Migrating from MCS7845 to UCS C210M2 Server for CUCM8.0

[Sumit Bhargava]

Customer Alpha has CUCM and Nortel.

(I.) Following is the CUCM Cluster breakup:

   - Location X: PUB, SUB1, SUB2
   - Location Y: SUB3
   - Location Z: SUB4, SUB5

(II.) Location Z, Block-A has 10,000 users on Nortel which need to be moved to CUCM8.0 for which the following two new SUBSCRIBER's added to the existing CUCM Cluster:

    - SUB6, SUB7
    - SUB6 & SUB7 will be installed on a UCS C210M2 server

    - Customer will be shipped with two UCS C210M2 with dual  quad core 5640 processor

2.In Location Z, currently SUB4 and SUB5 are on MCS 7845 server.

  Need to Migrate SUB4 and SUB5 on UCS C210M2 Server from MCS7845.

This way, Location Z with SUBSCRIBERS(SUB4, SUB5, SUB6 and SUB7) will migrate to UCS C210M2 server platform.

Rest of the locations namely- LocationsX & LocationY will continue running on MCS7845 platform.

Need to understand the Migration strategy (point wise) keeping in mind, the PUB is in LocationX still on MCS and only the SUB- SUB4, SUB5, SUB6 and SUB7 will be on UCS platform in locationZ.

Please share the steps required to perform this type of Migration.

Thanks & Regards

Sumit

[Gajanan Pande · Accepted solution]

Sumit,

1. You need to be on CUCM 8.0(2) at least, to be on UCS. As mentioned here

2. First keep the UCS boxes ready with CUCM 8.0.2 or later installed.

3. Before migrating from MCS to UCS, you need to bring the CUCM on MCS to exactly same version as of CUCM on UCS.

4. Take a DRS backup from MCS & restore it to UCS.

5. Now, disconnect the MCS boxes from network & connect UCS boxes.

Hope it helps ?

GP.

Pls rate helpful posts !!

[Sumit Bhargava]

Hi Gajanan,

Thanks for your prompt reply.

SUB4 Migration from MCS7845 to UCS C210M2 server involves the following steps:

1. Take SUB4 out of the Network.
   
2. Install SUB4 on UCS C210-M2 server, just as a fresh install  and ensure the same SUB4 name is assigned on UCS what its there on the MCS7845 platform.
   
3. While installation of SUB4, it ask for PUB details like IP Address, assign the reqd. details.
   
4. Migrate the users assigned to SUB4 with SUB5 for the time being, this step should have been performed in the beginning.
   
5. Once the installation is complete, you can re-install the users from SUB5 to SUB4.
   
6. Database replication will take place from PUB
   

Please confirm if Step4 is required or when we take the Backup using DRS of SUB4 and after the installation of SUB4 on UCS C210, restore the backup on SUB4 and then it would populate the users/phones  that were tregistered with SUB4 on MCS 7845 platform on to UCS C210M2 platform.

Do we need to take DRS of the PUB or SUB4?

Can you please put the steps in the correct order.....

Follow the same steps fro SUB5 Migration from MCS7845 to UCS C210M2 server platform.

Thanks & Regards

Sumit

[Chris Deren]

If you are going to restore from DRS there is no parital restore, it's full database, so there is no way to just restore some phones/users.  If you need to do this in phases and only restore some configuration at a time look into using BAT Export/Import funtionallity.

HTH,

Chris