Do I have to migrate server or client to R2 first?
Migrate the servers first and then clients. The preferred server option is called a side by side migration. More on that below.
What server options do I have to migrate to R2?
You have two options:
The first option is the preferred option called a side by side migration which provides the least amount of downtime but requires additional hardware.
The second option is where you export data, tear down production, and then rebuild R2 on the same hardware if it is 64-bit capable. The final step is to re-import the user data. This saves money on hardware but requires downtime to make the switch.
Side by side migration
For a side by side migration, the recommended approach is called an inside out migration since you internal components first and then you migrate Edge roles. The steps are as follows:
- Create a unique SQL instance for R2 (due to R2 db schema updates)
- Deploy R2 pool in same domain as other R1/LCS pool - need new pool FQDN and side by side 64-bit hardware
- Use R2 move user wizard to move to new pool
Note1: R2 users can continue to use R1 director and R1 Edge roles
Note2: You can move back to R1 from the R2 pool if needed
- Move other server components to R2, Edge, etc.
- Turn down/Reprovision R1/LCS hw as needed
- Migrate Communicator clients and LiveMeeting clients to R2
How do you move LCS 2005?
You can move LCS 2005 SP1 users as well to an R2 pool – Note: Don't enable enhanced presence to still use LCS client - if you want to use enhanced presence upgrade client
What if users are logged into LCS or R1?
This is okay as users will be re-logged in after they are moved.
Export data migration
This is the second choice in R2 migration options but if HW is limited, etc this may be an alternative:
- Export data using the DBimpExp.exe to export buddy list data
- Tear down R1 and Deploy R2 on same HW
- Re-import buddy list
In the next post, Greg will post about how to migrate Edge, CWA, and Mediation servers to R2.