Technical information

Ordering Guide
© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential/Proprietary—Pricing for illustration purposes only. Pricing subject to change. Page 27 of 88
●
The Cisco Unified Communications Manager hardware compatibility matrix at
http://www.cisco.com/en/US/prod/collateral/voicesw/ps6790/ps5748/ps378/prod_brochure0900aecd8062a4f9.
html will tell you if the desired “to” Cisco Unified Communications Manager version will work with your existing
hardware, or if a hardware upgrade or server migration is required.
●
The supported Cisco Unified Communications Manager direct upgrade paths at
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/compat/ccmcompmatr.html will tell you how many
“hops” it will take to get to the desired “to” Cisco Unified Communications Manager version. Old or earlier
releases may require a multihop upgrade path.
In general, most upgrades and migrations for which a direct software upgrade path exists will fall into one of the
following scenarios. If a scenario says server migration is optional, a hardware upgrade (RAM or disk) may still be
required to run the new Cisco Unified Communications Manager version. Figure 1 shows the server migration paths.
Figure 1. Server Migration Paths
1. Server Migrations
In this scenario, the customer desires to transfer the software licenses to a different server that may be newer, better,
or otherwise different. For example:
●
A “server upgrade”, such as migrating from Cisco MCS 7825 to MCS 7835, or from Cisco MCS 7835 to MCS
7845
●
A manufacturer change, such as migrating from an HP model to an IBM model or vice versa
●
A generation change, such as migrating from Cisco MCS 7835-H1 to MCS 7835-H2, or from Cisco MCS
7825-I2 to MCS 7825-I3
●
Changing from a Cisco MCS 7800 to a Software-only equivalent, or vice versa
Server Migrations are available only for Cisco Unified CallManager 3.3(5) or later. Server Migrations may be
performed only if the desired new server will work with the existing version of Cisco Unified Communications
Manager; see the compatibility matrix at:
http://www.cisco.com/en/US/prod/collateral/voicesw/ps6790/ps5748/ps378/prod_brochure0900aecd8062a4f9.html.
Ensure you order the correct SKU for replacement Cisco MCS 7800 hardware.