Lars Riehn, ACP

2. AD
Forefront
Online
Protection for
Exchange
Mobile
phone
Web
browser
Outlook
(remote user)
Line of
business
application
Outlook (local user)
External
SMTP
servers
Enterprise Network
Phone system
(PBX or VOIP)
Edge Transport
Routing and AV/AS
Layer 4LB
CAS Array DAG
CAS
CAS
CAS
CAS
CAS
MBX
MBX
MBX
MBX
MBX

4. Read/understand
sizing, scalability,
capacity guidance
• Documentation on
technet, Exchange
team blog, etc.
Collect data on
existing deployment
• User profile
(messages
sent+received per
day)
• Average message
size
Define constraints
based on customer
requirements
• # of DB copies
• Backup
requirements
• Storage architecture
• SafetyNet duration
• Virtualization
• Growth plans
• 3rd party products

5. Input profile data and
design constraints into
calculator tool (or
calculate manually)
• Always use the latest
calculator
Consider impact of
various options
provided by sizing
results
• Cost
• Rebuild times
• Impact on high
availability
Finalize design
• Storage calculator
provides
configuration scripts
• Archive the
calculator as
documentation of
the sizing process

6. http://aka.ms/E2013Calc

7. Mailbox or multi-role (Mailbox+CAS) 8GB minimum RAM
CAS 4GB minimum RAM
Edge 4GB minimum RAM
100
10
1
0.1
Minimum Disk Space (GB) 30GB
Exchange 2003 Exchange 2007 Exchange 2010 Exchange 2013

8. Managed availability has a measurable impact on the system
New content indexing architecture impacts performance

10. 10
1
0.1
0.01
50 100 150 200 250 300 350 400 450 500
Database IOPS
Messages Sent/Received Per-User Per-Day
Exchange 2003 Exchange 2007 Exchange 2010 Exchange 2013

12. Messages sent or
received per
mailbox per day
Mcycles per User,
Active DB Copy or
Standalone (MBX
only)
Mcycles per User,
Active DB Copy or
Standalone (Multi-
Role)
Mcycles per User,
Passive DB Copy
50 2.13 2.66 0.69
100 4.25 5.31 1.37
150 6.38 7.97 2.06
200 8.50 10.63 2.74
250 10.63 13.28 3.43
300 12.75 15.94 4.11
350 14.88 18.59 4.80
400 17.00 21.25 5.48
450 19.13 23.91 6.17
500 21.25 26.56 6.85

14. Messages sent or
received per
mailbox per day
Mailbox role
memory per
active mailbox
(MB)
50 12
100 24
150 36
200 48
250 60
300 72
350 84
400 96
450 108
500 120

15. 2GB + 2GB ×
worst−case active DBs per−server × users per−DB × mbx mcycles per−user × 0.25
per−core mcycles
Per-server DB
copies
Minimum
physical
memory (GB)
1-10 8
11-20 10
21-30 12
31-40 14
41-50 16

18. Per−server CAS memory = 2GB + 2GB ×
total user count
CAS server count in worst case
× Mailbox mcycles per−user × 0.25
mcycles per−core

24. http://www.microsoft.com/en-us/download/details.aspx?id=36849

25. http://www.microsoft.com/en-us/
download/details.aspx?id=40726