M to I acquisition

Scope: Integrating email infrastructure for two large pharmaceutical corporations.

Acquired company:

Microsoft Exchange – mixed hybrid environment includes Exchange 2010, 2013 and Office 365 tenant,

~1800 end users,

~3.5K mailboxes – ~850 in Office 365

~50GB of files stored in OneDrive,

Two datacentres – EU and NA,

16 offices around the world,

~150TB od shared files

Acquiring company:

Microsoft Exchange 2010 ~80 servers with dedicated roles, fully redundant.

~35K end users,

~80K mailboxes,

Two datacentres – EU and NA,

~100 offices around the world,

Project plan:

1. Off-boarding Office 365 back On Premise

a. Exchange Online

User mailboxes: ~850

Shared mailboxes: ~200

Mail contacts: ~270

DL: ~650

b. OneDrive

~50GB – not much used

c. Sharepoint

Not in use

d. Skype for Business

Not in use

e. Yammer

Not in use

f. MS Temas

Not in use

2. Retire the Office 365 tenancy

3. Lift and shift On Premise whole environment including Active Directory, Exchange and Lync 2013 and other app servers from “M” to “I” datacenter accordingly, EU and NA.

4. Migrate “M” to “I” Exchange environment – AD, Exchange, Lync 2013 to Cisco Jabber and other applications.

Published by

Tomasz Chlebek

IT Architect with over 20 years experience.