobile phone
Line of business application
Mailbox
Stores mailbox and
public folder items
Unified Messaging
Voice mail and
voice access
Client Access
Client connectivity
Web services
Outlook (local user)
Layer 7 LB
AD
External
SMTP
servers
Edge
Transport
Routing and
AV/AS
Hub Transport
Routing and policy
Forefront Online
Protection for
Exchange
15. Internal Network
Web
browser
Outlook (remote
user)
Mobile phone
LOB Application
External
SMTP
servers
Exchange 2010
Edge
Transport
Forefront Online
Protection for
Exchange
CAS
(Array)
MBX
(DAG)
Outlook (local user)
Layer4loadbalancing
Phone system
(PBX or VOIP)
You can create many more databases, as there are really two limits: the number of database instances JET allows you to create (amuch higher number) and the number of databases Store/Repl are allowed to mount. Both are limits in code. There’s no use case for creating databases you cannot mount, but having the two limits gives us greater flexibility in terms of development and licensing.
Get-LogonStatistics remains in the product and in the documentation, but it is being deprecated and it is not supported in Exchange 2013.
Includes transport sizing, factoring in message queue expiration and Safety Net hold time when calculating the database size